Information Modeling the EXPRESS Way

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Oxford University Press, Jan 6, 1994 - Computers - 416 pages
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Information modeling technology--the open representation of information for database and other computing applications--has grown significantly in recent years as the need for universal systems of information coding has steadily increased. EXPRESS is a particularly successful ISO International Standard language family for object-flavored information modeling. This cogent introduction to EXPRESS provides numerous, detailed examples of the language family's applicability to a diverse range of endeavors, including mechanical engineering, petroleum exploration, stock exchange asset management, and the human genome project. The book also examines the history, practicalities, and implications of information modeling in general, and considers the vagaries of normal language that necessitate precise communication methods. This first-ever guide to information modeling and EXPRESS offers invaluable advice based on years of practical experience. It will be the introduction that students as well as information and data modeling professionals have been waiting for.

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The EXPRESS Language
EXPRESS example model
Example model instance
Interpreting supertype relationships
Relationships and cardinality
An EXPRESS Metamodel

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Page xxvii - When I use a word," Humpty Dumpty said, in rather a scornful tone, "it means just what I choose it to mean — neither more nor less." "The question is," said Alice, "whether you can make words mean so many different things.
Page 6 - Factual information (as measurements or statistics) used as a basis for reasoning, discussion, or calculation.
Page 5 - Examinations are formidable even to the best prepared ; for the greatest fool may ask more than the wisest man can answer.

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