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In the larger area of the Frame Viewer, a reference can be assigned to the parameter. A proper reference is important, as users of the knowledgebase may not be certain of the exact meaning of the parameter. Please also read Documentation of knowledge for more details.

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This qualification can be provided in the Slots & Properties window.

 Select the parameter LPP. In the Slots & Properties window, scroll down to the Determined by row. Change the value to VR: User only, as the parameter LPP is input (instead of defined by a relation), see figure 5.

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In order to define the loading capacity of the ship, it’s important to know the kind of water (Salt or Fresh) the ship will sail in. Therefore, we will add some relationsrelation and constraints, and make sure the user can select the watertype.

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The two relations for the density of the water are only valid for their corresponding watertype. Therefore, a constraint is added to each relation. A constraint is simply a restriction for the validity of the relation.

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The constraint is now added, and a parameter named Watertype$ has been created. The $ at the end of the parameter name makes sure Quaestor recognizes it as a String value, and the dimension Str is automatically assigned (see also Quaestor syntax. We have to assign a determined by value to make it a valid parameter.

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Calculations and solutions are managed in the workbaseWorkbase. Here, solutions can be created, redone (with different data), examined and deleted. 

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