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Project question 3 - Alloy entities

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From: Arran S.
Date: Mon 25th May 2020, 11:18am
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I was asked:

> In the alloy section, are we to make assumptions on when certain things exist as well 
as relationships?

For this question, you *must* declare entities to represent contracts, formulas, and 
trading organizations.

You *may* declare other entities if you need to.

You shouldn't need to assume the existence of any entities, though - if you think you 
need to, try simplifying what you're modelling.

Remember that a model doesn't need to incorporate *every* detail of the original - just 
enough to adequately model the relations between things. If you think you need some 
datatype we haven't covered - ask yourself whether a simpler data-type would do instead.

Hopefully that helps.

cheers

Arran
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