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What is the use of a data flow diagram? A data flow diagram is used to represent the functional view of an application domain. It represents all the significant business proces
A storage tank has a container to keep a certain amount of fuel and it also has an indicator to inform about the level of fuel inside the container. The container cannot exceed
What is software testing? The testing process focuses on the logical internals of the software, ensuring that all statements have been tested, and on the functional externals,
Data Flow Diagrams (DFD) It's a graphical representation of flow of data through a system. It pictures a system like a network of functional processes. The foundation of DFD i
Software life cycle starts when a software product is first conceived and ends when it is no longer in use. It contains aspects such as initial concept, requirements analysis, inte
Symbols of a data flow diagram 1. Data Flow Signifies the connectivity between various processes 2. Process Performs some processing of input data 3. Ex
Productivity and difficulty Productivity refers to metrics and measures of output from production processes, per unit of input. Productivity P may be conceived of as a metric
pexplain Explain basic Docomo model
Name the design phase of SDLC Generally, design is performed in the below two steps: i) Primary Design Phase: In this phase, system is designed at block level. Blocks are
State about the Data Dictionary This is another tool of requirement analysis that reduces complexity of DFD. A data dictionary is a catalog of all components of a system. DFD
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