Explain UML Diagrams
UML can be used to construct nine different types of diagrams to capture five different views of a system. Just as a building can be modeled from several views (or…
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UML can be used to construct nine different types of diagrams to capture five different views of a system. Just as a building can be modeled from several views (or…
UML, as the name implies, is a modeling language. It may be used to visualize, specify, construct, and document the artifacts of a software system. It provides a set of…
We are all familiar with the flow chart representation of a program. Flow chart is a convenient technique to represent the flow of control in a program. A structure chart…
A structure chart represents the software architecture, i.e. the various modules making up the system, the dependency (which module calls which other modules), and the parameters that are passed among…
DFD models suffer from several shortcomings. The important limitations of the DFD models are the following:DFDs leave ample scope to be imprecise – In the DFD model, the function performed by…
A data dictionary lists all data items appearing in the DFD model of a system. The data items listed include all data flows and the contents of all data stores…
The main reason why the DFD technique is so popular is probably because of the fact that DFD is a very simple formalism – it is simple to understand and…
DFD can represent Source, destination, storage and flow of data using the following set of components Entities – Entities are source and destination of information data. Entities are represented by rectangles…
There are two generic approaches for software designing:Top down Design We know that a system is composed of more than one sub-systems and it contains a number of components. Further, these…
Object oriented design works around the entities and their characteristics instead of functions involved in the software system. This design strategy focuses on entities and its characteristics. The whole concept…