Modelling the "Planet Game" Case Study with LDL and Implementing it with LDI

LDL (Learning Design Language) is an educational modelling language which was designed to model collaborative activities. This paper details the solution proposed to address, with LDL and the associated infrastructure LDI, the two steps presented in the workshop "Comparing Educational Modelling Languages on a case study". The modelling of the case study is described in detail. Its "operationalisation" and execution are illustrated with videos. The second step is addressed in conclusion. Editors: Laurence Vignollet (Universite de Savoie, France). Interactive elements: Embedded in this article are QuickTime movies of the demonstration of the operationalization and execution of the case study (see section 3). To view them, you will require Apple's QuickTime plug-in for your browser, or the player.