  The current preprint is an update to SituationCO v1.1 (Situation Core
Ontology), which represents its new version 1.2. It specifies and defines all
the terms, properties, relationships and axioms of SituationCO v1.2, being an
ontology for particular and generic Situations placed at the core level in the
context of a four-layered ontological architecture called FCD-OntoArch
(Foundational, Core, and Domain Ontological Architecture for Sciences). This is
a four-layered ontological architecture, which considers Foundational, Core,
Domain and Instance levels. In turn, the domain level is split down in two
sub-levels, namely: Top-domain and Low-domain ontological levels. So in fact,
we can consider it to be a five-tier architecture. Ontologies at the same level
can be related to each other, except for the foundational level where only
ThingFO (Thing Foundational Ontology) is found. In addition, ontologies' terms
and relationships at lower levels can be semantically enriched by ontologies'
terms and relationships from the higher levels. Note that both ThingFO and
ontologies at the core level such as SituationCO, ProcessCO, among others, are
domain independent. SituationCO's terms and relationships are specialized
primarily from ThingFO. It also completely reuses terms primarily from
ProcessCO, ProjectCO and GoalCO ontologies. Stereotypes are the used mechanism
for enriching SituationCO terms. Note that in the end of this document, we
address the SituationCO vs. ThingFO non-taxonomic relationship verification
matrix.
