Sunday, April 28, 2019

Understanding Data Modeling Part 3: OO/UML, and "Graph Data Models"

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In Part 1 we presented some foundation knowledge with which to debunk misconceptions lurking in the industry's "data modeling...
Saturday, April 20, 2019

Understanding Data Modeling Part 2: "E/RM" and "RDM"

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In Part 1 we presented some foundation knowledge with which to debunk misconceptions lurking in the industry's modeling mess that Frie...
Sunday, April 14, 2019

Understanding Data Modeling Part 1: Models, Models Everywhere, Nor Any Time to Think

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“... I needed to know what the constituent parts of data models really are. Across the board, all platforms, all models etc. Is there anyt...
Wednesday, March 27, 2019

Graph Databases: They Who Forget the Past...

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Out of the plethora of misconceptions common in the industry[ 1 ], quite a few are squeezed into this paragraph: “The relational database...
Saturday, March 9, 2019

Fourth Order Properties Part 2: Association Relations in Database Design - An Example

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Part 1 outlined fundamentals of fourth order properties (4OP) of a multigroup arising from relationships among its group members due to 1:...
Saturday, March 2, 2019

Fourth Order Properties Part 1: Association Relations vs. Foreign Keys

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  “We have Building, Room, and Bed entities. Logically, if this is in the scope of some hypothetical hotel, then each one of those entitie...
Saturday, February 16, 2019

Class, Type, Set, Relvar, and Relation

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Note: This is a rewrite of a part of an older post (now redirecting here), to bring into line with McGoveran's formalization, re-inter...