Little is known about the specific kinds of questions programmers ask when evolving a code
base and how well existing tools support those questions. To better support the activity of …

We present an approach to support the debugging of stochastic system models using
interactive visualization. The goal of this work is to facilitate the identification of causal …

Data structure visualization can increase program understanding in an educational context
and help with visual debugging. Existing data structure visualization tools are limited in …

Program understanding accounts for the bulk of software development work Unfortunately,
little is known about why it is so difficult. To investigate this problem, multiple developer …

This article is a review of the pedagogical experience obtained with systems for algorithmic
animation. Algorithms consist of a sequence of operations whose effect on data structures …