Subclass of:

• crm:E1 CRM Entity

Superclass of:

• crm:E54 Dimension
• crm:E92 Spacetime Volume
• crm:E52 Time-Span
• crm:E53 Place

Scope note:

This class comprises positions or regions in an abstract, conceptual space defined by a conventionally defined reference system, such as for measuring time, space, colors, ranges of values, etc. As such, the classes crm:E52 Time-span, crm:E53 Place, crm:E54 Dimension are all abstract regions in the sense of indicating a region or position in a reference system (a date in a calendar, geocoordinates, a value in a measuring system).
This view is consistent with the top-level category 'Abstract' and the notion of 'Region' introduced by the foundational ontology DOLCE (Gangemi 2002).

Examples:

The color red "ff0000" in the Hex Color Code.

Switzerland's bounding box in 2023 (instance of crm:E53 Place) as defined using the WGS 84 coordinate system (minLon: 5.967,  minLat: 45.15, maxLon: 12.467, maxLat: 52.883)

Bibliographical notes:

• Gangemi 2022: Gangemi, Aldo, Nicola Guarino, Claudio Masolo, Alessandro Oltramari and Luc Schneider ‘Sweetening Ontologies with DOLCE’. In Knowledge Engineering and Knowledge Management: Ontologies and the Semantic Web, edited by Asunción Gómez-Pérez and V. Richard Benjamins, 166–181. Lecture Notes in Computer Science. Berlin, Heidelberg : Springer. https://doi.org/10.1007/3-540-45810-7_18.

In First Order Logic:

• C5(x) ⇒ E1(x)