An application product can never provide competitive advantage by itself, it is a function of how and how much is implemented. A good implementation of a commodity software product can give you a short-term advantage until the competition catches up.
how we can create dfd
varies greatly. For comparing how much of a product is implemented, we can define three categories of applications, core processes, planning, and analysis. Core processes A company's core processes are the transaction or business process driven applications. These do the basic execution task and housekeeping, for example, order processing, inventory, shipping, accounts payable, etc. A business cannot survive without doing these functions. When a company replaces a system or implements its first system,