Open Access

We believe in Open Access and the democratization of knowledge. Unfortunately, world class educational materials are normally hidden behind payment systems or in expensive textbooks. If you want this to change, you should help us out! Kind thoughts are not enough - you need to act! We do NOT use copyright as a restrictive instrument, but as an instrument to protect the author against misuse while encouraging redistribution and use of his/her work. As such, these copyright terms are designed for the author and the reader, not the publisher and the profit.

Except as otherwise noted, this work is copyright of and The Interaction Design Foundation (Chr. Molbechs Vej 4, DK-8000 Aarhus C, Denmark) and is licensed under the following terms:

1. The Creative Commons Attribution-ShareAlike Licence
2. The Interaction Design Foundation Addendum to the Creative Commons licence

...with the exception of materials described in...:

3. "Exceptions"

Furthermore, your use of Interaction-Design.org signifies your consent to:

4. the "Site Terms and Conditions"
5. the "Site Privacy Policy"

License

THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS CREATIVE COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). THE WORK IS PROTECTED BY COPYRIGHT AND/OR OTHER APPLICABLE LAW. ANY USE OF THE WORK OTHER THAN AS AUTHORIZED UNDER THIS LICENSE OR COPYRIGHT LAW IS PROHIBITED.

BY EXERCISING ANY RIGHTS TO THE WORK PROVIDED HERE, YOU ACCEPT AND AGREE TO BE BOUND BY THE TERMS OF THIS LICENSE. TO THE EXTENT THIS LICENSE MAY BE CONSIDERED TO BE A CONTRACT, THE LICENSOR GRANTS YOU THE RIGHTS CONTAINED HERE IN CONSIDERATION OF YOUR ACCEPTANCE OF SUCH TERMS AND CONDITIONS.

1. Definitions

1. "Adaptation" means a work based upon the Work, or upon the Work and other pre-existing works, such as a translation, adaptation, derivative work, arrangement of music or other alterations of a literary or artistic work, or phonogram or performance and includes cinematographic adaptations or any other form in which the Work may be recast, transformed, or adapted including in any form recognizably derived from the original, except that a work that constitutes a Collection will not be considered an Adaptation for the purpose of this License. For the avoidance of doubt, where the Work is a musical work, performance or phonogram, the synchronization of the Work in timed-relation with a moving image ("synching") will be considered an Adaptation for the purpose of this License.
2. "Collection" means a collection of literary or artistic works, such as encyclopedias and anthologies, or performances, phonograms or broadcasts, or other works or subject matter other than works listed in Section 1(f) below, which, by reason of the selection and arrangement of their contents, constitute intellectual creations, in which the Work is included in its entirety in unmodified form along with one or more other contributions, each constituting separate and independent works in themselves, which together are assembled into a collective whole. A work that constitutes a Collection will not be considered an Adaptation (as defined below) for the purposes of this License.
3. "Creative Commons Compatible License" means a license that is listed at http://creativecommons.org/compatiblelicenses that has been approved by Creative Commons as being essentially equivalent to this License, including, at a minimum, because that license: (i) contains terms that have the same purpose, meaning and effect as the License Elements of this License; and, (ii) explicitly permits the relicensing of adaptations of works made available under that license under this License or a Creative Commons jurisdiction license with the same License Elements as this License.
4. "Distribute" means to make available to the public the original and copies of the Work or Adaptation, as appropriate, through sale or other transfer of ownership.
5. "License Elements" means the following high-level license attributes as selected by Licensor and indicated in the title of this License: Attribution, ShareAlike.
6. "Licensor" means the individual, individuals, entity or entities that offer(s) the Work under the terms of this License.
7. "Original Author" means, in the case of a literary or artistic work, the individual, individuals, entity or entities who created the Work or if no individual or entity can be identified, the publisher; and in addition (i) in the case of a performance the actors, singers, musicians, dancers, and other persons who act, sing, deliver, declaim, play in, interpret or otherwise perform literary or artistic works or expressions of folklore; (ii) in the case of a phonogram the producer being the person or legal entity who first fixes the sounds of a performance or other sounds; and, (iii) in the case of broadcasts, the organization that transmits the broadcast.
8. "Work" means the literary and/or artistic work offered under the terms of this License including without limitation any production in the literary, scientific and artistic domain, whatever may be the mode or form of its expression including digital form, such as a book, pamphlet and other writing; a lecture, address, sermon or other work of the same nature; a dramatic or dramatico-musical work; a choreographic work or entertainment in dumb show; a musical composition with or without words; a cinematographic work to which are assimilated works expressed by a process analogous to cinematography; a work of drawing, painting, architecture, sculpture, engraving or lithography; a photographic work to which are assimilated works expressed by a process analogous to photography; a work of applied art; an illustration, map, plan, sketch or three-dimensional work relative to geography, topography, architecture or science; a performance; a broadcast; a phonogram; a compilation of data to the extent it is protected as a copyrightable work; or a work performed by a variety or circus performer to the extent it is not otherwise considered a literary or artistic work.
9. "You" means an individual or entity exercising rights under this License who has not previously violated the terms of this License with respect to the Work, or who has received express permission from the Licensor to exercise rights under this License despite a previous violation.
10. "Publicly Perform" means to perform public recitations of the Work and to communicate to the public those public recitations, by any means or process, including by wire or wireless means or public digital performances; to make available to the public Works in such a way that members of the public may access these Works from a place and at a place individually chosen by them; to perform the Work to the public by any means or process and the communication to the public of the performances of the Work, including by public digital performance; to broadcast and rebroadcast the Work by any means including signs, sounds or images.
11. "Reproduce" means to make copies of the Work by any means including without limitation by sound or visual recordings and the right of fixation and reproducing fixations of the Work, including storage of a protected performance or phonogram in digital form or other electronic medium.

