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Explain about the E-R Diagram
Entity-relationship (E-R) diagram is detailed logical representation of data for an organisation. It is data oriented model of a system while DFD is a process oriented model. ER diagram represent data at rest whereas DFD tracks the motion of data.
ERD doesn't provide any information regarding functionality of data. It has 3 main components - data entities, their relationships and their associated attributes.
What are the main objectives of reverse engineering? The main objectives of the reverse Engineering process are: (i) It helps the companies to understand the difficulties
What is DFD? Data Flow Diagram depicts the information flow and the transforms that are applied on the data as it moves from input to output.
What is Software Software is nothing but a collection of computer programs that are related documents that are indented to give desired features, functionalities and good per
What is Problem Any deviation from defined standards. Similar as defect.
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Path & Path Production, Syntax testing, Computer Engineering Take the following flow graph and use the procedure in chapter 8 to derive an equivalent regular expression. Show all i
What does modality in data modeling indicates? Modality shows whether or not a particular data object must participate in the relationship.
Define Black box testing Black box testing Black-box test design care for the system as a "black-box", so it doesn't explicitly use knowledge of the internal structure. It ta
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
Configuration Management: Because of several reasons, software changes during its life cycle. As a result of the changes made, many versions of the software exist at one time.
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