17.10 - Activity Transaction Modeling - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Database Design

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
July 2021
Language
English (United States)
Last Update
2021-07-27
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In this phase, which Teradata refers to as Activity Transaction Modeling, you begin to attach physical attributes to the entities, attributes, and relationships defined in the logical data model. The ATM process performs the following activities:
  • Identifies the business rules of the enterprise that apply to the information to be stored in the data warehouse
  • Initiates the process of identifying and defining attribute domains and constraints for physical columns
  • Identifies and models database applications
  • Identifies and models application transactions
  • Summarizes table and join accesses by column across transactions
  • Compiles a preliminary set of data demographics by computing table cardinalities, value distributions, and attaching change ratings to columns

This information is compiled and used as input to the physical design process.

For more information, see The Activity Transaction Modeling Process.