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2. High-level design - Wikipedia

   en.wikipedia.org/wiki/High-level_design

   A high-level design document or HLDD adds the necessary details to the current project description to represent a suitable model for building. This document includes a high-level architecture diagram depicting the structure of the system, such as the hardware, database architecture, application architecture (layers), application flow ...

3. System context diagram - Wikipedia

   en.wikipedia.org/wiki/System_context_diagram

   Example of a system context diagram. [1] A system context diagram in engineering is a diagram that defines the boundary between the system, or part of a system, and its environment, showing the entities that interact with it. [2] This diagram is a high level view of a system. It is similar to a block diagram.

4. Data-flow diagram - Wikipedia

   en.wikipedia.org/wiki/Data-flow_diagram

   The refined representation of a process can be done in another data-flow diagram, which subdivides this process into sub-processes. The data-flow diagram is a tool that is part of structured analysis and data modeling. When using UML, the activity diagram typically takes over the role of the data-flow diagram. A special form of data-flow plan ...

5. Structured analysis - Wikipedia

   en.wikipedia.org/wiki/Structured_analysis

   This context-level data flow diagram is then "exploded" to show more detail of the system being modeled. Data flow diagrams (DFDs) are one of the three essential perspectives of structured systems analysis and design method (SSADM). The sponsor of a project and the end users will need to be briefed and consulted throughout all stages of a ...

6. Function model - Wikipedia

   en.wikipedia.org/wiki/Function_model

   The functional flow block diagram (FFBD) is a multi-tier, time-sequenced, step-by-step flow diagram of the system's functional flow. [14] The diagram is developed in the 1950s and widely used in classical systems engineering. The functional flow block diagram is also referred to as Functional Flow Diagram, functional block diagram, and ...

7. High- and low-level - Wikipedia

   en.wikipedia.org/wiki/High-_and_low-level

   These are typical features of high-level and low-level descriptions, respectively. As a more general matter, encyclopedias, such as Wikipedia, can be considered a more high-level source of information on a particular topic than one might find in, for example, a trade magazine or a scientific journal.