Physical vrs Informational Natural vrs Artificial Real vrs Imaginary Composite vrs Characteristic Individual vrs Collective Atomic vrs Mediating Specific vrs Indefinite Continuant vrs Occurrent
Not many discriminants can be found which are simultaneously orthogonal (independent of one another) and general (can be applied to anything) and useful (easy to clearly define and decide). The listing above may in fact be nearly complete (although many would debate its specifics or suggest other candidates). Regardless of the particulars, I suggest that a better semantic model for your "layer 0" would be all and only those discriminants which have all three qualities - independence, generality, and utility - and hence can be employed to help define any class or instance desired. [VK] Thanks, Dan! This is a very good guideline and framework to work from. Cheers, ---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.