2. Fair Dealing Rights. Nothing in this License is intended to reduce, limit, or restrict any uses free from copyright or rights arising from limitations or exceptions that are provided for in connection with the copyright protection under copyright law or other applicable laws.

3. License Grant. Subject to the terms and conditions of this License, Licensor hereby grants You a worldwide, royalty-free, non-exclusive, perpetual (for the duration of the applicable copyright) license to exercise the rights in the Work as stated below:

1. to Reproduce the Work, to incorporate the Work into one or more Collections, and to Reproduce the Work as incorporated in the Collections;
2. to create and Reproduce Adaptations provided that any such Adaptation, including any translation in any medium, takes reasonable steps to clearly label, demarcate or otherwise identify that changes were made to the original Work. For example, a translation could be marked "The original work was translated from English to Spanish," or a modification could indicate "The original work has been modified.";
3. to Distribute and Publicly Perform the Work including as incorporated in Collections; and,
4. to Distribute and Publicly Perform Adaptations.

5. For the avoidance of doubt:

   1. Non-waivable Compulsory License Schemes. In those jurisdictions in which the right to collect royalties through any statutory or compulsory licensing scheme cannot be waived, the Licensor reserves the exclusive right to collect such royalties for any exercise by You of the rights granted under this License;
   2. Waivable Compulsory License Schemes. In those jurisdictions in which the right to collect royalties through any statutory or compulsory licensing scheme can be waived, the Licensor waives the exclusive right to collect such royalties for any exercise by You of the rights granted under this License; and,
   3. Voluntary License Schemes. The Licensor waives the right to collect royalties, whether individually or, in the event that the Licensor is a member of a collecting society that administers voluntary licensing schemes, via that society, from any exercise by You of the rights granted under this License.

The above rights may be exercised in all media and formats whether now known or hereafter devised. The above rights include the right to make such modifications as are technically necessary to exercise the rights in other media and formats. Subject to Section 8(f), all rights not expressly granted by Licensor are hereby reserved.

4. Restrictions. The license granted in Section 3 above is expressly made subject to and limited by the following restrictions:

1. You may Distribute or Publicly Perform the Work only under the terms of this License. You must include a copy of, or the Uniform Resource Identifier (URI) for, this License with every copy of the Work You Distribute or Publicly Perform. You may not offer or impose any terms on the Work that restrict the terms of this License or the ability of the recipient of the Work to exercise the rights granted to that recipient under the terms of the License. You may not sublicense the Work. You must keep intact all notices that refer to this License and to the disclaimer of warranties with every copy of the Work You Distribute or Publicly Perform. When You Distribute or Publicly Perform the Work, You may not impose any effective technological measures on the Work that restrict the ability of a recipient of the Work from You to exercise the rights granted to that recipient under the terms of the License. This Section 4(a) applies to the Work as incorporated in a Collection, but this does not require the Collection apart from the Work itself to be made subject to the terms of this License. If You create a Collection, upon notice from any Licensor You must, to the extent practicable, remove from the Collection any credit as required by Section 4(c), as requested. If You create an Adaptation, upon notice from any Licensor You must, to the extent practicable, remove from the Adaptation any credit as required by Section 4(c), as requested.
2. You may Distribute or Publicly Perform an Adaptation only under the terms of: (i) this License; (ii) a later version of this License with the same License Elements as this License; (iii) a Creative Commons jurisdiction license (either this or a later license version) that contains the same License Elements as this License (e.g., Attribution-ShareAlike 3.0 US)); (iv) a Creative Commons Compatible License. If you license the Adaptation under one of the licenses mentioned in (iv), you must comply with the terms of that license. If you license the Adaptation under the terms of any of the licenses mentioned in (i), (ii) or (iii) (the "Applicable License"), you must comply with the terms of the Applicable License generally and the following provisions: (I) You must include a copy of, or the URI for, the Applicable License with every copy of each Adaptation You Distribute or Publicly Perform; (II) You may not offer or impose any terms on the Adaptation that restrict the terms of the Applicable License or the ability of the recipient of the Adaptation to exercise the rights granted to that recipient under the terms of the Applicable License; (III) You must keep intact all notices that refer to the Applicable License and to the disclaimer of warranties with every copy of the Work as included in the Adaptation You Distribute or Publicly Perform; (IV) when You Distribute or Publicly Perform the Adaptation, You may not impose any effective technological measures on the Adaptation that restrict the ability of a recipient of the Adaptation from You to exercise the rights granted to that recipient under the terms of the Applicable License. This Section 4(b) applies to the Adaptation as incorporated in a Collection, but this does not require the Collection apart from the Adaptation itself to be made subject to the terms of the Applicable License.
3. If You Distribute, or Publicly Perform the Work or any Adaptations or Collections, You must, unless a request has been made pursuant to Section 4(a), keep intact all copyright notices for the Work and provide, reasonable to the medium or means You are utilizing: (i) the name of the Original Author (or pseudonym, if applicable) if supplied, and/or if the Original Author and/or Licensor designate another party or parties (e.g., a sponsor institute, publishing entity, journal) for attribution ("Attribution Parties") in Licensor's copyright notice, terms of service or by other reasonable means, the name of such party or parties; (ii) the title of the Work if supplied; (iii) to the extent reasonably practicable, the URI, if any, that Licensor specifies to be associated with the Work, unless such URI does not refer to the copyright notice or licensing information for the Work; and (iv) , consistent with Ssection 3(b), in the case of an Adaptation, a credit identifying the use of the Work in the Adaptation (e.g., "French translation of the Work by Original Author," or "Screenplay based on original Work by Original Author"). The credit required by this Section 4(c) may be implemented in any reasonable manner; provided, however, that in the case of a Adaptation or Collection, at a minimum such credit will appear, if a credit for all contributing authors of the Adaptation or Collection appears, then as part of these credits and in a manner at least as prominent as the credits for the other contributing authors. For the avoidance of doubt, You may only use the credit required by this Section for the purpose of attribution in the manner set out above and, by exercising Your rights under this License, You may not implicitly or explicitly assert or imply any connection with, sponsorship or endorsement by the Original Author, Licensor and/or Attribution Parties, as appropriate, of You or Your use of the Work, without the separate, express prior written permission of the Original Author, Licensor and/or Attribution Parties.
4. Except as otherwise agreed in writing by the Licensor or as may be otherwise permitted by applicable law, if You Reproduce, Distribute or Publicly Perform the Work either by itself or as part of any Adaptations or Collections, You must not distort, mutilate, modify or take other derogatory action in relation to the Work which would be prejudicial to the Original Author's honor or reputation. Licensor agrees that in those jurisdictions (e.g. Japan), in which any exercise of the right granted in Section 3(b) of this License (the right to make Adaptations) would be deemed to be a distortion, mutilation, modification or other derogatory action prejudicial to the Original Author's honor and reputation, the Licensor will waive or not assert, as appropriate, this Section, to the fullest extent permitted by the applicable national law, to enable You to reasonably exercise Your right under Section 3(b) of this License (right to make Adaptations) but not otherwise.

