Interactive web application development teams include non-computer experts working on conceptual modeling and implementation of non-functional aspects of software applications. This conceptual information is then processed by Analysts and Software Engineersanalysts and software engineers to carry through the technical phases of the software project. However, this transfer of information is often difficult to automate since the information processed by those professionals involves different abstraction levels, implying higher cost and effort to consider in the software project. The main aim of this research is to minimize these problems by increasing automation and interoperability while developing interactive web applications. To do so, we have created a CASE tool, called InterArch, which aims at bridging the gap between the conceptual definitions of contents in a web application and the UML analysis and design elements required by Software Engineers to carry out project-based activities during the rest of the development process. To carry out this task, InterArch enables the Information Architect to model web content by means of an environment highlighting an authoring visual language. Such model is then automatically translated into a textual UML representation, called XMI, to be further used by analysts and software engineers