1. GSC Associates Misc. Presentations Steve Carson GSC Associates for JTC 1/SC 24 WG 8 Palm Springs, CA USA August 2001

2. GSC Associates Groups for discussion A -- most general comments B -- PAB IHO, FACC refinements C -- GSC country code refinements (in UK comments) D -- comments on definitions of abstract sets E -- comments that just change or add EG assignments F -- GSC comments on structured definitions G -- other new and revised definitions (some select ones need to be pulled out as there are some overlapping comments) - comments on the main body text - the comments on table entries that overlap or that might be controversial - editorial comments

3. GSC Associates Religions – how current enumerants map Buddhist xxxx Christian xxxx Greek Orthodox Judaism xxxx Moslem  Islam xxxx Protestant Roman Catholic Shinto xxxx

4. GSC Associates Concepts and definitions ConceptDefinition Set of instances extension intension

5. GSC Associates Suggestions for NR and QR If the EDCS definition is intended to represent the same concept as a definition from an external reference, then we can make a NR to that definition. If the EDCS definition is derived from but does NOT represent the same concept as the external definition then we can make a QR to that definition. Example: A_OR_B mapping to A and to B separately

6. GSC Associates When are two definitions “the same”? A light silvery ductile and malleable metal, not readily tarnished by air, which is a chemical element, atomic no. 13 (Symbol Al) - The New Shorter Oxford English Dictionary A silvery-white, ductile metallic element, the most abundant in the earth's crust but found only in combination, chiefly in bauxite. Having good conductive and thermal properties, it is used to form many hard, light, corrosion-resistant alloys. Atomic number 13; atomic weight 26.98; melting point 660.2°C; boiling point 2,467°C; specific gravity 2.69; valence 3. - The American Heritage® Dictionary of the English Language, Fourth Edition A lightweight silvery metal used either pure or as an alloy for making utensils or fittings where lightness is an advantage. - Oxford American Dictionary A silvery light and malleable metal, not tarnished by air. - The Pocket Oxford Dictionary A silvery lightweight metal, that is a chemical element. It does not rust. - Webster's New World Dictionary for Young Reader Consider these definitions of aluminum:

7. GSC Associates When are two definitions “the same”? The five definitions of aluminum on the previous slide all are intensions of the same concept. Therefore, all five definitions are “the same” in the sense that the set of (object) instances that satisfy each definition (that is, the extensions of the concepts) are the same. So, two definitions are the same if the set of objects that satisfy each of them is the same.

8. GSC Associates Minor changes to definitions A change in definition A to create definition B is minor if A and B are intensions of the same concept. It is difficult to give a complete specification of minor changes, but such changes include: –replacement of words by synonyms –changes in grammar or sentence structure that do not change meaning.

9. GSC Associates References require: Word for word copy Minor changes Same concept Formal agreement Authoritative Reference maybe yes Normative Reference maybe yesno Qualified Reference no maybe Informative Reference maybe