5. Representations, Warranties and Disclaimer

UNLESS OTHERWISE MUTUALLY AGREED TO BY THE PARTIES IN WRITING, LICENSOR OFFERS THE WORK AS-IS AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND CONCERNING THE WORK, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF TITLE, MERCHANTIBILITY, FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR THE ABSENCE OF LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OF ABSENCE OF ERRORS, WHETHER OR NOT DISCOVERABLE. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES, SO SUCH EXCLUSION MAY NOT APPLY TO YOU.

6. Limitation on Liability. EXCEPT TO THE EXTENT REQUIRED BY APPLICABLE LAW, IN NO EVENT WILL LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES ARISING OUT OF THIS LICENSE OR THE USE OF THE WORK, EVEN IF LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

7. Termination

1. This License and the rights granted hereunder will terminate automatically upon any breach by You of the terms of this License. Individuals or entities who have received Adaptations or Collections from You under this License, however, will not have their licenses terminated provided such individuals or entities remain in full compliance with those licenses. Sections 1, 2, 5, 6, 7, and 8 will survive any termination of this License.
2. Subject to the above terms and conditions, the license granted here is perpetual (for the duration of the applicable copyright in the Work). Notwithstanding the above, Licensor reserves the right to release the Work under different license terms or to stop distributing the Work at any time; provided, however that any such election will not serve to withdraw this License (or any other license that has been, or is required to be, granted under the terms of this License), and this License will continue in full force and effect unless terminated as stated above.

8. Miscellaneous

1. Each time You Distribute or Publicly Perform the Work or a Collection, the Licensor offers to the recipient a license to the Work on the same terms and conditions as the license granted to You under this License.
2. Each time You Distribute or Publicly Perform an Adaptation, Licensor offers to the recipient a license to the original Work on the same terms and conditions as the license granted to You under this License.
3. If any provision of this License is invalid or unenforceable under applicable law, it shall not affect the validity or enforceability of the remainder of the terms of this License, and without further action by the parties to this agreement, such provision shall be reformed to the minimum extent necessary to make such provision valid and enforceable.
4. No term or provision of this License shall be deemed waived and no breach consented to unless such waiver or consent shall be in writing and signed by the party to be charged with such waiver or consent.
5. This License constitutes the entire agreement between the parties with respect to the Work licensed here. There are no understandings, agreements or representations with respect to the Work not specified here. Licensor shall not be bound by any additional provisions that may appear in any communication from You. This License may not be modified without the mutual written agreement of the Licensor and You.
6. The rights granted under, and the subject matter referenced, in this License were drafted utilizing the terminology of the Berne Convention for the Protection of Literary and Artistic Works (as amended on September 28, 1979), the Rome Convention of 1961, the WIPO Copyright Treaty of 1996, the WIPO Performances and Phonograms Treaty of 1996 and the Universal Copyright Convention (as revised on July 24, 1971). These rights and subject matter take effect in the relevant jurisdiction in which the License terms are sought to be enforced according to the corresponding provisions of the implementation of those treaty provisions in the applicable national law. If the standard suite of rights granted under applicable copyright law includes additional rights not granted under this License, such additional rights are deemed to be included in the License; this License is not intended to restrict the license of any rights under applicable law.

