Building a Data Model
Data models are available with the following profiles:
• HOPEX Data Governance: Data Designer and Data Governance Functional Administrator
• HOPEX Data Architecture: Data Architect and Functional Data Administrator
Prerequisites
To use the Data model notation, you must select the corresponding option:
1. On the desktop, click Main Menu > Settings > Options.
2. In the options navigation tree, expand the HOPEX Solutions > Data folder.
3. Click Data Formalism.
4. In the right-hand side of the window, select the Data models notation.
5. Click OK.
Creating a Data Model
To create a data model in HOPEX Data Governance:
1. Click the Architecture navigation menu then Data Models.
In HOPEX Data Architecture, click Data Models.2. In the edit area, display the list of Data Models.
3. Click the New button.
4. In the dialog box that appears, enter the name of the data model, and an owner if necessary.
5. Click OK.
The data model created appears in the list of data models.
Creating a Data Diagram
A data diagram is a graphical representation of a model or of part of a model.
A data diagram is represented by:
• Entities, which represent the basic concepts (customer, account, product, etc.).
• Associations, which define the relationships between the different entities.
• Attributes, which describe the characteristics of entities and, in certain cases, of associations.
The attribute or set of attributes that enables unique identification of an entity is called an identifier.
The data diagram also contains multiplicity definitions.
To create a data diagram:
1. Move the mouse over the data model and click the Create a Diagram 
button on the right.
button on the right.2. Select the Data Structure diagram type.
The diagram opens.
Datatypes
A type is used to group characteristics shared by several attributes.
When you create a data model, the "Datatype Reference" datatype package is automatically connected with it by default. The list of datatypes it contains is available on each attribute of entities of the model. You can however assign to it another datatype package.
The reference datatype package of a data model is displayed in the properties dialog box of the model, in the Characteristics tab.
See also Datatype Packages.