All of the following subjects have already received attention in the design and implementation of LegendBurster's Ontology Editor, and some (hetero-inheritance and Attribute hierarchies) have been utilitsed in the implementation of LegendBurster's sister product, MineMatch.
None of these, however, is currently supported in LegendBurster. Any users of LegendBurster who would like to utilise these features are requested to contact Georeference Online Ltd.
Slots are attributes of entities that exist in a value domain, and they may have default values. For example, the "granite" entity which exists in the "rocks" value domain may have a slot "Calcium level" which has a default value of 3.4%.
The "Manage Slots" tab exposes the controls necessary to create and delete slots.
The "Set Slot Values" tab exposes the controls necessary for maintaining slot values. (See description of slots above.)
In a semantic network (i.e. hetero-hierarchy), sometimes information captured in a particular level in the network can be propagated/inherited to other levels of the network. This kind of inheritance is called hetero-inheritance. In order for the system to determine how and when information stored at different levels can be inherited, the ontology designer must define inheritance rules in the system. This is possible using the LegendBurster Ontology Editor, but is not a supported feature at this time. Parties interested in utilising this feature of LegendBurster are requested to contact Georeference Online Ltd.
Hierarchical relationships may also exist between attributes (as discussed in "Appendix 3: Query Scoring Methods"). Currently these are managed by hard-coding them into Ontology Editor applications (such as MineMatch). In a future version of LegendBurster, the creation of attribute hierarchies will be under the control of the user through a user interface.
This tab provides a graphical summary view of the ontology.