Design Structure Charts

Design Structure Charts,

A Structure Chart (SC) in software engineering and organizational theory is a chart which shows the breakdown of a system to its lowest manageable levels.
They are used in structured programming to arrange program modules into a tree. Each module is represented by a box, which contains the module's name.
Structured Charts are an example of a top-down design where a problem (the program) is broken into its components.
The tree shows the relationship between modules, showing data transfer between the models. Data being passed from module to module that needs to be processed.
Structure chart is a chart derived from a Data Flow Diagram. It represents the system in more detail than DFD. It breaks down the entire system into lowest functional modules, describes functions and sub-functions of each module of the system to a greater detail than DFD.
Initial Structure Chart

Classification/Types of Operating Systems