Changes between Version 1 and Version 2 of ISO15926HowTo_Principles_ReferenceData
- Timestamp:
- 12/06/09 23:09:29 (14 years ago)
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ISO15926HowTo_Principles_ReferenceData
v1 v2 17 17 ---- 18 18 19 == Reference Data 19 == Reference Data == 20 20 21 21 It appropriate at this point to bring in another idea, Reference Data. When you have to relate abstractions between two representations, you really need a third. (You can say that one of the representations is the abstract one, but usually leads to compromises you shouldn’t make.) You need a third that truly abstracts the two representations. If you increase the number of representations, it forces you to generalize that abstraction to cover all possible representations.