seas:Property extends qudt:Quantity because the evaluated property may not be a Quantity, but have several qualifiable aspects. The Semantic Actuator Network Ontology (SAN) proposes that ssn:Property be a subClass of qudt:QuantityKind. Yet a property may be not measureable and numerically quantifiable. Indeed, it may also be a boolean, or any other kind of quality value (e.g., "UNOPERATED"). `seas:Evaluation` extends `qudt:QuantityValue` because the evaluated property may be something else than a Quantity. It may be a quality, or an enumeration. v1.0 QUDT Alignment. seas This ontology defines proposed alignemnts with the QUDT ontology. 2016-09-19 2016-09-19