Chapter 7 Explore Entities and Their Relationships
Things. Your software uses things, depends on things, and manages things. It lets users create, update, and delete things. Things are the reason your software exists.
What are these things? Anything. They could be things common to just about any system, such as user accounts or reports or messages. They could be things specific to the domain in which you are working, such as invoices for accounting systems, items in inventory systems, nodes in network management systems, or friends in social networks.
These things are nouns, as discussed in Nouns and Verbs . They’re also known as entities, a term that has deep roots in structured analysis and design.
In this chapter you will learn ...
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