Wednesday, June 3, 2026

MEANING: IT’S NOT IN THE NAMES!

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Note: In MEANING AND THE DATA MODEL I mentioned a recent LinkedIn exchange that prompted that post. It also reminded me of an older post,...
Saturday, May 30, 2026

PAPER REV. 2: PRIMARY KEYS - A NEW UNDERSTANDING

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    Table of Contents Introduction 1. Entities, Properties, Names, and Identifiability 2. Relational Representation 3. Kinds of ...
Friday, May 22, 2026

MEANING AND THE DATA MODEL

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 Recently I participated in a LinkedIn exchange initiated by the following statement:   “First-Order Predicate Logic is quietly breakin...
Wednesday, April 22, 2026

PAPER REV. 2: RELATIONAL DATABASE DOMAINS

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  Table of Contents   Introduction 1 Data Types 1.1 Abstract Data Types 2 Database Domains 2.1 Domain Adaptations 2.1.1 Attribut...
Tuesday, March 10, 2026

LOGICAL DESIGN: INTERPRETATION OF RDM SYMBOLIZED SETS

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As we explain in Logical Database Design (forthcoming), LDD assigns the meaning of terms in conceptual models (CMs)—properties, entities, g...
Sunday, March 1, 2026

SEMANTICS, DATABASE RELATIONS, AND TABLES

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    This was said years ago:  ” Table (n.) – a collection of information (data?) describing a population of entities which possess some comm...
Sunday, February 15, 2026

FACTS, ENTITIES, AND BUSINESS RULES

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“... In ORM there is no concept of an entity record (tuple), although relational tables can be automatically generated from an ORM model (...