What do part properties, reference properties, and constraint properties have in common?

Part properties, reference properties, and constraint properties are all features of a block in the context of systems modeling. In modeling frameworks such as SysML (Systems Modeling Language), a block serves as a fundamental building block that encapsulates a coherent unit of structure and behavior.

Part properties define the components or parts that make up the block, reference properties allow one block to refer to another, and constraint properties specify conditions or constraints that must be satisfied within or among blocks. These properties contribute to the definition and functionality of the block, making them integral features that characterize its behavior and relationships within a system.

Understanding these different types of properties allows modelers to create more precise and meaningful models, as they define how blocks interact and what they consist of. This interconnectedness and the diverse roles these properties play confirm their classification as features of a block.