The Interaction Design Foundation Addendum to the Creative Commmons licence is a placeholder for additions to the Creative Commons licence, which are deemed necessary to include in consideration of Danish law and the operation of this site and The Interaction Design Foundation.

1. Attribution

If this work is used under the licencing conditions set forth here, attribution must be clearly given, i.e. the author's name, the title and URL of this work/publication/web page must clearly appear. The attribution must be given in a manner appropriate to the medium in which it is given: For example, electronic copies must include a clickable URL, which does not use the nofollow attribute value.

2. Updates

Internet technology, publishing technology, and the applicable laws, rules, and regulations change frequently. Accordingly, The Interaction Design Foundation reserves the unilateral right to update, modify, change and alter its Site Terms and Conditions as well as Copyright Terms at any time. All such updates, modifications, changes and alterations are binding on all users and browsers of Interaction-Design.org, readers of electronic and non-eletronic versions of the publications produced by The Interaction Design Foundation. Such updates will be posted on Interaction-Design.org.

Exceptions

Many materials published by The Interaction Design Foundation - both in print and electronically - may contain materials where the copyright is owned by a third party, e.g. another publisher. In this case, the copyright status depends on the third party, i.e. the copyright owner, and may for example be "all rights reserved - used with permission". When this is the case, we clearly label the content. For images, we both write the specific copyright label (including attribution) underneath the caption in both electronic and print copies as well as include the copyright label (including attribution) inside the image file (i.e. the full-resolution version) in metadata types like EXIF, IPTC, and XMP. We only include and label content with the following copyright terms:

1. Pd:
       Public Domain (information that is common property and contains no original authorship)
       Legal Code (full licence text): http://en.wikipedia.org/wiki/Public_domain
2. CompositeWorkWithMultipleCopyrightTerms:
       Work that is derived from or composed of multiple works with varying copyright terms and/or copyright holders
3. FairUse:
       Copyrighted materials that meet the legal criteria for Fair Use when used by the Interaction Design FoundationThe most common cases of Fair Use are: 1) Cover art: Cover art from various items, for identification only in the context of critical commentary of that item (not for identification without critical commentary). 2) Team and corporate logos: For identification. 3) Other promotional material: Posters, programs, billboards, ads: For critical commentary. 4) Film and television screen shots: For critical commentary and discussion of the cinema and television. 5) Screenshots from software products: For critical commentary. 6) Paintings and other works of visual art: For critical commentary, including images illustrative of a particular technique or school. 7) Images with iconic status or historical importance: As subjects of commentary. 8) Images that are themselves subject of commentary.
       Legal Code (full licence text): http://en.wikipedia.org/wiki/Fair_use
4. AllRightsReservedUsedWithoutPermission:
       All Rights Reserved. Non-free, copyrighted materials used without permission. The materials are used without permission of the copyright holder because the materials meet the legal criteria for Fair Use and/or because The Interaction Design Foundation has not been able to contact the copyright holder. The most common cases of Fair Use are: 1) Cover art: Cover art from various items, for identification only in the context of critical commentary of that item (not for identification without critical commentary). 2) Team and corporate logos: For identification. 3) Other promotional material: Posters, programs, billboards, ads: For critical commentary. 4) Film and television screen shots: For critical commentary and discussion of the cinema and television. 5) Screenshots from software products: For critical commentary. 6) Paintings and other works of visual art: For critical commentary, including images illustrative of a particular technique or school. 7) Images with iconic status or historical importance: As subjects of commentary. 8) Images that are themselves subject of commentary.
5. AllRightsReserved:
       All Rights Reserved. Materials used with permission. Permission to use has been granted exclusively to The Interaction Design Foundation and/or the author of the given work/chapter, in which the copyrighted material is used. This permission constitutes a non-transferable license and, as such, only applies to The Interaction Design Foundation. Therefore, no part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, recording or otherwise without prior written permission of the copyright holder.
6. CC-Att-1:
       Creative Commons Attribution 1.0 Unported
       Legal Code (full licence text): http://creativecommons.org/licenses/by/1.0/
7. CC-Att-3:
       Creative Commons Attribution 3.0 Unported
       Legal Code (full licence text): http://creativecommons.org/licenses/by/3.0/
8. CC-Att-2:
       Creative Commons Attribution 2.0 Unported
       Legal Code (full licence text): http://creativecommons.org/licenses/by/2.0/
9. CC-Att:
       Creative Commons Attribution 3.0 Unported
       Legal Code (full licence text): http://creativecommons.org/licenses/by/3.0/
10. CC-Att-ND-3:
        Creative Commons Attribution-NoDerivs 3.0 Unported
        Legal Code (full licence text): http://creativecommons.org/licenses/by-nd/3.0/
11. CC-Att-ND-2:
        Creative Commons Attribution-NoDerivs 2.0 Unported
        Legal Code (full licence text): http://creativecommons.org/licenses/by-nd/2.0/
12. CC-Att-ND-1:
        Creative Commons Attribution-NoDerivs 1.0 Unported
        Legal Code (full licence text): http://creativecommons.org/licenses/by-nd/1.0/
13. CC-Att-ND:
        Creative Commons Attribution-NoDerivs 3.0 Unported
        Legal Code (full licence text): http://creativecommons.org/licenses/by-nd/3.0/
14. CC-Att-SA-1:
        Creative Commons Attribution-ShareAlike 1.0 Unported
        Legal Code (full licence text): http://creativecommons.org/licenses/by-sa/1.0/
15. CC-Att-SA-3:
        Creative Commons Attribution-ShareAlike 3.0
        Legal Code (full licence text): http://creativecommons.org/licenses/by-sa/3.0/
16. CC-Att-SA-2:
        Creative Commons Attribution-ShareAlike 2.0 Unported
        Legal Code (full licence text): http://creativecommons.org/licenses/by-sa/2.0/
17. CC-Att-SA:
        Creative Commons Attribution-ShareAlike 3.0 Unported
        Legal Code (full licence text): http://creativecommons.org/licenses/by-sa/3.0/
18. Unknown:
        Copyright status unknown
19. Trademarks and logos:
        All trademarks, logos, service marks, collective marks, design rights, personality rights or similar rights that are mentioned, used or cited by The Interaction Design Foundation and its authors are the property of their respective owners. The use of any trademark in our materials does not vest in the author or The Interaction Design Foundation any trademark ownership rights in such trademarks, nor does the use of such trademarks imply any affiliation with or endorsement of The Interaction Design Foundation and its authors by such owners. As such The Interaction Design Foundation can not grant any rights to use any otherwise protected materials. Your use of any such or similar incorporeal property is at your own risk. Words which we have reason to believe constitute trademarks may or may not have been labelled as such. However, neither the presence nor absence of such labels should be regarded as affecting the legal status of any trademarks.

