The Waterfall Method And Source Code

Cost and resource needs are higher for traditional than Agile due to Waterfall’s sequential development phase of all requirements determined in the beginning, software design and finally implementation of master design. The need for all information up front takes substantial time to gather and the sequential design does not allow for project changes as the flow enters into the programming stage. With Agile, costs remain low because there exists an incremental and iterative approach to the project, meaning less time is used to collect all requirements up front, the

Agile processes address this by dividing integration into chunks throughout the process, allowing changes to be made without drastically impacting the design. (+)

Using the waterfall approach the system developers will be able to focus on one piece of the system and move on each part separately. This will give the design team more time to focus on small sections of the new coding. Moving from one stage to the next means that each step has been checked thoroughly and is completed.

One of the initial steps in researching a problem is to know exactly what the problem is and compose a problem statement that unambiguously identifies and defines the problem to research. Sekaran (2003) said, “No amount of good research can find solutions to the situation, if the critical issue or the problem to be studied is not clearly pinpointed” (p. 69). The area of research for this paper focuses on software development, in particular, the study of agile software development methodologies and if these methodologies are successful in delivering software on time, within budget, and includes the requested features.

Using the Agile approach enabled us to organize the software project into chorological order from the User Requirements to the End product. The requirements were formed by meeting our client Fernando on regular bases discussing the requirements of the program. He would assure

The rigid methods employed by the Waterfall approach makes it easy to manage because the team cannot move onto the next stage if all of the

After having reviewed definitions and perspectives by three author groups, I’m inclined to conclude that waterfall methodology is essentially defined by its insistence upon the completion of product development steps in a sequential manner in order to accommodate a client’s need for a product or tool that will enable their business to be performed in a temporally defined effective (or desired) manner. By utility, for the sake of quickly delivering a product to the satisfaction of its client, a development team who employs the waterfall method may do so because of waterfall’s logical yet rigid structure. Its step-by-step nature promotes an easy to follow guide, though many of the tasks involved in the process of its development are anything but easy. Further, waterfall’s rigid nature seems to reinforce the notion of its logic, if but for the sake of timely product completion and client budget. Due to its methodological rigidity, however, products developed by way of waterfall may tend to be rigid in their own right.

It has been observed that in software development, change is unavoidable and must be accommodated for in the life cycle. A number of alternative process models have been introduced in order to attempt to fix the issues in the Waterfall model. An early modification to the standard Waterfall method introduced prototyping as a feedback and discovery mechanism to identify misunderstandings and omissions early on in the process (Neill, 2004). Other process models attempted to further get rid of the risks of misunderstandings by breaking down projects

Agile Development Methods (Agile) and the Waterfall Method (Waterfall) are two different styles of designing and managing the Soft Development Life-Cycle (SDLC)

Ones the requirements are collected a target can be planned but it can also very difficult to know form the beginning how the project will be looking because changes are welcome in any stage of the development. Changes can occur during the development process which can change the whole process but is also very flexible. A strong developer and customer can be established during every iteration which can help to identify the user needs and make clearer about project and what the user actually wants from the project and what his or her expectations are. Faults can be detected in better because of the

There is a cross section of projects ranging from a few weeks to a few years. There are also a wide cross section of customers, those capable of articulating clearly their requirements and the ones that are not clear on their requirements and the overall outcome to be achieved. The level of programmers within the Information Technology Department, where development work is executed, range from intermediate to advance or above average programming competence. The Waterfall approach is easier to manage and can be utilized for projects where there are clear requirements and the project is determined to be a long term one. Also, this method may be best suited given the organization’s requirements for thorough documentation and project accountability, when it comes to budget and cost. The Agile methodology can be used for projects where the requirements as well as the expectation from the end product are not as clear. The developers that are above average in terms of their competence can also use this method. In addition, the Agile method is also best suited for the projects that would require rapid

how they should be applied, none have used project data to clearly conclude which one is

Agile is an iterative and incremental (evolutionary) approach to software development which is performed in a highly collaborative manner by self-organizing teams within an effective governance framework, with "just enough" ceremony, that produces high quality solutions, in a cost effective and timely manner which meets the changing needs of its stakeholders [1].

incremental development process makes it the opposite to the rigid requirement needs of the Waterfall method. Agile methodologies are open to change as the project starts and progresses. The contrasting requirements need of the two methodologies, is one of the main contrast points in today’s project life cycle processes. There is a constant struggle between the two processes even in today’s business landscape. I have worked at Google as a program manager - mobile and after Google, I worked at a satellite manufacturing company called Space Systems Loral. The former is a software company and latter is a hardware company. At Google, they have embraced agile methodologies for software development, as the company is very progressive in nature. They are also very open to feedback from their users, and therefore agile allows them to take in product suggestions and address users’ needs with no predetermined rigid requirements from clients or users for initial requirements. Work is done in mini project or sprints format and when there is a need to shift directions, everything already worked on is scrapped if not necessary, and then a complete reset occurs. Since the project’s initial framework is not known at the time the project starts, the final product can deviate drastically from what was initially envisioned. At Space Systems Loral, being that it is a hardware satellite manufacturing company, they inherently have to adopt the waterfall methodology for their needs.

The waterfall model consists of five phases such as requirements, Design, implementation, verification and maintenance. The method is a sequential design process where progress is seen as flowing downwards in a steadily manner, each development phase has its own distinct goals. The model is similar to water flowing down a cliff it can only flow in one way and cannot go back up it is the same with waterfall development ,after a development phase is completed it proceeds to the next development phase you cannot go back.