EA - MEGA Architecture on HOPEX > Modeling Enterprise Architecture > Modeling Technical Infrastructures
Modeling Technical Infrastructures
Principles of handling Technical Infrastructure Diagrams are similar to those described above.
TIDs allow you to identify and represent hardware items (such as servers and workstations), and to indicate their characteristics (such as operating systems, processor speed, memory and hard disk capacity). The networks that connect these machines are documented in terms of topology, protocol and data transfer rate.
These diagrams indicate the machines hosting databases and applications.
Example: Headquarters TID
The Voyages & Vacations IS department has designed a TID for the corporate headquarters.
This diagram shows the computers found at headquarters, in particular the workstations on the 1st floor (administrative) and the 2nd floor (where sales are consolidated).
These two LANs are interconnected.
The server on the 2nd floor manages communications with the agencies and representation offices.
 
Objects handled in a Technical Infrastructure Diagram are:
• sites
• servers
• applications
• databases
• workstations
• networks
• network nodes
 
You can customize your diagram. See the MEGA Common Features guide, chapter "Handling Objects in Diagrams" to:
• modify the shape of an object
*The shape used for certain objects, such as messages, varies according to the type assigned to them. Example: when creating a node, you are asked to select one of the following types: "Satellite", "Printer", "Hub", "Modem", "Router" and "Bridge". Similarly, after creating a network, you can specify its type in the characteristics tab of its properties dialog box.
• display object characteristics
You can for example choose to display the number of workstations available for a type of org-unit (example: "Accountant").
*These values can be modified in the Characteristics tab of the Properties dialog box of the object.
It can be of interest to configure the characteristics of other objects, for example networks, for which you can display topology, protocol and transmission flow.
• modify text field positions (MEGA Windows Front-End).