While most material produced by The Interaction Design Foundation is free to use under its respective license as outlined above, some materials may be subject to additional legal restrictions when they are used in particular circumstances or in particular ways. These limitations may arise from laws related to trademarks, patents, personality rights, political censorship, or any of many other legal causes which are entirely independent from the copyright status of the work. For example, if you use a public domain image (i.e. uncopyrighted) of an apple to sell computers, you will violate the trademark rights of Apple Computer, Inc.

In addition, content linked from a page/chapter/book (in the online versions) is not covered by one of our licenses unless specifically noted. For example, pages may link to videos or slide decks that are not covered. The design of Interaction-Design.org (graphics, html, client-side scripts, etc.) is copyright of Mads Soegaard.

These Site Terms and Conditions ("Terms") is a legally binding agreement made by and between The Interaction Design Foundation and you, personally and, if applicable, on behalf of the entity for whom you are using this web site or any of its services (collectively, "you"). These Terms govern your use of The Interaction Design Foundation's web site, www.interaction-design.org, and The Interaction Design Foundation's services so please read the following carefully.

By accessing or using any part of the web site, you agree that you have read, understand, and agree to be bound by this Terms. if you do not agree to be so bound, do not access or use the web site.

Internet technology and the applicable laws, rules, and regulations change frequently. Accordingly, The Interaction Design Foundation reserves the right to make changes to these Terms at any time. Your continued use of the web site constitutes assent to any new or modified provision of this Terms that may be posted on the web site.

These Terms addresses your legal rights and obligations and includes important disclaimers and choice of law and forum provisions.

1. Choice of Law and Forum Provisions (Governing Law)

Interaction-Design.org is run by The Interaction Design Foundation, a privately held corporation residing in Aarhus, Denmark. You agree that these Terms and your use of Interaction-Design.org and the materials produced by The Interaction Design Foundation are governed by the laws of Denmark. You hereby consent to the exclusive jurisdiction and venue of the courts, tribunals, agencies and other dispute resolution organizations in Denmark in all disputes

1. arising out of, relating to, or concerning Interaction-Design.org, The Interaction Design Foundation, and/or these Terms
2. in which Interaction-Design.org, The Interaction Design Foundation, and/or these Terms is an issue or a material fact
3. or in which Interaction-Design.org, The Interaction Design Foundation, and/or these Terms is referenced in a paper filed in a court, tribunal, agency or other dispute resolution organization.

The Interaction Design Foundation has endeavoured to comply with all legal requirements known to it in creating and maintaining Interaction-Design.org and The Interaction Design Foundation, but makes no representation that materials on Interaction-Design.org or produced by The Interaction Design Foundation are appropriate or available for use in any particular jurisdiction. You are responsible for compliance with applicable laws. Any use in contravention of this provision or any provision of these Terms is at your own risk and, if any part of these Terms is invalid or unenforceable under applicable law, the invalid or unenforceable provision will be deemed superseded by a valid, enforceable provision that most closely matches the intent of the original provision and the remainder of these Terms shall govern such use.

2. Liability

Your use of and browsing Interaction-Design.org is at your own risk. The Interaction Design Foundation does not warrant that the software used for Interaction-Design.org, and the information, material, and content on it, or any other services and materials provided by means of Interaction-Design.org or by The Interaction Design Foundation are error-free, or that their use will be uninterrupted. The Interaction Design Foundation expressly disclaims all warranties related to the above-mentioned subject matter, including, without limitation, those of accuracy, condition, merchantability and fitness for particular purpose. Notwithstanding anything to the contrary on Interaction-Design.org, in no event shall The Interaction Design Foundation be liable for any loss of profits, revenues, indirect, special, incidental, consequential, or other similar damages arising out of or in connection with Interaction-Design.org or out of the use of any of the services proposed by means of Interaction-Design.org.

