I am using .net framework 1.1.

I am having an application which is pluggable to other applications. In
this application there are some state transitions defining based on the
business rules. As business rules are specific to the main application.
This pluggable application provides an interface where the main
application and this application understands. The business rules are
defined in the .Net DLL in the main application with Some classes and
some methods.

Ex: Approval.Dll

In this DLL i am having ApprovalRules class with methods

CheckUnitStock(int unitValue,float stock)

CheckUnitValue(float stock,bool isStockCalculated,int unitValue)

etc.......

i have approval mechanism in the pluggable application. I will specify
in an XML which DLL have to use and what is the class in the DLL to
configure the business rules (like CheckUnitStock,CheckUnitValue
etc...). These methods should be published to the pluggable application
in this format

CheckUnitStock($UnitValue$,$Stock$)...

This is just a publisher which the user will understands. So really it
nothing but giving some publisher text for the Methods to make user
understand what they are doing....