A model for flexibly editing CSCL scripts

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Abstract

This article presents a model whose primary concern and design rationale is to offer users (teachers) with basic ICT skills an intuitive, easy, and flexible way of editing scripts. The proposal is based on relating an end-user representation as a table and a machine model as a tree. The table-tree model introduces structural expressiveness and semantics that are limited but straightforward and intuitive. This approach is less expressive and introduces less semantics than approaches based on workflow representations and complex meta-models. However, it may be enhanced to represent complex features such as by-intention grouping mechanisms, constraint checking or configuration of enactment frameworks. A usability test suggests that the model/interface is easy to use and that teachers avail themselves of the flexibility available to model scripts according to their perspectives.