2.3.1. Conceptual

The conceptual knowledge aims to develop a formal domain ontology. The ontology considers domain terminology, elements, categories, principles, and generalizations, which can consider chemical, physics, and mechanics phenomena. All those domain information is retrieved from standards, books, handbooks, etc., derived from Sections 2.1.1 and 2.2.1. Additionally, information gathering can consider good manufacturing practices and standard operating procedures derived from Section 2.1.2. Thus, the ontology models those elements in the form of classes (elements involved in the domain area), data-properties (data from specifications and sensors), classes-properties (the relation among elements), axioms (assumptions on behavior), and rules (restrictions on behavior).
