The STEM Editor allows you to construct a picture of the telecoms network or fragment that you want to model. Each element within the model – e.g., service demand and the resources to satisfy that demand – is created from the toolbar and then represented as an icon in a view window.
Sample model loaded in the STEM Model Editor
Each element has a number of associated dialogs, accessed from a pop-up menu on the icon, which allow you to enter and review data for that element. Dialogs for data which affects the whole model (global data) are accessed from the main Data menu or from a pop-up menu on the view window. From this information, the demand, installed capacities, costs, revenues and other financial results associated with the model are calculated for each year of the model run.
Relationships and dependencies between model elements can be defined directly by dragging between the corresponding icons. These links are then indicated by different coloured lines between the icons. In addition to these automatic links, you can add manual links to illustrate relationships outside the model.
The extent of a view is not limited by the size of the actual view window. In order to access elements which lie outside the current window:
- use the scroll bars at the right and bottom of the view window, or
-
click and drag the rectangle within the zoom window, which represents the position of the visible window relative to the full extent of the view (see 4.3.1 Moving around within a view), or
- use the general purpose zoom function (see 4.3.2 Zoom functionality).