Title	Modeling Physical/Digital Systems: Formal Event-B vs. Diagrammatic Thinging Machine
Author	Sabah Al-Fedaghi
Citation	Vol. 20  No. 4  pp. 208-220
Keywords	Event-B conceptual model thinging machine event diagrammatic representation

Title	Conceptual Modeling of Time for Computational Ontologies
Author	Sabah Al-Fedaghi
Citation	Vol. 20  No. 6  pp. 1-14
Keywords	Ontology computational ontology conceptual model SysML engineering requirements modeling time

Title	Changes, States, and Events: The Thread from Staticity to Dynamism in the Conceptual Modeling of Systems
Author	Sabah Al-Fedaghi
Citation	Vol. 20  No. 7  pp. 138-151
Keywords	Static changes conceptual model finite state machine requirements modeling static states events behavior specification

Title	Computer Program Decomposition and Dynamic/Behavioral Modeling
Author	Sabah Al-Fedaghi
Citation	Vol. 20  No. 8  pp. 152-163
Keywords	Programming computer program decomposition parallel execution conceptual model diagrammatic representation