Systems Engineering Concept Model
INCOSE. 2003. Systems Engineering Concept Model. Draft 12 Baseline. Seattle, WA, USA: International Council on Systems Engineering. Available at: http://syseng.omg.org/SE_Conceptual%20Model/SE_Conceptual_Model.htm
This source is considered a primary reference for the System Modeling Concepts article.
This reference was the result of a joint effort between INCOSE and members of the AP233 Working Group and the OMG SE DSIG which occurred in 2003. It represents a consensus on the definition of some of the key system modeling concepts.