<h2 id="desc" class="list">CELINE Core Ontology: Description <span class="backlink"> back to <a href="#toc">ToC</a></span></h2>

<span class="markdown">The ontology defines six classes coordinating the CELINE semantic stack:

- **CommunityContext** binds a PECO EnergyCommunity to its assets, datasets and simulations.
- **Scenario** captures assumptions, temporal scope and configuration for one or more simulation runs.
- **Simulation** is the abstract definition of a simulation, independent of execution.
- **SimulationRun** is a concrete execution of a Simulation under a specific Scenario, referencing input/output datasets, SOSA observations and KPI evaluations.
- **DatasetReference** is a lightweight pointer to an external dataset; CELINE does not define dataset schemas.
- **KPIEvaluation** records the result of evaluating a BIGG KPI within a SimulationRun or Scenario.

All cross-domain links — to energy communities (PECO), devices (SAREF), observations (SOSA) and performance indicators (BIGG) — are expressed via object properties that reference terms from the imported vocabularies directly, without subclassing or redefining them.</span>