Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Chapter 15, Problem 15.8E
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The possible risks faced when a developer uses a system component of an already existing system:
- The system that has off-the-shell application directs for the disruptive changes for the business processes.
- The functionality and the operation mode reflects the functionality of the new system.
- Sometimes it is not possible to make assumptions that are to be implemented in the existing system, so, it can reflect the business assumptions.
- If the developer chooses a wrong component from the existing system, the new system cannot work as per the requirements.
- Vendor is always geared to sell his/her product and in this process the real requirements may not be satisfied fully...
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I need help creating the network diagram and then revising it for the modified activity times.
Activity No.
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Immediate Predecessors
1
Requirements collection
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Requirements structuring
4
1
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Process analysis
3
2
4
Data analysis
3
2
5
Logical design
50
3,4
6
Physical design
5
5
7
Implementation
6
6
c. Using the information from part b, prepare a network diagram. Identify the critical path.
Given the following Extended-BNF grammar of the basic mathematical expressions:
Show the derivation steps for the expression: ( 2 + 3 ) * 6 – 20 / ( 3 + 1 )
Draw the parsing tree of this expression.
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