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Managing Time in Relational Databases by Randall Weis, Tom Johnston

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3. The Origins of Asserted Versioning
Computer Science Research
Contents
The Roots of Asserted Versioning51
Computer Science Research54
Clocks and Clock Ticks55
Time Periods and Date Pairs56
The Very Concept of Bi-Temporality63
Allen Relationships65
Advanced Indexing Strategies68
Temporal Extensions to SQL69
Glossary References72
We begin this chapter with an overview of the three sources of Asserted Versioning: computer science work on temporal data; best practices in the IT profession related to versioning; and original work by the authors themselves. We then spend the rest of this chapter discussing computer science contributions to temporal data management, and the relevance of some of these concepts to Asserted Versioning.
The Roots of Asserted ...

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