Describing Application System Components
Creating an application system structure diagram
An application system structure diagram describes the internal structure of an application system:
• services offered or required
• processes handled, components and interactions
• end users interacting with the application components
The following diagram describes the application system corresponding to purchasing requests processing.
The following diagram describes the application system corresponding to purchasing requests processing.
To create an application system structure diagram with MEGA Windows Front-End:
1. Right-click the application system and select New > Diagram.
2. In the window that opens, select "Application System Structure Diagram", confirm that the Diagram initialization check box is selected, and click Create.
The diagram window appears. You are now in the HOPEX graphic editor.
To create an application system structure diagram with Web Front-End:
Right-click the application system and select
New > Application System Structure Diagram.
Creating an application system use
To describe that an application system implements another application system, you will:
• create a component of Application System Use type
• associate the application system implemented with it.
The use of a logical application system describes the role of a logical application system in a composition relationship with a parent application system or in a logical application system environment.
For example, the purchasing requests processing system uses the "Purchasing Management Platform" and "Payment Management" applications system services.
To create an application system use:
1. In the application system structure diagram insert toolbar, click
Application System Use.
2. Click in the frame of the described application system.
A creation dialog box asks you to select the application system use. This is the application system implemented (for example "Payment Management").
3. Select an existing application system, or create a new application system.
4. Click Finish.
The application system use appears in the diagram.
Creating an application component
To describe that an application system implements an application, you will:
• Creating an application component
• associate with this component the application implemented.
An application service component represents the fact that the application system used plays a role in the described application.
A local data store represents a data store used only inside the system described.
To create an Application Component:
1. In the application system structure diagram insert toolbar, click
Application Component and click in the frame of the application system described.
A creation dialog box asks you to select an Application Used.
2. Select an existing application or create a new one.
3. Click OK.
The application component appears in the diagram.
Creating an end user
To specify that an application system, such as purchasing request processing, is activated by internal or external org-units, you will:
• create a component of end user type
• associate an org-unit with it, for example "Purchasing Assistant".
The end user represents an organizational unit interacting at the boundaries of an application system or a logical application system.
To create an end user:
1. In the application system structure diagram insert toolbar, click
End User and click in the frame of the diagram.
A creation dialog box asks you to select the involved organizational resource.
2. Select the org-unit that interests you and click OK.
