Difference Between Xp And Scrum

Agile Project management is one of the industries dominating methodology for project management in IT. It is an incremental and iterative way to manage the build and design activities for constructing an IT product, services, and project development in manner which is highly interactive and flexible. In this methodology, scope is defined in granularity that is appropriate with time horizon and checked with the agreement on each feature with the customer. In this methodology work steps are divided with feature breakdown structures. In order to track the progress of the project progress charts are used instead of Gantt charts. Cross-functional and test-driven development teams starts working from the very beginning of the project to provide

customer. The first paper focus Agile itself and uses Extreme Programming as an example to show how

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].

The main objective of the Scrum is that customer requirements which can be changed rapidly during software development. The sprint goal gives the development team some flexibility regarding the functionality implemented within the Sprint [3]. Iterations are called sprints and every sprint starts with a sprint planning meeting where the customer reviews and prioritizes requirements. A Scrum sprint ends in a Sprint Review, which is a quality gate for the sprint. It has a very important role in the product security risk management

In the last decades the trend to agile and even extreme methods has been the most significant event where agile methods provide developers with a comprehensive method of tools and options. It is a traditionalists approaching perfection through reusing extension planning and certifies processes. Because of new generation developers and change in information technology lead a reduction in which ASD manifesto calls revitalized approach to development, but manifesto god shattered.

Most of software houses use agile development methodologies such as XP and scrum to enhance its product quality, increase communication between teams, release products in short time and to participate its clients in software development life cycle. There are many problems usually occur, first problem the time spent between development of the software and to make it operational. Second problem is the difference between environments. There are two different environments; development environment is the first environment which is used to develop, build and deploy the software in development life cycle. This environment has no constrains. On the other hand, operation environment, which is usually called production environment. In operation

[1]The Agile software development (ASD) methodologies have been established in various streams like academic, educational and also in professional software development. Understanding of how ASD methodologies are used, the kind of acceptance, successes and failures they have in the mentioned streams would be the main exploration. The findings from the web-based survey of Microsoft employees who involved in development, testing and management have indicated that around one-third of the people use ASD and the SCRUM is the most popular ASD methodology. [2]Agile methods can be mainly used in environments which are unpredictable and helps in succeeding over such environments which are in the reality today.

Software development is one of the highest demands in all over the world. We use software development techniques to solve the problems and to satisfy customers. Agile software development is a conceptual framework for software; it is also a group of software development methods based on iterative development. In 2001, agile software development was created by seventeen people with a desire to find alternative approaches to software development. The most important thing about agile methods are team work, conveying information to the team, face to face conversation, and satisfy the customer. There are various methodologies but I am going to describe the most popular ones.

“The Agile movement seeks alternates to traditional project management. Agile approaches help teams respond to unpredictability through incremental, iterative work cadences, known as sprints. Agile methodologies are an

SCRUM is a model that emphasizes on breaking down projects into ' bite size ' portions therefore they are easily implemented and are aimed to be decommissioned quickly to cater their clients ' needs. A SCRUM team is responsible for the entire process of this development methodology which includes a product owner , scrum master and also chickens and pigs .

In this software company, the agile methodology is followed for developing clinical software for hospitals by using an empirical process control model called scrum to effectively manage and complete projects. An agile development team consists of a group of people who collaborate to create new software systems and modify existing software systems (Tripp, Riemenschneider, & Thatcher, 2016). Analysts, programmers, designers, database administrators, systems engineering, quality testers and project management represent are some of the broader skill sets that can encompass the team. In an agile team, everyone who is needed to fill a role must be part of the project team necessary to complete the project (Highsmith, 2002). Meier and Ivarsson, (2013), reported that in 2011, in a survey collected from over 6,000 respondents from several countries showed the benefits that were obtained by implementing agile; 84%

There are a number of software engineers who advocate this approach and there are huge software development organizations that prefer agile approach to use than other traditional methodologies. According to Andrew Begel and Nachiappan Nagappan [2] from more than two decade agile software methodology is gaining acceptance by the professionals since 1990. Due to fast changing technology, common customer can not define his needs properly. New approaches and methodologies were needed able to define changing requirements properly. Traditional methods such as waterfall model are not able to deal with real ways software engineering functions in software development. Some group of software consultants signed the agile SD manifesto in 2001. This was the era when agile software development was basically emerged. Main benefit of this approach is to promote and develop the response and speed of software development to change the requirement as well as deadlines [3] [4]. There are many agile methods used in agile software methods. The most known method is extreme programming generally called XP. Some others are Dynamic Software Development Methods DSDN, Scrum and Crystal. These mentioned methods can be considered as a new idea plan that is based on the traditional methods. Basic description of software development methodologies is given bellow as.

Scrum is an iterative and incremental Agile Software Development structure for managing product development. It is a development stratagem where the development team works as a unit to reach a common goal. Scrum enables a daily face-to-face communication among all team members and disciplines in the project.

The agile lifecycle based on experiment operation, which cause the good performance. The visibility indicates to support the product development. This provides efficient vision for key users. Risk management, a short incremental releases are visual to the product holder and product team through its development which help us to select any problems early and make it easier to reply to alteration. Agility indicates to admit the alterations, client satisfaction, creating the suitable product [6, 8]. There are agile methodologies: feature driven development, Extreme programming, rational unified process, animated systems development, scrum and Adaptive software development [9].

“Agile Software Development is an umbrella term for a set of methods and practices based on the values and principles expressed in the Agile Manifesto. Solutions evolve through collaboration between self-organizing, cross-functional teams utilizing the appropriate practices for their context” (Agile Alliance, 2015).