Therefore, the function-oriented paradigm is more suitable for such applications. Moreover, scien- tific computing emphasizes computing speed, the ability to solve complex computation problems, and the accuracy of the result. OO programming languages may not sat- isfy such requirements. These and the facts that scientific computing is there to stay and expand into computational sciences imply that the function-oriented paradigm will continue to exist.
In addition to the above, one should know that different parts of a system may be developed using different paradigms. For example, a subsystem that performs scientific computing may be developed using the function-oriented paradigm. A database subsystem may be developed using the data-oriented paradigm. In practice, there are systems that are modeled and designed using the OO paradigm but implemented in a non-OO language. Identify and explain three advantages and three disadvantages of each of these two models.
The waterfall model and the Unified Process UP model are similar in the sense that they are process models, they define phases, the activities and products of each of the phases. The waterfall process is a sequential process although backtracking is possible. The UP, on the other hand, is an iterative, incremental process. Waterfall process advantages are: 1 it facilitates project management, scheduling and sta- tus tracking, 2 its can be used for function-oriented team organzation, and 3 it is more appropriate for some types of software project.
Its disadvantages are: 1 it is difficult to respond to requirements change, 2 the long development duration is unacceptable, and 3 users cannot experiment with the system until late in the development life cycle. It disadvantages are: 1 an iterative process is more difficult to manage and schedule, 2 the early versions of the UP emphasize too much on documentation and much of it is not used, 3 the UP is a process, not a methodology, therefore, it is useful only for experienced software developers.
Limit the length of the essay to five pages, or according to the instructions of the instructor. There could be many different answers to this exercise. It is difficult to come up with a standard solution and use it to grade the submissions. However, the answer should show how a good process and methodology address each of the challenges. Figure 2. Grading of this exercise could be done by reading the solutions submitted by the students, according to the writing, the grader classifies the solutions into categories such as very good, good, fair, below, and poor.
Each of the categories is then reviewed and a score is assigned to each of the solution. Therefore, the student needs only to explain the differences in the essay. Section 2. Product How do we design the system to Same as product challenge 2 Challenge hide the hardware, platform and 4 implementation so that changes to these will not affect the rest of the system? Whether and why agile development will, or will not, replace plan-driven approaches.
The solution to 2. The answer to 2. This exercise should be graded using the method described in the solution for Exercise 2. What are the similarities and differences between the spiral process, the Unified Process, and an agile process.
What are the pros and cons of each of these processes. Which types of projects should apply which of these processes? The similarities are that they are iterative processes, and meant to be an improve- ment over the existing processes.
However, the iterations in the spiral process is situation dependent — that is, what to perform next depends on the outcome of the current iteration. Moreover, risk management is a unique feature of the spiral process.
Unlike the spiral process, the UP repeats the same four phases in each iteration. It does not require the spiral process like decision making. It also does not indicate risk management. Agile processes are different from the spiral and UP in the agile manifesto, agile practices and values, and agile principles. In addition, agile development tend to adopt short iterations and frequent delivery of small increments. There are other differences but a solution should focus on these.
Projects that require adequate documentation should use the UP. Research-oriented requirements need to be discovered with research tasks and experiments, which require con- siderable time and effort, and the costs are high.
The waterfall process requires that the requirements of the system must be identi- fied, clearly and completely defined before the design and implementation of the system. This is at least true in theory, although many real-world projects do not happen like this. The first two properties of wicked problems are: 1 a wicked problem does not have a definite formu- lation, and 2 the specification of the problem and the solution cannot be separated.
Clearly, the waterfall process cannot solve wicked problems because the problem-solving process does not address these two wicked-problem properties. See also solution to Exercise 2. From the discussion and the Figure 2. Software development as a wicked problem implies that the requirements for a software system cannot be completely and definitely formulated, and the specification and the solution cannot be separated — the specification is the solution, and vice versa.
Please let me know if you run into anything. I truly enjoy reading your blog and I look forward to your new updates. Hello Dear, are you actually visiting this web site on a regular basis, if so then you will definitely obtain pleasant know-how.
If you desire to obtain a great deal from this post then you have to apply these strategies to your won webpage. Here is my web blog :: web Do you have a spam issue on this site; I also am a blogger, and I was curious about your situation; we have developed some nice procedures and we are looking to trade techniques with other folks, be sure to shoot me an email if interested. Feel free to surf my web site I do not even know how I ended up here, but I thought this post was great. I don't know who you are but definitely you are going to a famous blogger if you aren't already ; Cheers!
Here is my web site ; web24 reviews. I know this if off topic but I'm looking into starting my own weblog and was wondering what all is required to get set up? I'm assuming having a blog like yours would cost a pretty penny? Any recommendations or advice would be greatly appreciated. Cheers Here is my web page Read More. Great beat! I would like to apprentice even as you amend your website, how can i subscribe for a weblog web site?
The account aided me a appropriate deal. I have been a little bit acquainted of this your broadcast provided vivid clear concept Also visit my website: Www. It's going to be end of mine day, but before ending I am reading this impressive piece of writing to improve my know-how. Thanks to my father who shared with me regarding this website, this web site is actually amazing.
When I initially commented I clicked the "Notify me when new comments are added" checkbox and now each time a comment is added I get four emails with the same comment. Is there any way you can remove me from that service? Thanks a lot! Have a look at my homepage; Full Article. What's up to every , because I am really eager of reading this blog's post to be updated regularly.
It contains pleasant information. Hello there! I know this is kinda off topic but I was wondering which blog platform are you using for this site? I'm getting fed up of Wordpress because I've had problems with hackers and I'm looking at options for another platform. I would be fantastic if you could point me in the direction of a good platform. Feel free to visit my blog - Visit This Link. I am really impressed with your writing talents and also with the format on your blog.
Is this a paid subject matter or did you modify it yourself? Either way stay up the excellent quality writing, it's uncommon to look a nice blog like this one nowadays.. Also visit my web page: Continue. Have a look at my blog post - mikesseo.
What's up mates, its impressive article concerning teachingand fully defined, keep it up all the time. While developers and IT organizations increasingly acknowledge the importance of software testing, few know how to proceed -- especially when it comes to testing advanced object-oriented software systems.
In this book, two leading O-O test researchers and consultants outline a start-to-finish methodology for testing: what to test, why to test it, how to test it, who should do the testing, and when. The book is organized around a task orientation, encompassing testing models; testing components, systems and subsystems; and planning for testing. The authors review the unique challenges associated with object-oriented software testing, offer practical insights into testing priorities, introduce each leading testing technique, and walk step-by-step throu Previously undocumented, these 23 patterns allow designers to create more flexible, elegant, and ultimately reusable designs without having to rediscover the design solutions themselves.
They then go on to systematically name, explain, evaluate, and catalog recurring designs in object-oriented systems. With Design Patterns as your guide, you will learn how these important patterns fit into the software development process, and how you can leverage t
0コメント