MBSE with GENESYS 073122

Key Semantics of Block Definition Diagrams

• Blocks (Components) • Variable content to reflect information of greatest interest • Name • Values – key domain-dependent design parameters (weight, power, physical dimensions, speed, …) • Operations – externally visible activities (functions) performed by the block

269

Key Semantics of Block Definition Diagrams, cont.

• Lines • Reflect parent-child relationship in direction of arrow

• Filled diamond – composition (destroy the parent and the child is destroyed) • Open diamond – reference (destroy the parent and the child still exists) • Roles • Optional label indicating the role a given block plays • Multiplicity • Indicator of parent-child cardinality (number of elements)

Additional information available in Chapter 7 of A Practical Guide to SysML

270

MBSE with GENESYS