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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.
Identify the type of cohesion in the following statements: 1. Compute average daily temperatures at various sites 2. Initialize sums and open files 3. Create new temperature recor
Describe how to perform Risk Analysis during software testing. Whereas a test plan is being formed, risks involved in testing the product are to be taken into consideration al
using a dfd and a processing narrative,describe computer based system that can distinct transform flow characteristics.Define flow boundaries map the dfd into a software architectu
What are the Types of Requirements There are numerous categories of the requirements. On the basis of their priority, requirements are classified into below 3 types: 1.
Q. What do you mean by class? A class is a template that specifies the properties of objects. Classes have an interface that consists of the operation a body which implements t
List the pre-requisites for white-box testing Pre-requisites for white-box testing are similar to black-box testing with one key difference: - During white-box testing, test
Question 1 What is project management? Explain various activities involved in project management Question 2 Describe the following with respect to Estimation and Budgeting of
Discuss about Throw-away prototyping Objective: The principal aims of this model is to validate or to gain the system requirements. It is developed to minimise requi
Give detail discussion about Black box testing. Black box or behavioural testing emphasis on the functional needs of the software. It is used during the last stage of tes
Data accuracy Don't collect redundant data The questions to be answered should be decided in advance and the needed data identified. Tell people why the data is being co
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