What does the term "solid boundary rectangle" refer to in block modeling?

The term "solid boundary rectangle" in block modeling specifically refers to a graphical representation that typically indicates the properties of a block or part within a model. In this context, a solid boundary rectangle visually encapsulates the block, clearly delineating its boundaries and highlighting its attributes or properties. It serves as a visual cue to identify the confines and characteristics of the block being modeled, making it easier for users to understand the context and contents of the block.

This representation helps in organizing complex systems into understandable components, where the solid boundary rectangle acts as a powerful tool in modeling and visualizing the components that comprise a system. This clarity is essential for effective communication of the model's structure, allowing users to focus on the properties within the block without confusion.