Developing software is one of the most cognitively challenging activities for humans. The majority of current tools in this domain are based on traditional user interface concepts and do not yet incorporate more modern interaction forms that may reduce mental load and increase joy of use. This works aims to examine how multimodal and natural interaction methods can be applied to common software engineering tasks such as code reviews and refactoring. A new support system for collaborative code reviews on interactive tabletops is currently being prototyped and will be evaluated in a user study. The review environment and workflow are outlined in this paper. Furthermore, it is briefly described how natural refactoring tools can be designed and integrated into future versions of the system.

This paper describes a case study of assessing student's coding behavior and skills in a realistic development setting. Students had to solve typical programming problems in the context of app development for the Android platform using the Eclipse IDE. Data was analyzed using IDE as well as browser interaction logs. In addition, screen recordings of the students' interaction with the IDE provide further insight. In this paper we present the first results of our ongoing work.

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Interaction design of user-centered refactoring toolsRefactoring describes the practice of restructuring software without changing its external behaviour. One major goal is to keep the functionality of software while improving its code structure and style. Usually, refactoring by hand is very error-prone, so adequate software tools are needed. This article describes the state of the art of refactoring tools. Furthermore, it shows how the interaction design of such tools can be improved using usercentered evaluation and design methods.

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