By mapping the high level processes on the Application Landscape the Business Analyst gets a good view on the applications in scope and the way they are related to each other.

It helps to identify duplicate functionality if a process is run on more than one application. This could indicate an improvement opportunity. It helps to identify duplicate storage (central, decentral) of information. This also could indicate an improvement opportunity. These steps also help to identify whether the scope is chosen correctly. Business requirements, constraints and non-functional criteria, for interfacing with applications found during this activity which are not already documented in the Business Requirements Catalogue are processed.