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Rudi Lutz

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Publication statistics

Pub. period:2002-2007
Pub. count:6
Number of co-authors:4

Co-authors

Number of publications with 3 favourite co-authors:

Richard Cox:6
Benedict Du Boulay:6
Pablo Romero:6

Productive colleagues

Rudi Lutz's 3 most productive colleagues in number of publications:

Benedict Du Boulay:16
Pablo Romero:14
Richard Cox:14

Calendar

May 22

Knowing (by) Designing 2013

May 27

13th Intl. Conf. on New Interfaces for Musical Expression

May 28

Graphics Interface 2013

May 20

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Publications by Rudi Lutz (bibliography)

2007

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Romero, Pablo, Boulay, Benedict Du, Cox, Richard, Lutz, Rudi and Bryant, Sallyann (2007): Debugging strategies and tactics in a multi-representation software environment. In International Journal of Human-Computer Studies, 65 (12) pp. 992-1009.

“Abstract This paper investigates the interplay between high level debugging strategies and low level tactics in the context of a multi-representation software development environment (SDE). It investigates three questions. 1. How do programmers integrate debugging strategies and tactics when working with SDEs? 2. What is the relationship between verbal ability, level of graphical literacy and debugging (task) performance. 3. How do modality and perspective influence debugging strategy and deployment of tactics? The paper extends the work of Katz and Anderson [1988. Debugging: an analysis of bug location strategies. Human-Computer Interaction 3, 359-399] and others in terms of identifying high level debugging strategies, in this case when working with SDEs. It also describes how programmers of different backgrounds and degrees of experience make differential use of the multiple sources of information typically available in a software debugging environment. Individual difference measures considered among the participants were their programming experience and their knowledge of external representation formalisms. The debugging environment enabled the participants, computer science students, to view the execution of a program in steps and provided them with concurrently displayed, adjacent, multiple and linked programming representations. These representations comprised the program code, two visualisations of the program and its output. The two visualisations of the program were available, in either a largely textual format or a largely graphical format so as to track interactions between experience and low level mode-specific tactics, for example. The results suggest that (i) additionally to deploying debugging strategies similar to those reported in the literature, participants also employed a strategy specific to SDEs, following execution, (ii) verbal ability was not correlated with debugging performance, (iii) knowledge of external representation formalisms was as important as programming experience to succeed in the debugging task, and (iv) participants with greater experience of both programming and external representation formalisms, unlike the less experienced, were able to modify their debugging strategies and tactics effectively when working under different format conditions (i.e. when working with either largely graphical or largely textual visualisations) in order to maintain their high debugging accuracy level.”

2004

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Cox, Richard, Romero, Pablo, Boulay, Benedict Du and Lutz, Rudi (2004): A Cognitive Processing Perspective on Student Programmers' 'Graphicacy'. In: Blackwell, Alan, Marriott, Kim and Shimojima, Atsushi (eds.) Diagrams 2004 - Diagrammatic Representation and Inference - Third International Conference March 22-24, 2004, Cambridge, UK. pp. 344-346.

2003

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Romero, Pablo, Boulay, Benedict Du, Lutz, Rudi and Cox, Richard (2003): The effects of graphical and textual visualisations in multi-representational debugging environments. In: HCC 2003 - IEEE Symposium on Human Centric Computing Languages and Environments 28-31 October, 2003, Auckland, New Zealand. pp. 236-238.

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Romero, Pablo, Cox, Richard, Boulay, Benedict Du and Lutz, Rudi (2003): A survey of external representations employed in object-oriented programming environments. In J. Vis. Lang. Comput., 14 (5) pp. 387-419.

2002

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Romero, Pablo, Cox, Richard, Boulay, Benedict Du and Lutz, Rudi (2002): Visual Attention and Representation Switching During Java Program Debugging: A Study Using the Restricted Focus Viewer. In: Hegarty, Mary, Meyer, Bernd and Narayanan, N. Hari (eds.) Diagrams 2002 - Diagrammatic Representation and Inference - Second International Conference April 18-20, 2002, Callaway Gardens, GA, USA. pp. 221-235.

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Romero, Pablo, Lutz, Rudi, Cox, Richard and Boulay, Benedict Du (2002): Co-Ordination of Multiple External Representations during Java Program Debugging. In: HCC 2002 - IEEE CS International Symposium on Human-Centric Computing Languages and Environments 3-6 September, 2002, Arlington, VA, USA. pp. 207-.

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