3. Updates

Internet technology, publishing technology, and the applicable laws, rules, and regulations change frequently. Accordingly, The Interaction Design Foundation reserves the unilateral right to update, modify, change and alter its Site Terms and Conditions as well as Copyright Terms at any time. All such updates, modifications, changes and alterations are binding on all users and browsers of Interaction-Design.org, readers of electronic and non-eletronic versions of the publications produced by The Interaction Design Foundation. Such updates will be posted on Interaction-Design.org.

4. Legal Disclaimer

The Interaction Design Foundation and its authors make no representations as to accuracy, completeness, currentness, suitability, or validity of any information, material, or content on Interaction-Design.org.

THE MATERIAL AND CONTENT POSTED ON INTERACTION-DESIGN.ORG AND ANY CONTENT PROUDCED BY - OR PUBLISHED THROUGH THE INTERACTION DESIGN FOUNDATION ARE PROVIDED "AS IS" WITHOUT ANY EXPRESS WARRANTY OR IMPLIED WARRANTY OF ANY KIND INCLUDING WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT OF INTELLECTUAL PROPERTY, OR FITNESS FOR ANY PARTICULAR PURPOSE. IN NO EVENT SHALL THE INTERACTION DESIGN FOUNDATION BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, LOSS OF INFORMATION) ARISING OUT OF THE USE OF OR INABILITY TO USE THE MATERIALS, EVEN IF THE INTERACTION DESIGN FOUNDATION HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Because some jurisdictions prohibit the exclusion or limitation of liability for consequential and or incidental damages, the above limitation may not apply to you. Furthermore, The Interaction Design Foundation does not warrant the accuracy or completeness of information of links or other items contained within these materials that have been provided by third parties.

5. Provision regarding change in attribution of copyrighted materials

Please contact us at mads@interaction-design.org if you, or your organization, wish to correct or change attribution or presentation of any image/material used on Interaction-Design.org, which you, or your organization, are the rightful copyright holder of. We will request that you submit proof of your ownership of the copyright on this material but will act immediately on any reasonable request.

6. Notice and prodecure for claims of copyright infringement

Every effort has been made by the individual contributing authors as well as The Interaction Design Foundation to discover and contact copyright holders of artwork/illustrations/content used on Interaction-Design.org. To the extent that a copyright holder could not be found or an inadvertent permissions or copyright error was made, The Interaction Design Foundation stands ready to remove content upon notice and request by a copyright holder. In the case that you believe that any content or other material provided through Interaction-Design.org infringes your copyright, you should notify The Interaction Design Foundation of your infringement claim in accordance with the procedure set forth below.

We will process each notice of alleged infringement which The Interaction Design Foundation receives and take appropriate action in accordance with applicable intellectual property laws. A notification of claimed copyright infringement should be emailed to mads@interaction-design.org (subject: "Takedown Request"). You may also contact us by mail at:

The Interaction Design Foundation
Chr. Molbechs Vej 4
DK-8000 Aarhus C.
Denmark

To be effective, the notification must be in writing and contain the following information:

1. an electronic or physical signature of the copyright owner or the person authorized to act on behalf of the owner of the copyright interest
2. a description of the copyrighted work that you claim has been infringed
3. a description of where the material that you claim is infringing is located on Interaction-Design.org that is reasonably sufficient to enable us to identify and locate the material;
4. how The Interaction Design Foundation can contact you, such as your address, telephone number, and email address
5. a written statement by you that you have a good faith belief that the disputed use is not authorized by the copyright owner, its agent, or the law
6. if you represent a publisher, a written statement by you that you have a good faith belief that the material has not been placed in the public domain, or licenced under another licence, before you acquired the copyright as this would possibly invalidate your copyright
7. and a statement by you, made under penalty of perjury, that the above information in your notice is accurate and that you are the copyright owner or authorized to act on the copyright owner's behalf.

7. Trademarks and other rights

All trademarks, logos, service marks, collective marks, design rights, personality rights or similar rights that are mentioned, used or cited by The Interaction Design Foundation and its authors are the property of their respective owners. The use of any trademark in our materials does not vest in the author or The Interaction Design Foundation any trademark ownership rights in such trademarks, nor does the use of such trademarks imply any affiliation with or endorsement of The Interaction Design Foundation and its authors by such owners. As such The Interaction Design Foundation can not grant any rights to use any otherwise protected materials. Your use of any such or similar incorporeal property is at your own risk. Words which we have reason to believe constitute trademarks may or may not have been labelled as such. However, neither the presence nor absence of such labels should be regarded as affecting the legal status of any trademarks.

8. Screenshots

Screenshots of copyrighted computer software, for which the copyright is held by the author(s) or the company that created the software, is believed to fall under the fair use doctrine in the US (and similar laws in other countries). It is believed that reproduction for purposes such as criticism, comment, news reporting, teaching, or research is not copyright infringement. If you reuse screenshots, as well as any other information provided by The Interaction Design Foundation, you do so at your own risk and under the copyright laws of your country.

