thingsroles

Thingsroles is a modeling concept used to describe how entities known as things can assume various roles within a system. A thing is an identifiable object, which may be physical or digital; a role is a set of responsibilities, permissions, or behaviors that the thing can perform in a given context. The core idea is to separate identity from capability, allowing flexible reuse of actors across scenarios.

In a thingsroles model, roles are assigned to things through policies or schemas. A single thing can play multiple roles simultaneously or successively, and a role can be played by different things in different contexts. Roles may be bound by constraints such as time windows, location, or trust level, and changes in context can trigger reassignment.

Applications include IoT ecosystems, supply chain coordination, collaborative platforms, and data governance. In IoT, sensors and actuators can be modeled as things that play roles such as data producer, command receiver, or alert publisher. In governance, roles determine access and authority for digital resources, separate from the inherent identity of the resource.

Implementation often relies on ontologies or data schemas expressed in languages like RDF/OWL or JSON-LD, enabling interoperable definitions and reasoning. The approach offers flexibility but can introduce ontology complexity and governance overhead, requiring careful policy design and versioning. It is typically discussed alongside related concepts such as role-based access control, the actor model, and object-role modeling.

See also: role-based access control, actor model, ontology, data governance.