2 Physical Model Customization

This chapter provides general information about customizing the physical model of Oracle Communications Data Model and more detailed information about customizing the foundation layer of the physical model.

• Characteristics of the Default Physical Model
  The default physical model of Oracle Communications Data Model defines tables, KPIs, data mining models, and OLAP cubes.
• Implementation Steps for Oracle Communications Data Model
  Oracle Communications Data Model follows the traditional implementation steps of a usual data warehouse or BI project with some exceptions with respect to the Analysis and Development Phase.
• Feed Data to the Foundation Layer of Oracle Communications Data Model
  There are several ways to feed the foundation layer depending on the use case and based on the strategy chosen.
• Customizing the Oracle Communications Data Model Physical Model
  The starting point for the Oracle Communications Data Model physical data model is the 3NF logical data model.
• Foundation Layer Customization
  The first step in customizing the physical model of Oracle Communications Data Model is customizing the foundation layer of the physical data model.
• General Recommendations When Designing Physical Structures
  The ocdm_sys schema delivered with Oracle Communications Data Model was designed and defined following best practices for data access and performance. Continue to use these practices when you add new physical objects.