Computer Science Illuminated
7th Edition
ISBN: 9781284155617
Author: Nell Dale, John Lewis
Publisher: Jones & Bartlett Learning
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Chapter 9, Problem 3TQ
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Most preferable problem solving strategy:
Top-down approach is the mostly used problem solving strategy.
Reasons:
- This approach starts by explaining most important issues and queries...
Explanation of Solution
Other approach used in problem solving strategy:
Bottom-Up Approach:
- In this approach, first the individual elements are specified in very detail...
Explanation of Solution
“Yes”, Bottom-up approach will be appropriate for problem solving.
Reasons:
- When existing components are taken into the account, bottom-up approach is used...
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I need help creating the network diagram and then revising it for the modified activity times.
Activity No.
Activity
Time (weeks)
Immediate Predecessors
1
Requirements collection
3
2
Requirements structuring
4
1
3
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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Chapter 9 Solutions
Computer Science Illuminated
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