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What are the tools are mainly used for information gathering
1. Record review: A review of recorded documents of organisation is performed.Manuals procedures, forms and books are reviewed to see functions and format of present system. Search time in this technique is more.
2. On site observation: In case of real life systems, actual site visit is performed to get a close look of system. It helps analyst to detect the problems of existing system.
3. Interview: A personal interaction with staff is performed to identify their requirements. It needs experience of arranging the interview, avoiding arguments, setting stage and evaluating the outcome.
4. Questionnaire: It is an effective tool that requires less effort and produces a written document about requirements. It examines a large number of respondents concurrently and gets customized answers. It gives person sufficient time to answer queries and give correct answers.
What does Data abstraction contains? A Data abstraction is a named collection of data that describes a data object Eg: door Attributes: door type, Opening mechanism, Swing d
Q. What is the difference between module coupling and module collection? List different types of coupling and cohesion. Ans : Cohesion is the property of a single module as we
explain dfd
1) The relationship between characters or groups of characters independent of their meanings or the manner of their interpretation and use; 2) The formation of expressions in a
i need solution manual for software engineering |10 edition by ian Sommerville
The worst type of coupling is content coupling.
What is Relationship Entities are associated to each other by relationships. It denotes how two entities are associated. A diamond notation with name of relationship signifi
What are the types of static testing tools? There are three types of static testing tools. Code based testing tools - These tools utilize source code as input and generate t
When must a function throw an exception? A function must throw an exception when it's not able to fulfil its promise. As soon as function detects a problem which prevents it
Two partners in an upholstery business are interested in decreasing the number of complaints from customers who have had furniture reupholstered by their staff. For the past six mo
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