Around the world complex enterprises are being undertaken in distributed and even virtual environments. Processes, services, infrastructure and so forth must be developed to address these major projects. This article presents an information-technology-based heuristic model to help the enterprises’ integrators in their new responsibilities and duties. This IT-based model conveys to a taxonomy to manage the coordination and transaction among all the partners of a major project, addressing a new discipline named enterprise engineering. This is an issue challenging most companies in the world, as new ways of operating these complex enterprises are being undertaken worldwide by most integrators. The search for a new model is therefore demanded by most of the international companies. Hence, this article intends to present an heuristic model that is able to integrate productive processes, services and information technologies among the players through a huge network of coordination. Conclusions are presented at the end of this article.