Using Contextual Implementations

If the input data needed for invoking an implementation is too specific and cannot be supplied outside of the component, then the implementation must be associated with the component's context. For example, terms such as case status, order creation date, and case description cannot be resolved from components other than those in which they are present.

Terms that have different implementations depending upon their contexts will have an implementation associated with a specific context. For example, the term Revenue for a customer / segment / segment group is computed based on the context from which it originates. The implementation specific to the customer context calculates the revenue value from that customer. The implementation specific to a segment context calculates the revenue value generated from all the customers belonging to that segment, and so on for each segment group.