The MoProSoft Integral Tool, or HIM for its name in Spanish, is a Web-designed system to support monitoring the MoProSoft, a software process model defined as part of a strategy to encourage the software industry in Mexico. The HIM-assistant, is a system added to the HIM, which main objectives are to give a guide for the automated use of the MoProSoft and improve the aid provided to the HIM users. To reach these objectives, elements from software engineering along with two areas of artificial intelligence, multiagent systems and case based reasoning, were applied to develop the HIM-assistant. The task involved the HIM-assistant analysis and design phases using the MESSAGE methodology, as well as the development of the system and the performance of tests. The major importance of the work lies on the integration of different areas to fulfill the objectives, using existing progress instead of developing a totally new solution.