Data Flow Diagram , DFD (skrót)

How any system is developed can be determined through a data flow diagram model.

Each operation in a data flow diagram was visually highlighted as it executed.

Video flows are developed in a notation resembling a Data flow diagram.

The person designing a system usually draws the specific microarchitecture as a kind of data flow diagram.

A well-known example of a modelling language employing this perspective is data flow diagrams.

The description focuses on using the technique to create data flow diagrams, but it can be used to identify use cases as well.

Data flow diagrams prove to be a good communication tool and only the major features of systems are drawn to help clarify.

It is common practice to draw a context-level Data flow diagram first which shows the interaction between the system and outside entities.

This context-level Data flow diagram is then "exploded" to show more detail of the system being modeled.

A brief version of the approach is described in the article on Data Flow Diagrams.

A data flow diagram can also be used for the visualization of data processing (structured design).

The data flow diagrams allocate control input, processing and output along three separate modules.

Problems with data flow diagrams have been:

They can be referenced in other data dictionary entries and in data flow diagrams.

This decomposed process is a DFD, data flow diagram.

Data flow diagrams (DFDs) are categorized as either logical or physical.

A data flow diagram (DFD) maps well to pipeline programming.

The analysis consists of interpreting the system concept (or real world) into data and control terminology, that is into data flow diagrams.

Many authors draw an ARX network, a kind of data flow diagram, to illustrate such a round function.

One of the main features of data flow diagrams is the ability to construct them in levels (reflecting functional decomposition of the process).

Often, a block in a data flow diagram has a single input and a single output, and operate on discrete packets of information.

A number of symbols have been standardized for data flow diagrams to represent data flow, rather than control flow.

The techniques include data flow diagrams, data structure diagrams, decision trees, decision tables and structured English.

A fourth part of data flow diagrams is 'sources' and 'sinks', usually external, such as a customer, a supplier or the Inland Revenue.

Data Flow Diagram, a graphical representation of the "flow" of data through an information system.