Data Description Phase › Steps of the Data Description Phase

Steps of the Data Description Phase

The data description phase of transparency implementation is a planning and preparatory phase. It involves the following four steps:

1. Selecting a Total database for conversion
2. Preparing Total DDL statements that describe the Total database
3. Preparing the statements that describe the logical CA IDMS/DB database
4. Preparing the CA IDMS DDL statements that describe the physical CA IDMS/DB database

Generator Input

Later, during the database conversion phase, the statements you've prepared, the skeleton loader module (ETOTLOAD), and the skeleton runtime control table (ETOTTBL) are input to the generator. The generator uses this information to produce CA IDMS/DB schema and subschema descriptions and to produce both a customized loader and a customized runtime control table.