Next: Set-up Up: Installation Previous: Installation

## Requirements

GREAT-ER is a collection of models and scripts set on top of the geographic information system (GIS) ARCVIEW a product developed by the Environmental Systems Research Institute (ESRI). The development was based on the software package ARCVIEW 3.0 with the patch for version 3.0a for Windows NT. GREAT-ER is also compatible with the new version ARCVIEW 3.1.

The operating system GREAT-ER is designed for is WINDOWS NT 4.0. Please note that GREAT-ER will not work properly under WINDOWS 95, although ARCVIEW 3.x does. The reasons for this are some basic incompatible techniques in executing models and analysis tools which are not available under WINDOWS 95. Executability under WINDOWS 98 was not tested.

To conclude: You need WINDOWS NT 4.0 and ARCVIEW 3.0a or 3.1 to work with GREAT-ER.

The GREAT-ER system contains a set of scripts for ARCVIEW, models and other programs for data analysis. It comes with a set of data for selected regions needed for the simulations and additional information. The installation requires a minimum free disk space of approximately 50 MB.

Next: Set-up Up: Installation Previous: Installation