1) In the reference you site..."A class is the descriptor for a set"...
2) Earlier, you stated that "semantics of a class as denoting a set of instances." I believe these two statements represent the "apples" and "oranges" you referenced: Statement 1) is the traditional "a class describes the attributes and associations for a concept that are common to a set of instances." Statement 2) is better described by your population example. [VK] I believe these are apples and oranges: (1) describes the "structure, behavior and relationships" of classes and typically focuses on the structure of the class. (2) describes the "semantics of a class" I think this is the major cause of confusion. The focus of RIM classes had primarily been structure and not semantics, at least based on the descriptions I have read so far. Also, it is (1) doesn't necessarily => (2). One possibility is that we revisit the all the RIM definitions and try to characterize them from a model or set theoretic perspective? ---Vipul --- The information transmitted in this electronic communication is intended only for the person or entity to whom it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this information in error, please contact the Compliance HelpLine at 800-856-1983 and properly dispose of this information.