Sally Shlaer Quotes

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While a small domain (consisting of fifty or fewer objects) can generally be analyzed as a unit, large domains must be partitioned to make the analysis a manageable task. To make such a partitioning, we take advantage of the fact that objects on an information model tend to fall into clusters: groups of objects that are interconnected with one another by many relationships. By contrast, relatively few relationships connect objects in different clusters.
When partitioning a domain, we divide the information model so that the clusters remain intact... Each section of the information model then becomes a separate subsystem. Note that when the information model is partitioned into subsystems, each object is assigned to exactly one subsystem.

Sally Shlaer

An object in OOA represents a single typical but unspecified instance of something in the real world - any airplane, I don't care which one, as long as it is typical. The object-oriented analyst distinguishes this concept from that of a specified instance: Airplane number N2713A, Air Force One, or The Spirit of St. Louis, for example.

Sally Shlaer

Sally Shlaer

Sally Shlaer

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Born: December 3, 1938

Died: November 12, 1998 (aged 59)

Bio: Sally Shlaer was an American mathematician, software engineer and methodologist, known as co-developer of the 1980s Shlaer Mellor method for software development.

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