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In addition to the dynamic nature of software while executing, this dynamism extends to the evolution of the software's code itself. The software's evolution is often captured in its entirety by revision-control systems (such as CVS, Subversion, and Git). By utilizing this rich artifact, as well as other historical artifacts (e.g., bug-tracking systems and mailing lists), we can offer a number of techniques for recommending future actions to developers.

Project Dates: 
August 2011

Literature about design suggests that a variety of alternatives leads to a higher quality final design. When software designers, either individually or together, are designing in front of the whiteboard, they rarely explore different solution alternatives. How can we help designers to explore more design alternatives for software problems? To achieve this, we are working on a process to facilitate designers to collaborate and produce high quality software designs while considering more solution alternatives.

Research Area(s): 
Project Dates: 
April 2015

Collaboration is becoming ubiquitious; at the same time the emergence of new technologies have been changing the landscape of interaction and collaboration. I am interested in the effect that information technologies have on collaboration and the development of new organizational practices such as network-centricity, group-to-group collaboration, nomadic work, and large-scale collaboration. I am also very interested in how Web 2.0 technologies (blogs, wikis, social-networking sites, etc.) are used in collaboration and how they can be integrated into the course of daily work. 

Research Area(s): 
Project Dates: 
January 2002

One of the most difficult tasks in debugging software for a developer is to understand the nature of the fault. Techniques have been proposed by researchers that can help *locate* the fault, but mostly neglected is a way to describe the nature of the fault. We are developing software models, visualizations, and techniques to aid in the diagnosis of the faults in the software.

Research Area(s): 
Project Dates: 
August 2011

The dynamic nature of markets wherein business relationships are established and dissolved continuously demands systems that can cope with constant change, and do so with security paramount. These relationships are reified as services  that are offered by organizations and used  within a spectrum of domains and use contexts. Current service technologies fail to meet the requirements, however; interfaces are rigid, non-secure, and “one-size-fits-all solutions” which hardly meet the demands of any of its users.

Project Dates: 
July 2007

Given the availability of large-scale source-code repositories, there have been a large number of applications for clone detection. Unfortunately, despite a decade of active research, there is a marked lack in clone detectors that scale to large software repositories. In particular for detecting near-miss clones where significant editing activities may take place in the cloned code.

Project Dates: 
January 2014

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