A proper software life cycle model can help an organization not only in building a software product but it also serves as a basis for planning, organizing, staffing, coordinating and directing various other software development activities. Software process is properly written out and managed in organizations which are mature while organizations which are immature there is no provision for writing the software process properly. There are various software Engineering models. The adoptability of them depends upon project
1. An important aspect of any software project is to know how much it will cost. Software project estimation is one of the most important, critical and challenging activities in software project development. Effective planning and control is not possible without a sound and reliable estimate. In order to make accurate estimation and avoid gross misestimations, several cost estimation techniques have been developed over the years.
Today many consider “Software Engineering” to be a buzzword, confusing yet again as seen in the previous paper, to be only a type of Computer Science. Though, this isn’t the case at all. Software Engineers are tasked with using core practices to develop software products that have the quality assurance necessary for consumers. By treating Software Development as a form of engineering allows the development process to be clearer and with more defined goals. This allows developers to strike a balance when determining what are the “right” and “wrong” methods when designing products.
It is essential that the instances that I test are hard, because otherwise the differences in models performances might not be clear. This is easy to check: if the problem is really easily solvable on the empty set, I should not include it in the results. So I add a lower bound on the time of the empty set: T(i,m0) > MinTime But is this assumption correct? If we set this in advance before running the experiment, then maybe it is okay. My argument is: putting in mind that we want to measure the significance in the difference of performance between the models/macro sets, and given that the process switching time of current operating systems is non zero, we should make such an assumption.
II. USER’S INVOLVEMENT It is an old practice to acquire the requirements of the user and then going to write the code for that. Its drawback is that the users are out of touch with the development team and when all the work is done then if a user complains then it becomes very difficult for the developer to fix the things rightly. But now-a-days it is very helpful in getting the users involved in the testing procedures of the software development. It is better that the user tell us about any flaws in the software development and the features which he wants rather than completing the software and debugging it later.
An essential part in software development is the project management. The author of “Software Engineering”, Sommerville thinks that the project success is not guaranteed by a good management, but a bad management does normally result in project failure. Usually, the projects are separated into smaller, individual tasks and activities if they are complex and need additional amount of time to be developed. A schedule has been created for this project and the Gantt chart can be found in Appendix B. Building new software requires a set of tools and technologies appropriate for the particular project.
Software Testing Software development follows a specific life cycle that starts with designing a solution to a problem and implementing it. Software testing is part of this software life cycle that involves verifying if each unit implemented meets the specifications of the design. Even with careful testing of hundreds or thousands of variables and code statements, users of software find bugs. “Software testing is arguably the least understood part of the development process” and is also a “time-consuming process that requires technical sophistication and proper planning” (Whittaker 71) It is important to comprehend this concept by understanding the different characteristics and aspects of software testing, and then to examine the techniques, procedures and tools used to apply this concept. This will enable the user to realize the problems faced by software testers and the importance of software testing.
For example, when developing the system, it can become apparent that there are particular requirements missing. It would be senseless to refuse to add more requirements just because this stage has already been passed. Incremental models allow the most variation and perhaps suggest the most realistic approach; but it does not mean that you want an incremental approach throughout. At certain times in a software development project, incremental methodologies may be useful; such as towards the end when the more complex functionality is added, or maybe at the beginning to provide stakeholders with functionality to check the system is being developed along the right lines. This demonstrates that it is therefore important to use a combination of these methods whilst completing the system, and not follow a set inflexible format that these models promote.
In the age of computer automation and electronic commerce, many businesses have become dependent upon scalable and error proof software platforms. The ongoing support of these systems by the software manufacturer is crucial for the business owner, and the software's longevity. Software Maintenance is a detailed process for weighing suggested program additions, making program updates, supporting user-related questions, and fixing latent errors. This process is both heavily time and resource consuming for software firms. This is why it is important for all software firms to have a strong and well-organized software maintenance plan, in which any changes to a given product are, to be followed.
Inexperienced programmers, who would rather simply begin to write code, often consider this initial stage unnecessary. This couldn’t be further from the truth. ; The Analysis stage is the most crucial of all – because problems later on in development almost always occur from an oversight in the general planning of the way the software should be created. DESIGN: Once the problem and solution have been identified, the next step is to determine whether a softw...