Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Chapter 9, Problem 9.8E
Explanation of Solution
Software maintenance:
In order to correct faults and to improve performance and other attributes after delivery various software modification techniques are used.
The three main types of software maintenance are:
- Corrective maintenance: Corrective maintenance or fault repair are the changes made to the system to repair reported faults which may be program bugs or specification errors or omissions.
- Adaptive maintenance: Adaptive maintenance or environmental adaptations is the change in software to adapt it to changes in its environment such as changes to other software systems.
- Perfective maintenance: Perfective maintenance or functionality addition involves adding new functionality or features to the system...
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: The Multithreaded Cook
In this lab, we'll practice multithreading. Using Semaphores for synchronization, implement a
multithreaded cook that performs the following recipe, with each task being contained in a single Thread:
1. Task 1: Cut onions.
a.
Waits for none.
b. Signals Task 4
2. Task 2: Mince meat.
a. Waits for none
b. Signals Task 4
3. Task 3: Slice aubergines.
a. Waits for none
b. Signals Task 6
4. Task 4: Make sauce.
a. Waits for Task 1, and 2
b. Signals Task 6
5. Task 5: Finished Bechamel.
a. Waits for none
b. Signals Task 7
6. Task 6: Layout the layers.
a.
Waits for Task 3, and 4
b. Signals Task 7
7. Task 7: Put Bechamel and Cheese.
a.
Waits for Task 5, and 6
b. Signals Task 9
8. Task 8: Turn on oven.
a.
Waits for none
b. Signals Task 9
9. Task 9: Cook.
a. Waits for Task 7, and 8
b.
Signals none
At the start of each task (once all Semaphores have been acquired), print out a string of the task you are
starting, sleep for 2-11 seconds, then print out a string saying that you…
Chapter 9 Solutions
Software Engineering (10th Edition)
Ch. 9 - Explain why a software system that is used in a...Ch. 9 - Prob. 9.2ECh. 9 - Prob. 9.3ECh. 9 - Prob. 9.4ECh. 9 - What are the strategic options for legacy system...Ch. 9 - Prob. 9.6ECh. 9 - As a software project manager in a company that...Ch. 9 - Prob. 9.8ECh. 9 - Explain the differences between software...Ch. 9 - Prob. 9.10E
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Similar questions
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- using r languagearrow_forwardWrite a function to compute a Monte Carlo estimate of the Beta(3, 3) cdf, and use the function to estimate F(x) for x = 0.1,0.2,...,0.9. Compare the estimates with the values returned by the pbeta function in R.arrow_forwardWrite a function to compute a Monte Carlo estimate of the Gamma(r = 3, λ = 2) cdf, and use the function to estimate F(x) for x = 0.2, 0.4, . . . , 2.0. Compare the estimates with the values returned by the pgamma function in R.arrow_forward
- using r languagearrow_forwardusing r languagearrow_forwardYou are given a class that processes purchases for an online store. The class receives calls to: • Retrieve the prices for items from a database • Record the sold items • Update the database • Refresh the webpage a. What architectural pattern is suitable for this scenario? Illustrate your answer by drawing a model for the solution, showing the method calls/events. b. Comment on how applying this pattern will impact the modifiability of the system. c. Draw a sequence diagram for the update operation.arrow_forward
- The images I have uploaded are the part 1 to 4 and questions below are continue on the questions uploaded 5. C++ Class Template with Method Stubs #pragma once #include <iostream> #include <string> #include <stdexcept> #include <vector> template <typename T> class HashTable { private: struct Entry { std::string key; T value; bool isOccupied; bool isDeleted; Entry() : key(""), value(), isOccupied(false), isDeleted(false) {} }; Entry* table; size_t capacity; size_t size; double loadFactorThreshold; size_t customHash(const std::string& key) const { size_t hash = 5381; for (char c : key) { hash = ((hash << 5) + hash) + c; } return hash; } size_t probe(const std::string& key, bool forInsert = false) const; void resize(); public: // Constructor HashTable(size_t initialCapacity = 101); // Big…arrow_forwardthis project is NOT for graded(marks) purposes, please help me with the introduction. give me answers for the project. i will include an image explaining everything about the project.arrow_forwardJava Graphics (Bonus In this lab, we'll be practicing what we learned about GUIs, and Mouse events. You will need to implement the following: A GUI with a drawing panel. We can click in this panel, and you will capture those clicks as a Point (see java.awt.Point) in a PointCollection class (you need to build this). The points need to be represented by circles. Below the drawing panel, you will need 5 buttons: O о о ○ An input button to register your mouse to the drawing panel. A show button to paint the points in your collection on the drawing panel. A button to shift all the points to the left by 50 pixels. The x position of the points is not allowed to go below zero. Another button to shift all the points to the right 50 pixels. " The x position of the points cannot go further than the You can implement this GUI in any way you choose. I suggest using the BorderLayout for a panel containing the buttons, and a GridLayout to hold the drawing panel and button panels. Regardless of how…arrow_forward
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