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Conclusion on Software development methodology
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A software development methodology is a framework that is used to structure, plan, and control the process of developing an information system. There are different software development methodologies which are used for different reasons. There are different software development methodologies but we will look at 4 methodologies here and they are: - 1) Waterfall Development Methodology is a traditional development methodology which consists of phases (requirements, design, implementation, integration and testing, deployment, maintenance). These phases are run in sequential manner. Each phase must be done completely in order to move to the next phase and there is no turning back, means there is no process for going back to modify the project. …show more content…
• Integration and testing- All the units developed in the implementation phase are tested and integrated into the system. After the integration, the system is tested for faults and failures. • Deployment- Once the testing is completed, the software is deployed into the market. • Maintenance- Some issues come up from the customers which needs to be fixed. Some better versions are also released to enhance the product. This model does not allow changes and revision during the process. Once an application is in the testing phase, it is very difficult to go back and change something that was not well documented in the concept stage. 2) Spiral Development Methodology- The spiral development model is the widely used model. This model has 4 phases: - Identification, Design, Construct, and Evaluation and Risk Analysis. A project repeatedly passes through these phases in spirals. • Identification- In this phase requirements are gathered. This phase understands the system by continuous communication between the customer and the system …show more content…
Each iteration is a mini project of its own. Each iteration is tested to ensure software quality is maintained. Interaction with the customer is the backbone of the agile methodology. Agile model follows some principles and they are as follows: - • Individuals and interactions- Team members need to encourage to take an active part in the development and planning activities. They are given the power to take actions on their own. The team members have to share their ideas to develop the product as a whole unit. • Working Software- The objective here is to develop and deliver a demo product to the customers to understand their requirements until the entire product is developed. • Customer Collaboration- As the requirements may not be available in the beginning of the project, continuous customer interaction is very important to get proper requirements. It saves a lot of time through customer collaboration, as the projects proceeds in a successful manner. • Responding to changes- Agile is focused on quick responses to change and continuous development. Changes can be carried out at any time while the features are being
Integration of different modules is undertaken once they have been coded and unit tested. During the integration and system testing phase, the modules are integrated in a planned manner. The different modules making up a software product are almost never
4. Explain why change is inevitable in complex systems and give examples (apart from prototyping and incremental delivery) of software process activities that help predict changes and make the software being developed more resilient to change.
I recommend Scrum as our methodology because we do not know the requirements, the system needs to be developed quickly, and the system needs to be reliable. Scrum excels at new and changing requirements as well as adapting to new client needs. May Enterprises is currently unsure of what exactly they want so an adaptable methodology would excel. Scrum aims at creating a working system at the end of each sprint. Creating an implementable system quickly and incrementally is one of the main goals of Scrum. Also, because
Most agile development methods break product development work into small increments that minimize the amount of up-front planning and design. Iterations are short time frames that typically last from one to four weeks. Iteration involves a cross-functional team working in all functions: planning, analysis, design, coding, unit testing, and acceptance testing. At the end of the iteration, a
“agile methods or agile methodologies are a software developing method that is people focused communications- oriented, that is flexible ( ready to adapt to expected changes at any time), speedy , lean (shorting timeframe and costs on Improved quality), responsive and learning ( focused on improvement during and after product development)”.
Agile project management is widely used by Information Technology professionals for software development. It was not always this way. In the earlier stages of development the norm was to use “heavy” methodologies such as Waterfall or Spiral for software development. These other methods were criticized for having too many regulations and being unable to adapt to project changes. People understood these methods were flawed because IT teams were not delivering software that met the agreed-upon budgets, schedules, or costs. In fact “The DoD (Department of Defense), noted that, of the $35.7 billion spent by the organization in 1995 for software, only 2 percent of the software was usable as delivered.” (Freedman). This led IT professionals to try out new ways of managing their projects and used the internet to share their experiences with each other. Two more common agile methods, Scrum and Extreme Programing, were developed in the mid 1990’s, but at that time there were not yet any guidelines that detailed what Agile was. In 2001 seventeen software developers meet in Utah to discuss the new ways of managing software projects and published the Agile Manifesto for Software Development.(The Agile Alliance). The Manifesto underlined common values and principals of all agile projects and led to what Agile is today. Agile Project Management is a lightweight method for software development projects. This means it has fewer rules and regulations to follow; instead, there are guidelines and principles that can help guide the project team along the way. This is why there are many different implantation methods, but not all will fit every project. Agile is meant to be tailored to every different project which means every ma...
