![]() Musical scores can be purchased from music stores. Addresses can be added to an address book. Specify what can happen in this domain − The domain model is static you have to make it dynamic. ![]() This is equivalent to modeling a database structure to keep the entities and their relationship. So here you have to figure out what's in it, what entities exist in this universe and how the items in it relate to each other. The domain may be a music store, a university, a dating service, an address book, or a hardware inventory. When you set out to write a Rails application, leaving aside the configuration and other housekeeping chores, you have to perform three primary tasks −ĭescribe and model your application's domain − The domain is the universe of your application. ![]() When you use a framework, your job is to write the parts of the application that make it do the specific things you want. A framework is a program, set of programs, and/or code library that writes most of your application for you.
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