A domain is a named set of values. Its main application in computing science is as a specification of the possible values of variable, or—what amounts to the same—as a constraint for an attribute in a database. Defining a domain for a set of values is essential in many computer programs. It ensures that incorrect data are left out, and is often used as a tool to validate data. A domain set cannot contain different types of variables.

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dbpprop:abstract
  • A domain is a named set of values. Its main application in computing science is as a specification of the possible values of variable, or—what amounts to the same—as a constraint for an attribute in a database. Defining a domain for a set of values is essential in many computer programs. It ensures that incorrect data are left out, and is often used as a tool to validate data. A domain set cannot contain different types of variables. Thus, for instance, it cannot contain some integer values and some string values. Example of code fragments that define domain sets: int odd[5] = {1, 3, 5, 7, 9}; String members[4] = {"Jason", "Mary", "Bob", "Andrew"}; int ageRange[80]; for i = 1 to 80 ageRange[i] = i;
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rdfs:comment
  • A domain is a named set of values. Its main application in computing science is as a specification of the possible values of variable, or—what amounts to the same—as a constraint for an attribute in a database. Defining a domain for a set of values is essential in many computer programs. It ensures that incorrect data are left out, and is often used as a tool to validate data. A domain set cannot contain different types of variables.
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  • Set domain
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