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Attribute
A characteristic defined for a class. Attributes are used to maintain the state of the object of a class. Values can be connected to objects via the attributes of the class. Typically, the connected value is determined by an operation with a single parameter identifying the object. Attributes implement the properties of a type. A column within a table of a relational database.
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An object is highly cohesive if it can perform a task with little or no help from other objects. Highly cohesive objects are not as dependent on other objects as objects with lower cohesion. Objects with higher cohesion are often better. Highly cohesive objects perform tasks alone and have low coupling.
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The international standard language for defining and accessing a relational database. The standard language used by relational databases to enter and extract the information stored in them.
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A database that consists of tables that contain a set of related records. In a relational database, data is organized in twodimensional tables or relations.
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MAC is a means of restricting access to data based on varying degrees of security requirements for information contained in the objects. A policybased means of restricting access to objects based on the sensitivity (as represented by a label) of the information contained in the objects and the formal authorization (access control privileges) of subjects to access information of such sensitivity. Means of restricting access to objects based on the sensitivity of the information contained in the objects and the formal authorization (i. e. , clearance, formal access approvals, and needtoknow) of subjects to access information of such sensitivity. (. See discretionary access control. )
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An implementation of an abstract data type. A definition of the data structures, methods, and interface of software objects. A template for the instantiation (creation) of software objects. In the context of object-oriented programming terminology and techniques, a collection of common methods from a set of objects that defines the behavior of those objects.
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