Description logic updates

View the stated or the inferred form of the ontology

The application can now be set to operate in authoring and browsing mode.

A new toggle button has been added that switches between authoring (stated) and browsing (inferred) views. The selected view is applied throughout the entire application.

Authoring mode: Authoring is permitted when the lock is unlocked

Browsing mode: Authoring is not permitted when the lock is locked

In the SNOMED CT navigator, the stated view displays the tree based on the manually authored stated relationships. The inferred view displays all hierarchical relationships that were calculated by the classifier, meaning that concepts may appear under more specific parents in the hierarchy. By toggling this button the user can review the the outcome of the classification process and its impact on the parent-child relationships.

By changing between the two different modes the SNOMED CT concept editor switches to display stated and additional characteristic types by selecting authoring mode or to displaying inferred characteristic types by selecting browsing mode. When authoring mode is selected, the editor allows modifications on the concept by enabling the addition of both sanctioned and unsanctioned attributes. The attribute editing fields are powered by the machine readable concept model (MRCM), where for any particular concept domain, various attribute and concrete domain constraints are specified. The editing is not limited to these attributes only, as the user can always deviate from the model if necessary. When selecting to create a new concept, the mode automatically switches to authoring mode.

The concept editor in Authoring (stated) mode

The concept editor in Browsing (inferred) mode

After the editing is completed, it is recommended to classify the concept to complete modeling. Filtering the editor to the inferred characteristic type displays all attributes that were calculated by the classifier. Additional attributes can also be selected for display per user preference.

Highlight fully defined concepts

The concept navigator now indicates fully defined concepts in bold font. This simplifies authoring using proximal primitive supertypes, which is being increasingly used within the IHTSDO to model content. It also makes identifying incompletely modeled content easily, without having to open the concept in the editor. Concepts can be quickly bookmarked from the tree view to create a worklist for concept definitions to be completed. The same visual indication of the definition status is available in the Parents view as well. A toggle button in the navigator toolbar allows switching this feature on or off.

Fully defined concepts are indicated in bold font

In addition to the SNOMED CT navigator and the Parents view, a definition status column has been added to Search results view to indicate whether a concept is fully defined or primitive by browsing the results of an ESCG or advanced search query.