Disadvantages And Disadvantages Of The Spiral Model

These user stores are then arranged into a list known as a Backlog. The Backlog is then prioritized based on what the customer and product team feels is the more important features to be implemented. The development group is then divided into Scrum Teams of about 7 – 10 members which include both developers and test engineers. The team commits to working on a number of Stories that can be completed in a 2 week development cycle known as a Sprint. Once the Sprint is completed the team will have created working software that the customer is then able to use and provide feedback.

Testing of the entire system will be performed to verify that all parts and counterparts are functional. This is the testing that is made prior to release. Tests performed in this stage verify for the following:

Agile Development is one of the methodologies use in software engineering to help develops software. Today, there are a lot of different approach to Agile method. However, they all share the same value and principals. This method is value interactions over team and customer, workable software, and adaptable to change. Over the processes, documentation, contract, and plan. Agile developer also following 12 principle. 1, Their first priority is to delivery fast and quality software that will satisfy customer. 2, be adaptable to any change in requirement at any point in time, Agile development always

Test Plan: The software is tested using two levels of testing viz. black box testing and white box testing. White box testing could be carried out in three different phases viz. unit testing system/integration testing and validation testing. • Unit Testing: Unit testing, also known as Module Testing, focuses verification efforts on the module. The module is tested separately and this is carried out at the programming stage itself.Unit Test comprises of the set of tests performed by an individual programmer before integration of the unit into the system. Unit test focuses on the smallest unit of software design- the software component or module. Using component level design, important control paths are tested to uncover errors within the boundary of the module. Unit test is white box oriented and the step can be conducted in parallel for

Client Acceptance Testing is the basic period of all anticipates and requires noteworthy interest by the end client. It needs to guarantee that the framework meets the utilitarian prerequisites.

In the testing area the code is tested and if there’re are problems then they are re-developed.

Agile processes do not devote much time up front to formal system specifications, but rather relies on continuous communication with the customer throughout the development process. The process accounts for the fact that needs often change or cannot be fully developed early on and is flexible to this. (+)

Introduction to Agile Methods by Hayes and Andrews gives detailed-oriented information about different aspects of agile methods like why there is a need for new software development processes and pitfalls of traditionally methodologies and how this lead to emergence of agile methods. They describe various existing agile methods but describes only one in great detailed – Extreme Programming(XP). They define Extreme Programming as agile, adaptive software methodology having well defined values - Communication, Simplicity, Feedback, and Courage. Failing in achieving this values will result in failing Extreme Programming. Extreme Programming is used only when you have complete understanding of the business and requirements. Extreme Programming follow a series of iteration to deliver the final project. Initially the story heard from the customer is broken down into smaller stories such that the developers can assign time to develop that stories and then its deliver to the customers for feedback. Coach plays a vital role in Extreme Programming. Afterwards Hayes and Andrews describe how XP differs from traditional methodologies. They also explain the common misconception about Extreme Programming is spread around the world. There are only fewer companies in the world that uses Extreme Programming because people are afraid of changing to new methods.

The project is Agile, i.e. it can quickly adapt to changes in requirements. Hence, this method has high success rates.

Once a tool or vendor is determined the design team will work on implementing the design. The design will be implemented as part of the project plan timeline and Smith will provide developer testing in addition to end-user acceptance testing. This ensures that the final product matches the goals of the system as laid out in the project plan. Once acceptance testing is completed the system will be implemented and the system will enter its training phase as indicated in the project plan.

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.

The development team started small, using one large company’s needs as the jumping off point, and developed the programming as it went live. Testing was done on the usability, and when it was successful, C.H. Robinson moved on to the next customer that had the same or similar needs as the previous customer. The tiered approach allowed for small changes to be made at a time, using the minimal viable product (MVP) or the minimum to go live. More extensive needs were addressed later, once the basics were well established. A team consisting of IT, business leaders, and the customer made any requests for

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].

Software industry is examining the agile software development methodologies by adopting them to few of its software projects. Industry, particularly those following the eXtreme Programming (XP) methodology, has popularized the use of pair programming. Developers often require several days to become familiar and comfortable with the dynamics and practices of pair programming when transitioning from solo programming. Extended pair programming sessions can be difficult for developers because pairing can be mentally exhausting due to the rapid pace a pair can work at and the constant focus on the task at hand. Often software engineers feel pair programming should be saved for specification,

Yet another method is extreme programming (XP). It is also a software development method which improves software quality and responsiveness to changing customer requirement (extreme). This program has proved very successful at many companies. It is successful because it focuses on customer satisfaction. Extreme programming emphasizes teamwork. In this program, managers, customers and developers are all equal partners in a team. Extreme programing improves a software project in different ways which are communication, simplicity, feedback, respect and courage. In this method, programmers constantly communicate with their customers. They keep their design simple and clean. They get feedback by testing their software and deliver the system to the customer as soon as possible and implement changes as suggested. Every team member involvement is essential for the success of the program. With this foundation extreme programmers are able to courageously respond to changing requirement and technology (Extreme Programming).