Observable
Observable definition here...
What characterizes...
Single Observable Modeling
Single Observable Modeling is when the SDM, a DSDM, or a USM is developed to follow the Single Observable Constraint in Section J.7.1. The Single Observable Constraint limits Conceptual Entities to composing at most one element of a single Observable type. Models that follow the Single Observable Constraint provide a clearer understanding of Entities by reducing the likelihood of semantic information being embedded in the multiple composition of Observables. This is considered a data modeling best practice.