Type - Aggregate / Compound type

Card Puncher Data Processing


An aggregate/compound type is a type that contains a list of element. It represents the notion of value set in data modeling.

They are most known as Collection (array,…)

A aggregate type create a aggregation relationship between the container and its elements.

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Card Puncher Data Processing
Data Type - Complex Data Type

A complex data type is a data type that shows a structure. All complex data type are based on a class concept. They are complex because they shows a structure primitive A complex data type is created...
1..*1Professor+ listOfStudents : listClass+ Students : list
Logical Data Modeling - Aggregation (Collection)

aggregation is a containment relationship where one or more entities are part of a container entity. In other word, aggregation is combining multiple pieces of data into one unit. The container entity...
Data System Architecture
Logical Data Modeling - Value Set

A value set is a set of value from the same attribute. A value set is known as: a column in a relational model a variable in statistics. a collection in code (aggregate/compound type) a vector...

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