Agile Methodology is a term I have come across more and more throughout my exposure to professionals in the IS field. Wither it be networking activities, interviews, or general conversation I repeatedly hear “Agile Methodology” in reference to system development and project management, where it is referenced as the “newest and greatest” method of development. This has made me wonder what exactly is Agile Methodology, when is it best for a development team to use Agile, why is Agile the “in” methodology, how is it implemented, and what are the results of “going agile”. In this series of summaries, I will peruse blogs and networking sites on the internet, utilized various journals, and interview fellow students and professionals in the IS field to discover the what, when, why, and how of Agile Methodology. In preparation of this summary I found that Agile is an umbrella term for at least ten different methodologies with three common key principles based on the Agile Manifesto.
The Systems Development Life Cycle (SDLC) consists of phases used in developing a piece of software. It is the plan of how to develop and maintain software, and when necessary, replace that software. In 2007 during my hospital’s transition to a new software system, I was fortunate enough to be included in the process. I did not get involved until the implementation phase, but from then on, until now, I remain very active in the process. I decided to highlight the Waterfall Model of SDLC. The Waterfall Model is a “sequential development process” with each phase continuing in a line (McGonigle and Mastrian, 2012, p. 205).
The Waterfall model is more or less totally linear in progression with six specific stages being undertaken in chronologically descending order. The first stage is known as the Requirements stage, in which the document of product requirements is created for future reference. The Design procedure is the second stage, which culminates in the architecture for the base software. Next, the Construction stage occurs, where the implementation of coding upon the base architecture results in the actual software being created. The fourth stage is Integration, where the software is made ready for the systems that it will become a part of, merging it to create the first step of the final product. Testing and debugging then occur to make sure that Integration worked as planned without the introduction of new errors due to the integration or that old mistakes do not take on a new potency due to the change in the software. Finally, Installation of the product occurs, finishing the product, which is taken up by the Software and the Maintenance steps of the six-stage Waterfall model. There are non-traditional variations of the waterfall method, but these are not relevant to the current discussion, and as such, will not be covered at this time.
Software Process: The process is a required part of any discussion on software development. Software development occurs over many phases, requiring many different skills. The process is a management tool for making sure that everything gets accomplished. One issue with using a process is avoiding the tendency to over-regulate or bureaucratize the engineers and thus impact their sense of respect and positive responsibility. [[1]]
In the late 1990s, the word “agile"[2] in the field of computer system mean either” ready ability to move with quick easy grace “or “able to move your body quickly and easily”. However, this word starts to have another meaning in February, 2001. A group of seventeen software developer gathered at Snowbird, Utah and determine agile software development. Agility is a common ground where they can agree, though each participant has his own ideas about how to build high-quality software. Common ground agreement results fro...
In the waterfall method, the steps have to be finished iterative, meaning the next step cannot be started until the previous step is completed. Once the current step is completed, then the next step can be started and so on. The customer does not get a working build during any of the steps and cannot make any changes in the scope at all. Once all steps are completed, the end result is given to the customer and then they can deploy and hope it does what they are needing it to do. If any of the steps need to be changed, then the whole process will need to be restarted from the beginning and the process began again. In agile methods, the process is more flexible. This method is flexible and can allow changes after each iteration. The goal of each iteration is to provide a working build so that the customer can give feedback on it and changes can be made, if needed, so that all requirements are met, or if requirements have changed since the initial build of the
Agile is an iterative based software development methodology. In this particular approach a certain functionality of the software is developed in two to four numbers. The client or the partner for whom the system or the software is being developed stays in constant communication throughout as their feedback forms the basis of the next iteration. Since the feedbacks are readily and easily available, the final outcome rarely turns out to be undesirable for the clients.
Most of the software development projects change just during the development is in process. This is the reason that agile methodology is best for these projects. There is a room for change in them. Software developers follow these methods and this is the reason that they have further modified these methods according to the different types of projects they confront in their development time.
There are various software models available for developing the software’s depending on the project requirements the models are used. Because it completely explains when the user should proceed to next phase and when to conduct tests. The below are the few different software models