9. Copyright of Abstracts

Abstracts in the Wiki Bibliography (/references/) are submitted by their authors who use the wiki to make their research as accessible as possible. When a page on Interaction-Design.org cites/references/lists a work from the bibliography, its abstract is included. However, abstracts have varying copyrights depending which publisher the work is published through. You should assume that an abstract is copyright, all rights reserved, of its publisher and/or author and therefore always use/cite abstracts according to Fair Use. You may visit the publisher's website to learn about the specific copyright terms (e.g. ACM, IEEE, or Springer) or contact the author directly. Bottom line: Cite/use abstracts according to the principles of fair use as it may otherwise be construed as a copyright infringement and subject to legal action.

10. User Submissions / User Content

You understand and acknowledge that additions to the Wiki Bibliography (including article abstracts), additions the Conference Calendar (including conference descriptions), user-contributed notes on each page (including text, photographs, graphics), or other materials posted by users on Interaction-Design.org ("Content") are the sole responsibility of the person from whom such Content originated. This means that you, and not The Interaction Design Foundation, are entirely responsible for all Content that you upload, post or otherwise make available to other users of Interaction-Design.org.

When submitting content to Interaction-Design.org, you agree to not:

1. impersonate any person or entity or falsely state or otherwise misrepresent your affiliation with a person or entity;
2. upload, post or otherwise make available any Content that you do not have a right to make available under any law or under contractual or fiduciary relationships (such as inside information, proprietary and confidential information learned or disclosed as part of employment relationships or under nondisclosure agreements);
3. upload, post or otherwise make available any Content that infringes any patent, trademark, trade secret, copyright or other proprietary rights ("Rights") of any party;
4. upload, post or otherwise make available any Content that is unlawful, harmful, threatening, abusive, harassing, tortious, defamatory, vulgar, obscene, libelous, invasive of another's privacy, hateful, or racially, ethnically or otherwise objectionable;

You acknowledge that The Interaction Design Foundation shall have the right to remove any Content that violates these Site Terms and Conditions or is otherwise objectionable.

11. Third Party Websites

If we provide links or pointers to other websites, no inference or assumption should be made that The Interaction Design Foundation operates, controls, or is otherwise connected with these websites. When you click on a link within Interaction-Design.org, we will not warn you that you have left a Site and are subject to the terms and conditions (including privacy policies) of the destination website. In some cases it may be less obvious than others that you have left a Site and reached another website. Please be careful to read the terms of use and privacy policy of any website before you provide any confidential information or engage in any transactions. You should not rely on these Terms for another website. The Interaction Design Foundation is not responsible for the content or practices of any other website. By using Interaction-Design.org, you acknowledge and agree that The Interaction Design Foundation is not responsible or liable to you for any content or other materials hosted and served from any third party website.

12. Email communication: Confidential and proprietary information notice

Email messages sent from members of The Interaction Design Foundation, including emails generated from the use of the interaction-design.org website, are proprietary to The Interaction Design Foundation, and are intended solely for the use of the individual to whom they are addressed. Such messages may contain privileged or confidential information and should not be circulated or used for any purpose other than for what they are intended. If you receive a message from a member of The Interaction Design Foundation in error, please notify the sender immediately. If you are not the intended recipient, you are hereby notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of the message. The Interaction Design Foundation accepts no responsibility for loss or damage arising from the use of the information transmitted by email message including damage from virus.

13. Usage conditions

Please make sure that you understand that the information provided by The Interaction Design Foundation is being provided freely, and that no kind of agreement or contract is created between you and the owners, partners, users, or authors of this site, the owners of the servers upon which it is housed, the individual contributors of the The Interaction Design Foundation, any project administrators, sysops or anyone else who is in any way connected with this project. If you choose to use or copy anything from from this site it does not create or imply any contractual or extracontractual liability on the part of The Interaction Design Foundation or any of its members, partners, sponsors, contributors or other users. Your use of any such or similar incorporeal property is at your own risk.

14. Termination

The Interaction Design Foundation will have the right to terminate your access to the Web Site if it reasonably believes you have breached any of the terms and conditions of these Terms. Following termination, you will not be permitted to use the Web Site. If your access to the Web Site is terminated, The Interaction Design Foundation reserves the right to exercise whatever means it deems necessary to prevent unauthorized access to the Web Site, including, but not limited to, technological barriers, IP mapping, and direct contact with your Internet Service Provider. These Terms will survive indefinitely unless and until The Interaction Design Foundation chooses to terminate them, regardless of whether any account you open is terminated by you or The Interaction Design Foundation or if you have the right to access or use the Web Site.

15. Force Majeure, website downtime, and service outages

The Interaction Design Foundation will not be liable for failing to perform under these Terms because of any event beyond its reasonable control, including, without limitation, a labor disturbance, an Internet outage or interruption of service, a communications outage, failure by a service provider to The Interaction Design Foundation to perform, fire, terrorism, natural disaster, or war.

16. Limitation of Actions

You acknowledge and agree that, regardless of any statute or law to the contrary, any claim or cause of action you may have arising out of, relating to, or connected with your use of the Web Site, must be filed within one calendar year after such claim or cause of action arises, or forever be barred.

17. Payments

Online payment is accepted by Paypal. The Interaction Design Foundation does not process credit card payments directly or ever see, retain, or use your credit card information.

18. Taxes and VAT

In the name of Simplicity for our members/clients and the online User Experience, our prices always include VAT when applicable. The Interaction Design Foundation is based in Denmark so we pay 25% VAT of payments - depending on which originating country the member or customer is from.

