what are the Tools/Methodologies to categorise/Implement business rules in .net?
In the book "Wisdom of the Gurus" in Business Rules chapter by James J. Odell the fact that most of times business rules are actually by product of how a system should behave has been mentioned. My Question is how is one to reformulate the business rules that expressed in natural language to Object Behaviour by implementing them using Events and Methods? For example the rule: Do not take new order from customers that have more than 3 outstanding invoices, following combinations for implementation come to mind : 1.Implement some checking in the AccpetOrder method of Order class 2.Implement some checking in the AddOrder method of Customer class n. Implement some checking in the X method of Y class. A.In the Order.BeforeAcceptNewOrder event do the checking and revoke further processing using the BeforeAcceptNewOrderEventArg B.In the X.BeforeY event do the checking and revoke further processing using the BeforeYEventArg. 4.Some other behavioral modification using Events, so the interaction of objects can change dynamically ( as opposed to hard coding business rules ). There are just too many combinations / degrees of freedom in translating business rules into implementation, but surely by now a more holistic has come to being, anyone knows where or how to find them ? Regards Arjang
