In an Application Fact Sheet you can add the Business Capabilities that are supported by this Application.
When you add a Business Capability in the Application Fact Sheet you can choose the Support Type that can be "Supports" or "Leading". Some reports require at least one leading entry when multiple Business Capabilities are associated. Only one Business Capability can be "Leading". This is the Business Capability where the cost is associated to in the report Business Capability Cost, for example.