7.1 Overview
The block is the modular unit of structure in SysML that is used to define a type of system, component, or item that flows through the system, as well as external entities, conceptual entities or other logical abstractions. The block describes a set of uniquely identifiable instances that share the block’s definition. A block is defined by the features it owns, which may be subdivided into structural features and behavioral features.
The block definition diagram is used to define blocks and the relationships between them such as their hierarchical relationship. It can also be used to specify instances of blocks, including their configurations and data values. The internal block diagram is used to describe the structure of a block ...
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