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Database Definition:
There are four basic steps involved in defining a database. They are:
i) Creating a Field Definition Table (FDT) : The possible content of data records should be determined in a Field Definition Table (FDT). This table is set up by using The Line Editor of micro CDS/ISIS. Tag number, name, maximum length, repeatability end possible sub-field identifiers are to be specified for each field.
ii) Creating a Data Entry Worksheet: The default data entry worksheet is to be compiled, Worksheet editor facilitates this job. Separate worksheets can be compiled to suit different requirements using the facilities of worksheet editor.
iii) Defining the Display/Print Formats : A default display/print format has to be specified. The output sequence and layout of the fields are to be described with the help of Print Formatting Language. This language is used throughout the system to specify field manipulations. Separate display formats can be specified as per the requirement.
Advantages of Re-Engineering:- 1) Reduced risk - there is a huge risk in new software development. There might be development problems, staffing problems and specification pro
Q. Define a Class diagram with example? Class diagram: A class diagram in the UML (Unified Modelling Language) is a type of static structure diagram that describes the struct
Explain Big-Bang Strategy? Ans) Big-Bang approach is very easy in its philosophy where basically all the modules or builds are constructed and tested independently of each other
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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
Explain in detail about the software process. It is explained as the structured set of activities that are required to develop the software system. Fundamental activ
Equivalence class: -It shows a set of valid or invalid states for input conditions. An input condition is either a particular numeric value, a range of values, a set of related val
Verification or validation performed which implements the system's code.
CMM is a strategy for enhancing the software process irrespective of the actual life cycle model utilized. SEI (Software Engineering Institute) of Carnegie-Mellon University develo
What is software re-engineering? No functionality is added to the system. Rather than, the system is modified to compose it easier to understand and change. System re-engineeri
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