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Quaestor can be used in three ways, depending on your personal requirements and user license. See user See user levels documentation for documentation for more detail:
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The software can be purchased with an annual, non-exclusive, non-transferable, user license.
A demo version of Quaestor is available for free. This version provides full user rights up to 100 frames per knowledge base (i.e. 100 parameters, relations and constraints in total).
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Quaestor systems can be used in two levels:
In addition you have a development level:
Knowledge engineer: A “Knowledge engineer” (KE) has full rights to develop and maintain knowledge bases. Knowledge bases protected by other knowledge engineers can still only be used as Domain expert or End user.
For more details see also: User levels and rights
These articles give more insight and show the power of Quaestor.