Beginners Guide to Model-Based Systems Engineering
12/18/2018
Physical and Internal Block Diagrams (PBDs and IBDs)
• Specify logical (Interface) or physical (Link) connectivity of system / component • Serves as the system context diagram at the highest level • Often includes conceptual component graphics at higher levels to enhance communication • Cartoon or “architoon” • Classically shown as boxes and lines at lower levels • “System schematic”
ifbdPhysicalContext
Certification Authority
Collectors
Customer-Command Center Interface
Customer-Workstation Interface
Customers
Collectors Interface
CertificationAuthority Interface
Customers Interface
CommandCenter
Workstation
GeospatialLibrary
131
Key Semantics of Physical and Interface Block Diagrams
• Components
ifbdPhysicalContext
• Number and name standard • Connections (logic Interfaces or physical Links) • Represented as lines connecting nodes • Labeled with name • Optionally display items carried (delimited by braces) for additional detail • External Systems • Often shown as full nodes and specially tagged (background color / font color)
Certification Authority
Collectors
Customer-Command Center Interface
Customer-Workstation Interface
Customers
Collectors Interface
CertificationAuthority Interface
Customers Interface
CommandCenter
Workstation
GeospatialLibrary
132
66
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