1. A modular prescriptive architecture for a user of a business process to obtain reusable services in a system, said reusable services being composed into service oriented multiple processes and composite solutions on web-application, said prescriptive architecture comprising: a plurality of tiers selectively including a client tier; a presentation tier; a business logic tier; an integration tier; a data tier; and an infrastructure service layer designed across and interacting with said plurality of tiers.