Many case studies that are online. One of my favorites with personas specifically is that with a redesign, Forrester found you can get a four times return on investment four times, which is a statistic that you want to keep in your back pocket. Now, bear in mind that personas made from field data, not just cooked up internally. There's a huge difference on where data comes from, inside out or outside in.
Right. And it's hard to do empathy when you don't have an outside in perspective. So we're framing why reframing has become very popular in organizations 50% more accurate estimation of build time and cost. And these are some studies with wireframes. 80% reduced request for clarification from the dev team. Right. So the dev team knows that they're building two. I've had this happen so many times.
Dev teams are like, Wow, great. Here's the user interface specification and, and it's not going to change as much as the business analysts who are classic or notorious for changing requirements all the way up to dev and during dev. Right. That's never happened before. Just kidding. 25% reduced rework and bugfixes post-launch. So wire framing is a good mitigation. You know, it's just very quick sketch test solution.
Don't have to wait for it to be designed and go through the whole formality. Right now, the third technique in the UCD process, so user centered design, field studies, wire framing, you know, interaction design and usability testing. There's a great study from MacAfee that they had a 90% drop in support costs. Basically, people stopped calling because why should you call in just to manage your antivirus software? That should be intuitive, right?
And so they found in usability testing that there were some major blockers for people understanding what to do, how to manage it. And they fixed those and the phone stopped ringing. The support phones, good business result.