Improving GISBuilder with runtime product preview

Software product lines allow users with little development experience to configure and generate applications. On the web this approach is becoming more and more popular due to the low time required to bring a new release to the final users. The architecture of web applications though require complex development environments in order to allow users to test and evaluate a new configuration. In this work we present a novel approach, based on in-browser generation and emulation techniques, which can be applied to real-world state of the art software product lines, reducing test deployment complexity and enabling an agile development cycle.