Features

Concept model supported editing

When a new relationship is added, values for the attribute type and the target concept are classified either as Sanctioned or as Unsanctioned. Sanctioned means that those values are valid based on the Machine Readable Concept Model (MRCM), while Unsanctioned values are invalid based on MRCM rules.

Sanctioned and Unsanctioned Values

The international version of Snow Owl ships with SNOMED International's concept model

• SNOMED CT Concept Model
• Concept Model Attributes

However, this concept model is incomplete which means that many valid SNOMED CT concepts may be reported as violating their own model. Hence, these violations are indicated as warnings rather than errors.

That's also why we allow entering descriptions and properties that are not permitted (Unsanctioned) by the current concept model.

Warning due to Invalid Relationship as per MRCM rules

Bookmarking

Clicking the Add bookmark button in the upper right corner of the editor will bookmark the concept, while clicking it again will remove the bookmark from it.

Bookmarked concepts can be viewed by activating the Bookmarks View.

Editing

The icons on the right side of the sections allow you to make changes to the concept. They perform the following actions:

Descriptions

• Add description

Properties

• Add property
• Add property group
• Add data type property (pressing the down arrow different data types can be selected)

Axiom Properties

• Add new OWL relationship
• Add new OWL relationship group
• Add new OWL relationship with value

Tooltips

Hovering over one of the descriptions will reveal a tooltip with additional details. This feature is also available in the properties section.

SNOMED CT Description Tooltip

Error message display

Error-, warning-, and information-type messages are displayed at the top of the concept editor.

Hovering over the hyperlink will display the messages.

Error Message Displayed

Unpublished changes

Unpublished changes are indicated at the top of the concept editor with an information message.

SNOMED CT Concept Editor with Unpublished Synonym

In case of unpublished changes for descriptions, a box around the description type is also displayed. Once a version is created, the box disappears and only a simple text is displayed, meaning the value cannot be modified anymore.

For more information about versioning please refer to the chapter in the Client Reference.

Creating a New Version