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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 is a data flow graph that pictorially represents transformation on data as demonstrated in Figure.
Problem 1. Explain why the use of a standard high-level language does not guarantee that software will be portable across a range of machines 2. Draw possible data flow diag
What are the misunderstanding arise in software development Some of the common misunderstandings regarding software development are given below. 1. Correcting errors is eas
Which type of software must not be automated? Following types of software must not be automated: - Incomplete/Unstable software since they are still undergoing changes -
Define the method of Direct changeover With this technique, old system is stopped and new system is used Straight away; - This method can be disastrous if new system fails
Q. Illustrate Detailed COCOMO model? Detailed COCOMO it incorporates all characteristics of the intermediate version with an assessment of the cost driver's impact on every ste
CMM = 'Capability Maturity Model', now known as the CMMI ('Capability Maturity Model Integration'), developed by the SEI. It's a model of five levels of process 'maturity' that ver
Q. Explain Span and average span size of a program? Span dimension indicates the number of statements that pass between successive uses of a variable. For illustration in the f
describe normalization & its forms? plz i m very thankful.......
What is a data object? Data object is a collection of attributes that act as an aspect, characteristic, quality, or descriptor of the object.
Ask Create an XML file with markup tags and some sample data to represent a list of invoices.
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