# AI Context for bonniejohn

## Profile
- Name: bonniejohn
- About me: I am interested in techniques to improve the design and implementation of computer systems with respect to their usefulness and usability. To that end, I have investigated the effectiveness and usability of several HCI techniques \(e.g., think\-aloud usability studies, Cognitive Walkthrough, GOMS\) and produced new techniques for bringing usability concerns to the design process \(e.g., CPM\-GOMS and software architecture evaluation for usability\). Much of my work focuses on cognitive modeling, where I work within a unified theory of cognition to develop models of human performance that produce quantitative predictions of performance with less effort than prototyping and user testing. I also work on bridging the gap between HCI and software engineering, specifically including usability concerns in software architecture design.

Prior to joining IBM Research in December 2010, I was a Professor in the Human\-Computer Interaction Institute in the School of Computer Science at Carnegie Mellon University for two decades.

## Online Presence
\[Gravatar Profile\]: [gravatar.com/bonniejohn](https://gravatar.com/bonniejohn)