HW14: Testing Reflections

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HW4: Chapters 11 & 12

Ex 11.4.  What is the common characteristic of all architectural styles that are geared to supporting software fault tolerance? Redundant and diverse are the characteristics of all architectural styles that are geared to supporting software fault tolerance.  Ex   11.7.  It has been suggested that the control software for a radiation therapy machine, used to treat patients with cancer, should be implemented using N-version programming. Comment on whether or not you think this is a good suggestion. I think that this is a good suggestion to have the control software implemented using N-version programming. I think this because radiation therapy is a very serious matter and this software can be the reason this person lives or dies. So it would definitely be beneficial to have multiple checks  of the software to make sure that the patient always gets the correct amount of radiation.  Ex   11.9.  Explain why you should explicitly handle all ...
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HW15: Chapter 15

Ex 15.10  The reuse of software raises a number of copyright and intellectual property issues. If a customer pays a software contractor to develop a system, who has the right to reuse the developed code? Does the software contractor have the right to use that code as a basis for a generic component? What payment mechanisms might be used to reimburse providers of reusable components? Discuss these issues and other ethical issues associated with the reuse of software. If a software developer is contracted by a company to make software, the software that the company pays the developer to make is property of the company. So, the software developer could not reuse a generic component of that software because the developer doesn't have rights to it. That is how it is even though this is not fair to the developer. But software developers can work things out when getting contracted by a company so that they do have some right to the software that will be developed and so that they can r...
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HW10: Chapter 5

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Ex 5.3.  You have been asked to develop a system that will help with planning large-scale events and parties such as weddings, graduation celebrations, and birthday parties. Using an activity diagram, model the process context for such a system that shows the activities involved in planning a party (booking a venue, organizing invitations, etc.) and the system elements that might be used at each stage. Ex 5.5. Develop a sequence diagram showing the interactions involved when a student registers for a course in a university. Courses may have limited enrollment, so the registration process must include checks that places are available. Assume that the student accesses an electronic course catalog to find out about available courses. Ex 5.7. Based on your experience with a bank ATM, draw an activity diagram that models the data processing involved when a customer withdraws cash from the machine. Ex 5.8. Draw a sequence diagram for the same system. Explain why you mi...
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