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## GREAT-ER and ARCVIEW

As GREAT-ER is a software system set on top of the GIS ARCVIEW, it is fundamentally necessary to familiarise yourself with the basics of ARCVIEW terminology and functions. It would exceed the limitations of this tutorial to explain all the ARCVIEW-specific terms used below. This is especially the case for all the ARCVIEW features used to create a user-specific presentation of data. The following list provides an overview of the section about ARCVIEWwhich we strongly recommend reading before going on with the GREAT-ER tutorial.

The ARCVIEW handbook gives some tutorials about how to use the basic functions of ARCVIEW. To obtain further information on the keywords, start the on-line help and read some of the chapters given there. The on-line help can be found in the same program group as ARCVIEW. Select the contents:

- Introduction to ArcView - Familiarise yourself with the very basics of ARCVIEW, the different types of data, so-called Documents (Docs).

- Creating and using maps - Read the direct answers and the basics of views which display maps and are therefore the central item of the GREAT-ER user interface.

  The sections on Displaying a view and Choosing colors and symbols are also of importance. Both contain information on how to work with views and to modify the presentation of maps and data.

These basics are sufficient to understand the terminology used in this tutorial and to run simulations with GREAT-ER. If you intend to print or export maps to include simulation results in other documents or papers, you should read the chapter on Laying out and printing maps. The chapter in the ARCVIEW handbook with the same name is also helpful.

You should also know the basic user interface parts of ARCVIEW (Menu Bar, Button Bar, Tool Bar) and Windows in general.

If you wish to become more familiar with ARCVIEW, you should start to wade through all the examples in the ARCVIEW tutorial. This, however, is not required to work with GREAT-ER.

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