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FCAView Protégé Tab Plugin Manual

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We use an example project that is downloadable to explain how to use the FCAView Tab plug-in. After opening the example project, you would see the following.

Protégé Classes tab.Image Modified

We assume that the instances (i.e. the formal objects) of a class in Protégé-2000, together with its own slots (i.e. the formal attributes), could form a formal context that would interest the users. In particular, two kinds of formal context can be formed:

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The following figure shows the instances of the class FamilyMember: father, mother, daughter and son.

Protégé Instances tab.Image Modified

Clicking the FCAView Tab, you would see the following.

Protégé FCAView tab.Image Modified

At first, you have to select a class (here, e.g. FamilyMember) in a class browser in left panel. And then you click the button Show Context at the bottom of left panel.

Then you would see a dialog panel as follows.

Protégé FCAView tab and Select Attribute Type dialog box.Image Modified

In this dialog panel, you have two selections for attributes type. One is for the Slots with Boolean Type, and one is the Slots with Multiple Instance Type.

By selecting the first one and clicking button OK, you would see another dialog panel as follows. You could select the attributes indicating the name of slots with Boolean type in this dialog panel.

Protégé FCAView tab and Select Attributes dialog box with Boolean attributes.Image Modified

By selecting the second one and clicking button OK, you would see another dialog panel as follows. You could select the attributes indicating the name of slots with Multiple Instance type in this dialog panel.

Protégé FCAView tab and Select Attributes dialog box with Multiple instance attributes.Image Modified

After making the selection and clicking the button Confirm, you would see that a formal context is formed as a cross table as follows.

Protégé FCAView tab with cross table. Image Modified

By clicking the fifth button above the cross table (Build Lattice), you would see a lattice diagram of the formal context as follows.

Protégé FCAView tab with lattice diagram. Image Modified

In the current step, we think we only developed a basic model for two common cases. Several advanced models have been proposed and are under active development.

Any questions, please contact Guoqian Jiang (Jiang.Guoqian@mayo.edu) or Harold R. Solbrig (Solbrig.Harold@mayo.edu) at Division of Biomedical Informatics, Mayo Clinic, Rochester, MN.
May 12, 2006

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