Disadvantages Of Software Development

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.

“Agile” was first introduced in 2001, by a team of software engineers looking to improve their adaptiveness and responsiveness to ever-changing requirements. Not knowing where to begin, the team began by formulating principles, which they would use to guide their new development process. Which, in turn, lead to the creation of the Agile Manifesto, and thus a new methodology was born.

The Agile Methodology Principles makes the development much faster because the primary importance is given to the customer satisfaction and continuously delivers product. Even though requirements change at the ending phase the product is developed. The Agile development insist the self-organizing team which can create requirements, best architectures, best models. The Agile development promotes a distinct way of thinking to build things and methods to deliver continuous improvement of product. It facilitates to make best practices and decisions together. It a development to promote the adaptive planning, continuous improvement, evolutionary development and delivery, and required time to complete work. It encourages for rapid response to change in the whole development cycle. The project team prefers agile development to move in a creative and quick way. The project progress also depends on working software and project environment and support is provided and built by the individuals. They promote the sustainable environment. Constant attention is provided to the technical excellence and best models are given by the agile methodology. This principle helps the project team members

Scrum Agile Methodologies is the most popular of the methodologies. It is an outline that uses fixed sprints. Once a sprints has ended, a scrum team works together with a new one which starts until the projected is finished. The team consists of:

On the other hand, Agile methodology is a development method that promotes teamwork and flexibility throughout the life-cycle; it is a development method that supports using a small, cross functional team to provide software frequently in small increments on a regular cycle. It implements regular contact with employees and is more flexible compared to the Waterfall Method. There are several different Agile software development methodologies like Crystal Methods, XP, Dynamic System Development Model (DSDM), and Scrum, all examples are focused on flexibility and focuses on keeping code simple, testing

In Early 2000s, various software systems development methodologies were introduced and were started getting popular. One of them was agile method. Agile is a group of the latest and popular software systems development life cycle methodologies work in iterative way. All the requirements/needs and solutions are solved through collaboration between a development team and a business stakeholder. Agile method usually enhances an organized project management method which promotes regular assessment and revision. And the scrum is a sub group of agile. It is an iterative and incremental agile software development methodology for managing complex software and product development (“The Scrum Guide”).

Agile development is used in a team of five – six developers which work closely together and interact with each other. Before the project starts user requirements are collected from the user. The scrum master will be responsible that the whole team works and also get the customer involved to get more feedback for the project. This is a very good approach because the developers can share their knowledge and learn new skills from each other. The team member should be highly skilled in order to work together to avoid any lack of skills in the development.

The dictionary meaning of “agile” is “ability to move quickly and easily” and this is the key aspect of Agile approach. It is a team based, iterative approach to development that emphasizes on rapid delivery and completing all functional components while the client is kept involved as part of the development process (Lotz 2013).

Agile techniques should be used to solve the current issues faced by the company as agile techniques normally being used by the software industry help the business to act in response under the unpredictable situations faced. In Agile methodologies opportunities are been provided to evaluate whether the project is under the direction all through its development cycle. All this is being accomplished with the help of regular tempo kept in work, and the teams must show a product which is having the desired potential.

The organization understood the agile methodology would help reduce development costs and reduce burnout because the team would not be putting in long hours for long periods of time to work the project. Additionally, the developers could be working to develop software at the same time the business requirements were being gathered and reviewed. One process that the team was working on did not impede the progress that another area of the team was working on. The agile methodology empowered our team to continuously plan and re-plan throughout the entire development processes.

In the year 2000, a new agile methodology started to gain traction worldwide called Extreme Programing. This methodology has the goal of improving the quality and decreasing the time it takes to complete the project [1].

Over the last 13 years, since the publication of Agile Manifesto, Agile has become very popular and there has been a steady rise in the adoption of agile development methodologies resulting into an increased volume of successful projects and highly motivated and self-organized IT development teams.

It is a working method. It allows two developers work together on the same piece of code, or work on the same workstation at the same time. When a developer is editing the code and the other developer can examine the code. The developer who is editing the code called 'Driver', another developer called "Observer". In fact, two developers often change roles. In pair programming, "Observer" considers the direction of the work, make suggestions about improvement, or problems that may arise in the future. This allows the "driver" to focus their attention on completing the task.

The navigator in real time checks the code being written, on standards, optimal solution, duplicate or re-use of code, naming etc. These are tasks that a single programmer will also do, on top of merely writing code. It is why pair programming has no higher cost than single programming. Because no more activities than a single programmer would do are being performed. But instead of those activities being done in a serial way, they are now being performed in a parallel

In conclusion, agile software development is a very exciting and useful approach, although some project suit agile more than others. The collaboration and visibility can provide a much better and rewarding experience for the team to develop software products. Over the last years, many companies dramatically improved their performances