Domains #

Domains serve for another standardisation of a development. In this case, they ensure that all data types are the same for the same purpose, e.g. amount precision is always (19,2) and the columns containing balances are always of domain named Balance.

Definition #

The definition of domains is a matrix:

• X axis contain technologies
• Y axis contain domain names

This matrix can be used for systems with different technologies or for a system that will be migrated to a different technology in the future.

User defines a data type for each used domain and technology. It is not necessary to define data types for not used technologies.