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2. Data-flow diagram - Wikipedia

   en.wikipedia.org/wiki/Data-flow_diagram

   A data-flow diagram is a way of representing a flow of data through a process or a system (usually an information system). The DFD also provides information about the outputs and inputs of each entity and the process itself. A data-flow diagram has no control flow — there are no decision rules and no loops.

3. System context diagram - Wikipedia

   en.wikipedia.org/wiki/System_context_diagram

   Decision trees and data storage are represented in system flow diagrams. A context diagram can also list the classifications of the external entities as one of a set of simple categories [5] (Examples: [6]), which add clarity to the level of involvement of the entity with regards to the system. These categories include:

4. diagrams.net - Wikipedia

   en.wikipedia.org/wiki/Diagrams.net

   diagrams.net (previously draw.io [2] [3]) is a cross-platform graph drawing software application developed in HTML5 and JavaScript. [4] Its interface can be used to create diagrams such as flowcharts , wireframes , UML diagrams, organizational charts , and network diagrams .

5. Data-flow analysis - Wikipedia

   en.wikipedia.org/wiki/Data-flow_analysis

   Data-flow analysis is a technique for gathering information about the possible set of values calculated at various points in a computer program.A program's control-flow graph (CFG) is used to determine those parts of a program to which a particular value assigned to a variable might propagate.

6. Data model - Wikipedia

   en.wikipedia.org/wiki/Data_model

   Data-Flow Diagram example [19] A data-flow diagram (DFD) is a graphical representation of the "flow" of data through an information system. It differs from the flowchart as it shows the data flow instead of the control flow of the program. A data-flow diagram can also be used for the visualization of data processing (structured design).

7. Structured analysis - Wikipedia

   en.wikipedia.org/wiki/Structured_analysis

   The objective of a system context diagram is to focus attention on external factors and events that should be considered in developing a complete set of system requirements and constraints". [15] System context diagrams are related to data flow diagram, and show the interactions between a system and other actors which the system is designed to ...