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Data flow diagrams

Process description/operation, which include data flow diagrams and, if applicable,... [Pg.87]

Review the data flow diagrams and resulting product for data integrity, security,... [Pg.87]

The documentation generated during this phase may include data flow diagrams, data definitions, detailed descriptions of the processes and functions, performance requirements, and security considerations. [Pg.212]

Code reviews, inspections, and audits may make use of high-level system data flow diagrams (e.g., transaction flow diagrams) in order to determine the scope and depth of the reviews, inspections, and audits. [Pg.217]

Details on system screen designs, report layouts, data dictionary with data flow diagram, system configurations, system security, file design, system limitations and memory requirements are laid out by system developers and are usually formally inspected with members of the development team. Major outputs of this phase are the internal design documents and prototypes. The design documents are based on the ERS and can be used as a source for the technical support documentation. [Pg.27]

Process Modeling Using Data Flow Diagrams... [Pg.99]

Figure 6 Data Flow Diagram for a Simple Payroll System. Figure 6 Data Flow Diagram for a Simple Payroll System.
Functional analysis representations (data flow diagram and entity relationships)... [Pg.159]

Chadha et til. (1994) IDEFO, Data flow diagram, extended entity relationship Develop an integrated information system (3) only... [Pg.171]

Upper-Extremity Checklist, 1143-1144 major activities of, 1770 Data/control flow diagrams (DFD/CFDs), 173 Data definition languages (DDLs), 119 Data dictionaries (DDs), 102-103, 119 Data Encryption Standard (DES), 733 Data flow diagrams (DEDs), 99-101 Data gloves, 1125... [Pg.2718]

Information systems (IS) (Continued) data dictionaries, I02-I03 data flow diagrams, 99-101 entity relationship diagrams, 102, 103 feasibility analysis, 98-99 Gantt charts, 103-104 joint application deployment, 105 PERT diagrams, 104 rapid application deployment, 104, 105 Structured English, use of, 100-102 transorganizational, 69-70 as element of electronic commerce, 69-70 and types of knowledge, 67 value of, 67... [Pg.2740]

The enterprise analyzes sequences of subfunctions and their behaviors to identify and define data flows among the snbfnnctions for each operational scenario. These data flows are captured in a data-flow diagram or related object-oriented notation. The execution control of the fimctional architecture is identified and defined for each operational scenario and captured in a control-flow diagram or related object-oriented notation. [Pg.44]

Without an adequate structure in the documentation of requirements, it is not possible to provide the developers with the information they need for creating a complex system. A requirements specification provides a complete description of the functionality of the system to be developed. It also includes non-functional requirements describing constraints. The documentation will typically be structured in a hierarchical way, providing sections and subsections for different levels of requirements [9]. The hierarchy can be based on a modeling approach used for the system development, e.g. usage scenarios or data flow diagrams. [Pg.115]

Scope definition. The objectives or the analysis, and the constraints on it, such as time, are defined, as are other prerequisites sudi as the system to be analysed - including its boundary and the manner in whidi it is represented (e.g. as a data-flow diagram). [Pg.166]

To help the development process go smoothly, data-flow diagrams and scenarios were developed based on these seven functions. Scenarios for each of these functions were used to develop user interface design by using "wireframe" technology. The scenarios were also the used for benchmarking usability testing. [Pg.374]

We have investigated tlie production of a translation from the repository to the Z notation as well as tlie production of specification information in otlier notations (entity relationship diagrams, data flow diagrams, and SSADM entity life history diagrams). These can all be produced, though tliey are not included within tlie present version of the CRE ATIV toolset. [Pg.61]

Software systems design is focused on developing the software architecture and requirements specifications. Similar to the electrical architecture, the software version is also known as a data flow diagram (DFD) that shows how different devices communicate with each other. For system with many devices, a separate communications architecture may be required. To design the software systems, a DFD is also created to map the data flow between sensors and mechanisms to the control units. In DFDs, there are boxes representing external entities or data sources, data flow shown as lines, data stores shown as open boxes, and processes shown as circles. [Pg.13]

Figure 1.6 Data flow diagram for a pizza store. Figure 1.6 Data flow diagram for a pizza store.
The semiformal methods chosen should be appropriate to the application and typically include logic/function block diagrams, cause and effect charts, sequence diagrams, state transition diagrams, time Petri nets, truth tables, and data flow diagrams. [Pg.83]

Logic diagrams Data dictionary Data flow diagrams... [Pg.217]

Diagrams are an efficient way to portray the model stmctme. The types of diagram that are suitable are data-flow-diagrams , which show the relationships between functions (the data flows) or function flow diagrams that portray relationships on the basis of variables (the relationships between the data are the functions). In this example, data flow diagrams, also called information flow diagrams will be used. They relate closely to the input-output models that were used in a previous phase. The functions in the model for the description of the dynamic behavior are differentia equations and additional equations. These equations contain parameters. [Pg.9]


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See also in sourсe #XX -- [ Pg.13 , Pg.14 ]




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