19. Ownership of Interaction-Design.org, The Interaction Design Foundation, and its services

Interaction-Design.org is owned and operated by The Interaction Design Foundation, a privately held corporation incorporated under the laws of Denmark, with office in Aarhus, Denmark.

Address:
The Interaction Design Foundation
Chr. Molbechs Vej 4
DK-8000 Aarhus C.
Denmark

20. Changes to the Web Site

The Interaction Design Foundation may, in its sole discretion, change, modify, suspend, make improvements to, or discontinue any aspect of the Web Site, temporarily or permanently, at any time without notice to you, and The Interaction Design Foundation will not be liable for doing so.

21. Additional Terms

These Terms contain the entire understanding of you and The Interaction Design Foundation regarding the use of the Web Site and the services of The Interaction Design Foundation, and supersedes all prior and contemporaneous agreements and understandings between you and The Interaction Design Foundation relating thereto. These Terms will be binding upon each party hereto and its successors and permitted assigns. These Terms and all of your rights and obligations under them may not be assignable or transferable by you without the prior written consent of The Interaction Design Foundation. No failure or delay by a party in exercising any right, power, or privilege under these Terms will operate as a waiver thereof, nor will any single or partial exercise of any right, power or privilege preclude any other or further exercise thereof or the exercise of any other right, power, or privilege under these Terms. You and The Interaction Design Foundation are independent contractors, and no agency, partnership, joint venture, employee-employer relationship is intended or created by these Terms. The invalidity or unenforceability of any provision of these Terms will not affect the validity or enforceability of any other provision of these Terms, all of which will remain in full force and effect.

22. Legal Disputes

Any dispute arising from the use of Interaction-Design.org or the interpretation of the terms is governed by the laws of Denmark, and shall be settled by the courts of Denmark. All communications regarding legal matters must be made in writing to

The Interaction Design Foundation
Chr. Molbechs Vej 4
DK-8000 Aarhus C.
Denmark

1. Summary

The Interaction Design Foundation collects no more data about you than most other websites.

Any membership information you provide to us will be used by us in order to maintain a register of members and supply you with any goods and services you have requested from our web site.

Edits, comments, commentaries and other contributions are published, and except in very limited circumstances, will be a permanent part of this site. If you decide contribute, you must keep this in mind. Your contributions will be subject to the Site Terms and Conditions and our Site IP/Copyright policy.

Under "The Act on Processing of Personal Data", incorporated under Danish law, you may request a copy of the information we hold on you (for which we may charge a fee to offset our administration costs) by writing to us .

This privacy policy will be reviewed, and may be revised, from time to time. You may wish to revisit it regularly.

2. No selling of information

We do not share or sell email addresses, obtained via communication with visitors, with anyone. Neither will any identifying data be disclosed or sold to any third party for any purpose. Data we collect through logging visits to our site (orginating IP, referral data, browser and platform type, traffic flows, geographical area of request, etc.) is only used in an aggregated form, which means we will not make any effort to identify users of Interaction-Design.org. The data is only used for server administration, fault finding, site improvement, etc. - as is done on most websites.

Aggregate (and thus completely non-identifying) statistics generated from these logs may be reported as part of research results or may be published on this site as a curiosity.

3. Cookies

Our sites may use cookies. This is often as a convenience for you to enable certain site features.

You may wish to clear these cookies and the browser cache if you wish to refrain from revealing any identifying information, especially if you are using a public or shared computer. You may also wish to disable your browser from accepting cookies.

4. Private logging

Any time you visit a page on the internet, you send quite a bit of information to the server. The webservers that host this site maintain access logs with the information that you send. This information is used to provide site statistics and to get an idea of popular pages and what sites link here. We do not intend to use these logs to identify legitimate users.

The data logged may be used by us to solve technical problems with the site and, in cases of abuse of this site, to investigate the abuse.

We also use web analytics services to get a general idea of the kinds of traffic our websites get in order to provide better services and to set benchmarks for how we are doing in meeting the OKFN’s goals.

Again, if you are concerned about attempts to match your IP address to your identity, you may wish to use an anonymous browsing service or attempt some means to obfuscate your real IP address.

5. Data release policy

Our policy is only to release the data we collect in the following circumstances:

• As required by law, such as in response to a valid request from law enforcement.
• To designated third parties to resolve or investigate abuse complaints.
• When the information is related to spiders or bots, usually when investigating technical issues.
• For abusive users, we may release information to assist in attempting to block the abusive user or to complain to that user’s Internet Service Provider.
• If necessary to defend legal claims against us by third parties.
• When we deem it necessary to protect the property or rights of the user community, or this website.

6. Public data and publishing

Browsing this site doesn't reveal your identity publicly, though see Private Logging later in this document for more information.

7. Author identification

When making contributions to this site (e.g. posting a comment, commentaries, editing a page in the wiki, etc), a name and email address may be required. You do not have to select your real name or use your regular email address. If you are concerned, you may wish to get a free email account or attempt to use a remail service.

Your activity on our website may be identified by your IP address. These numbers could potentially be traceable to identifying information about you, whether it is your home ISP or the University or Work account where the IP address is registered. Your IP address could potentially be used in conjunction with other data to identify you.

If you are concerned about attempts to match your IP address to your identity, you may wish to use an anonymous browsing service or attempt some means to obfuscate your real IP address.

If so, you might like to try Tor, an anonymous browsing service.

8. Information security

We make no guarantee that the information that you provide us will be secure.