Internal block diagram
![]() Internal Block Diagrams (IDD)[1]: 52 are a static representation of the internal structure of blocks. Where the BDDs represent a black box view of the system, the IBDs represent a white box view. It details how the parts of a block are interconnected through ports and connectors, providing a clear visualization of the system's internal composition and interactions.[2] ElementsPartsThe IBD represents the internal structure of a block, and the internal components of the block are represented by parts. These parts may have a multiplicity defined, indicating the number of instances of the component that may exist in the block.[3] Reference PropertiesAn IBD may contain external elements that the block does not own. These are represented by rectangles with dashed borders.[3] Ports specify interaction points between parts. In an IBD, they are represented by small squares on the edges of a part. There are two types of ports:
ConnectorsConnectors are lines that connect ports and represent communication paths between the parts. Information, energy, and materials flow over these connectors.[1]: 75 When to use
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