CATAI: Cooperative Algorithm and Data Types Animation over the Internet

In this paper we present Catai (for Concurrent Algorithms and data Types Animation over the Internet), an algorithm animation distributed system. Catai adopts an object-oriented animation approach that allows a programmer with an algorithmic background to transparently and efficiently animate a target algorithm. Multiple users can simultaneously watch and interact with a same animation made with Catai using a light-weighted Java animation client. We believe this to be a good compromise between two different viewpoints: the programmer's perspective, which typically includes the goal of animating efficiently and unobtrusively a given algorithmic code, and the user's perspective, which can benefit from interactive, easy-to-use, distributed and cooperative interfaces.