Block diagrams are used in a context. In the analysis of biology, for example, block diagrams are utilized to show biological functions and interrelations.
The simplification in block diagrams can also be useful when demonstrating a notion, but hiding the inner workings of possibly confidential intellectual property (IP). Top-down design in electrical technology frequently progresses through increasingly detailed block diagrams. Block diagrams in process control show the purposes of surgeries but not the components that do them. The functions of block diagrams may then be executed using programmable logic controllers (PLC).
Block diagrams are a generalized representation of a concept and aren't meant to display comprehensive information in regards to manufacture or design. Unlike schematics, blueprints and design diagrams, block diagrams don't portray the necessary detail for physical construction. Block diagrams are made easy in order to not cloud theories.
Block diagrams are used in engineering and design of diagrams such as processes, hardware, applications and electronic equipment. Most frequently, they symbolize theories and systems at a higher degree, less detailed summary. The diagrams are useful for troubleshooting technical problems.
A block diagram is a visual representation of a system which uses easy, labeled cubes that represent single or multiple objects, concepts or entities, connected with lines to show relationships between them. An entity relationship diagram (ERD), 1 example of a block structure, represents an information system by demonstrating the relationships between people, objects, locations, concepts or events inside that system. (See an image over the ERD definition webpage.)