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Domain of interest #3

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Domain of interest #3

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29b24e3
Add a working definition of domain
trycatcher Mar 25, 2019
04c56a9
Elaborate on objects
trycatcher Mar 25, 2019
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5 changes: 5 additions & 0 deletions domain/DOMAIN.md
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## What is the "domain"? What is a "model"?

- Domain modeling is the modeling of a domain of interest. Not a canonical, overarching domain but a subset
you are interested in. E.g. a seat can have numbers in a context that mandates assigned seating e.g. flight bookings
but not in another which does not e.g. watching a music concert; the domains differ even though they are dealing with
the same object i.e. seat. The domains differ because the contexts differ.
- why have a model?
- why prefer Value Objects?
- how does good OOP mirror FP (or vice-versa)?
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- how is good OOP different from FP?
- prefer fine-grained abstraction pushed to "leaf nodes" of the object hierarchy
- avoid highly generic constructs
- objects are better thought of as Procedural Data Abstraction i.e. late-bound behavioral specialization triggered by receipt of a message through its public API. This is why it inter-object communication message needs to be as emphasized as the objects themselves.
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Can you elaborate on late-bound behavioral specialization?


- [tbd - domain-v-model.jpg]

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