Jelsim Builder is a tool for the rapid production of interactive simulations (Jelsims). These can be rapidly produced and easily deployed to the web, intranet or online learning course through a standard browser as a Java applet.

Previously, simulations were expensive to produce, bespoke programmes whose code could not be re-used. The unique JeLSIM software separates the behavioural model from the visualisation so that the model can be re-used and adapted according to the purpose or standard of user experience.

Creating interactive simulations (Jelsims) for e-learning programmes is easy with the JeLSIM software tools:
1. By separating the behavioural model that drives the eSim from the visualisation, there is greater scope for re-use: saving valuable development resource and speeding up the production process.
2. Jelsim Builder encourages the members of the development team to concentrate on their own area of expertise - programmers create the behavioural model, educators create the visualisation.
3. Visualisations can easily be tailored to better match the users' needs, without having to adapt the behavioural model - the teacher is empowered.
4. The Jelsims are created as Java applets and can be seamlessly integrated into web pages, and stored as learning objects in content repositories or Learning Content Management Systems.
5. Jelsims form the interactive part of web delivered courseware.

The license of this software is Freeware, you can free download and free use this presentation software.