Overview of Logical Data
In HOPEX Information Architecture, access to logical data in the repository is reserved for the Data architect.
Data Dictionary
A data dictionary collects and holds a set of logical data, and provides them with a namespace.
The data dictionary therefore participates in the organization of data in the HOPEX repository.
Data Model
When you choose to work with the "Datamodel" formalism, business dictionaries are represented by data models (not packages).
See "Data Modeling Options".
For more details on creating and updating a data model, see "The data model", page 133.
Example
The data model of the "Purchase Request Automation" project is presented below.
The application manages purchase requests, orders and product stock levels in each of the representation offices.
A centralized catalog of products and suppliers is installed.
Contracts with referenced suppliers are also accessible from the application.
Logical Data Map
A logical data map represents the data areas of a data dictionary and their dependency links.
See The Logical Data Map.
Logical Data Area
A data area represents a restricted data structure dedicated to the description of a software Data Store. It is made of classes and/or data views and can be described in a Data Area Diagram.
For more details, see Logical and Application Data Areas.
To address these specific use cases, you can create Data Views in which you can see and modify the scope covered by the classes.
Logical Data View
From the perimeter of an object in a data dictionary or a data area, a logical data view allows you to define a set of information for a specific use. See Logical data views.