MEGA Architecture on HOPEX > First Steps in MEGA Architecture on HOPEX > Using Diagram in HOPEX IT Architecture > Creating org-units
Creating org-units
*An org-unit represents a person or a group of persons that intervenes in the enterprise business processes or information system An org-unit can be internal or external to the enterprise. An internal org-unit is an organizational element of enterprise structure such as a management, department, or job function. It is defined at a level depending on the degree of detail to be provided on the organization (see org-unit type). Example: financial management, sales management, marketing department, account manager. An external org-unit is an external entity that exchanges flows with the enterprise. Example: customer, supplier, government office.
To create an org-unit with MEGA Architecture on HOPEX:
1. In the diagram objects toolbar, click Org-unit .
*When you click an icon in the diagram object bar (except the selection icon), its definition appears in the help window displayed by default at the bottom of the diagram.
2. Click in the diagram where you want the org-unit to appear.
The dialog box for creating an org-unit opens.
3. In the Add a(n) Org-Unit dialog box, enter the name of the org-unit you want to create.
4. Click Create.
The org-unit appears in your diagram.
5. If necessary, resize the form so that the text fits.
An org-unit can also can be placed in a swimlane to improve diagram graphical presentation.
Internal org-unit/external entity 
During creation, org-units are considered as elements internal to the company.
To specify that an org-unit is not part of the company, you must modify the org-unit properties and enter the "External org-Unit" status.
To assign the "External Entity" characteristic to the org-unit:
1. Right-click the org-unit and select Properties.
2. From the Characteristics tab, click in the Internal/External field and select "External entity" value.
3. Click on OK to apply the update and close the properties dialog box.
This characteristic is represented graphically and is automatically displayed in the diagram. When you close the properties dialog box of the “Boat Renting Agency” org-unit, its color changes.
*MEGA Architecture on HOPEX manages the characteristics of each object and these vary as a function of its type. These characteristics can be modified in the Characteristics tab of the properties dialog box of each object.
*The characteristics of the different objects handled in MEGA Architecture on HOPEX are described in "Concepts managed by HOPEX IT Architecture", page 139.