Chapter 1 : Core Business System
Core Business System description requires 3 concepts:
Business Entity
An Entity represents an Object of the real world.
An Entity has an identifier which allows recognizing the different instances of the same Entity.
Examples: Person, Customer, Product, Contract, Account, Operation …
Business Process
A Business Process is a sequence of Business Functions triggered by a single Business Event for a unique Business objective and for a main Business Process Customer.
A Business Process is always defined by a verb + a Business Entity (+ a complement).
Example: Create a Product, Subscribe a Contract, Pay a Bill, …
Business Function
A Function is an Action which brings Business "Value" in a Business Process.
Example: check data entry, compute price, send message to Customer.
A Business Function can de decomposed into other Business Functions.
Example: Check validity of input data, compute price, send a message to Customer…