The screen below shows the basic layout of FRAMES 2.0 and the terminology you will see throughout the tutorial. A "module" is represented by an icon and is a grouping of software code, interface, and related files that represent a real-world component. Modules are grouped to visually represent a conceptual model of the problem. In an environmental risk assessment, such a conceptual model is called the Conceptual Site Model (CSM). The Global Workspace is a portion of the CSM that is reserved for data sources which you would like accessable to multiple modules. For example, a database of constituent information containing information such as decay half-life could be made accessible to multiple modules by being placed in the Global Workspace, thereby avoiding the need to draw several lines linking the constituent data source to each module directly.
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