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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. Circular flow of income - Wikipedia

   en.wikipedia.org/wiki/Circular_flow_of_income

   Basic diagram of the circular flow of income. The functioning of the free-market economic system is represented with firms and households and interaction back and forth. [2] The circular flow of income or circular flow is a model of the economy in which the major exchanges are represented as flows of money, goods and services, etc. between ...

4. Flowchart - Wikipedia

   en.wikipedia.org/wiki/Flowchart

   Common alternative names include: flow chart, process flowchart, functional flowchart, process map, process chart, functional process chart, business process model, process model, process flow diagram, work flow diagram, business flow diagram. The terms "flowchart" and "flow chart" are used interchangeably. The underlying graph structure of a ...

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. Transaction processing system - Wikipedia

   en.wikipedia.org/wiki/Transaction_processing_system

   A Transaction Processing System (TPS) is an information system that collects, stores, modifies, and retrieves the data transactions of an enterprise. Transaction processing systems also attempt to provide predictable response times to requests, although this is not as critical as real-time systems.

7. Transaction processing - Wikipedia

   en.wikipedia.org/wiki/Transaction_processing

   For example, transaction A may access portion X of the database, and transaction B may access portion Y of the database. If at that point, transaction A then tries to access portion Y of the database while transaction B tries to access portion X, a deadlock occurs, and neither transaction can move forward. Transaction-processing systems are ...

8. Stock and flow - Wikipedia

   en.wikipedia.org/wiki/Stock_and_flow

   A flow variable is measured over an interval of time. Therefore, a flow would be measured per unit of time (say a year). Flow is roughly analogous to rate or speed in this sense. For example, U.S. nominal gross domestic product refers to a total number of dollars spent over a time period, such as a year. Therefore, it is a flow variable, and ...

9. Semantic data model - Wikipedia

   en.wikipedia.org/wiki/Semantic_data_model

   With the proper technology, the resulting conceptual schema can be used to control transaction processing in a distributed database environment. The U.S. Air Force Integrated Information Support System (I2S2) is an experimental development and demonstration of this kind of technology, applied to a heterogeneous type of DBMS environments.