When the Analyst selects the icon to display the new data icon on the workstation , the ExamFolder program must start a computer program that presents the data to the Analyst. To determine the correct program to start, the ExamFolder program has a table which correlates each data document type to the required computer presentation program (see Figure 4). In practice, determining the data document type can use several methods, including:

• Some part of the file name
• Special codes placed in the data

As the presentation program is initiated, it is given the file name of the data document to be presented.

X Window System(X)

When the presentation program is initiated, it need not run locally on the Analyst's workstation. The correlation table also gives the name of the workstation where the presentation program can be run. Programs written to use the X Window System can run on one workstation and present data on another. Using ExamFolder and X, the Analyst uses exactly the same gestures to start the program and interact with it whether it runs locally on the same workstation or remotely on a different workstation. Remote execution in combination with X allows virtually any hardware/software network.