The document discusses integrating loosely coupled systems using a service-oriented architecture (SOA) approach. It proposes a generalized model to integrate various data sources related to a student admission process. The model uses SOA and web services to integrate student application, merit list generation, admission, and banking modules without changing their underlying business logic. This allows retrieving a student's application status, checking if they are on the merit list, assessing financial status, and recommending an education loan from compared banking options if needed. The integrated system provides a single interface to get information previously spread across different platforms and applications.