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Software Development Iterative Methodology
(White Paper for NTT Data Gold Club)
Ashesh Kumar
BMS Version 10.01
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TABLE OF CONTENTS
1. ABOUT THE AUTHOR(S)/CONTRIBUTORS III
2. INTRODUCTION IV
3. CONTEXT V
4. SDLC FLOW OVERVIEW: VI
5. PROJECT METRICS –BURNDOWN CHARTS: VIII
6. RETROSPECTIVES: IX
7. FIVE TYPES OF SDLC PHASES: X
8. CONCLUSION: XIII
9. REFERENCES: XIV
1. About the Author(s)/Contributors
Ashesh Kumar, Senior Software Engineer, ALMAC, Hyderabad.
Ashesh Kumar is working with NTT Data and served client of Health care verticals. He has been the point of contact for testing efforts for clients like GlaxoSmithKline, NTS and ALMAC. Primary He has been a part of NTT Data for almost 3.0 years where he started as a fresh college graduate. He has gradually gained experience and knowledge being a part of GSK QA team, NTS and now into ALMAC. He has been working in ALMAC for almost a year now.
2. Introduction
This White paper is about Software development life cycle based on agile principles or software development iterative methodology .This white paper contains and talks about Software Development Lifecycle (SDLC) employed to create a major or minor software r...
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...rements can be incorporated in any stage of the software life cycle or during any of the five phases of pre-initiate, initiate, Plan, deliverable and close phase. This flexibility did not exist in the previous software development life cycles (e.g. waterfall model of software development life cycle).
In the new development life cycle Each major release is divided into sub-releases or what is know as ‘iterations’. All functional requirements are split into iterations so that the requirements can be effectively implemented as per the specifications provided by the client. After every iteration the software is reviewed and to verify and make sure that requirements have been adequately met and remaining changes could be implemented in subsequent iterations. Thus, changes can be implemented throughout the cycle.
9. REFERENCES:
• www.wikipedia.com
The Software Development Life Cycle is seldom used at my place of work. Unfortunately, recent developments in its use are deemed confidential. Due to this fact, this paper will examine in general terms one of the projects we are undertaking right now while at the same time attempting to maintain our confidentiality.
The software development life cycle (SDLC) is a framework defining tasks performed at each step in the software development process.
Waterfall development and agile software development approaches have been the conversation at watercoolers in Information Technology (IT) departments. Which software development approach is most effective? Should the decision be made by industry or by project? Is the company considered archaic if they don’t embrace the more newly agile software development method? Each development method has much to offer. Both will be compared and contrasted and will conclude with the approach I believe is most valuable in a software development setting.
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).
Rather than the long drawn out release cycles in the previously popular waterfall methodology, the agile methodology suggests regular short sprint release cycles called iteration. This allows the customers and stakeholders to have more involvement within the software development process. The iterative approach has become vastly effective in helping software developers improve their skills in estimating schedule for remaining tasks. Schedule estimation is one of the most difficult responsibilities for developers because software issues are common and are unpredictable by nature. By breaking the large requirements down into more manageable sub requirements, the agile process naturally promotes better estimation [1]. Agile methods are people-oriented rather than process-oriented, Qumer and Hender-son-Sellers [2] offer the following definition for the agility method: ‘‘A software development method is said to be an agile software development method when a method is people focused, communications-oriented, flexible (ready to adapt to expected or unexpected change at any time), speedy (encourages rapid and iterative development of the product in small releases), lean (focuses on shortening time frame and cost and on improved quality), responsive (reacts appropriately to expected and unexpected changes), and learning (focuses on improvement during and after product
Software development life cycle (SDLC) can be termed as a process of bringing ideas to reality in the creation of a software product with in the software industry.
In our opinion, Phased development known and usually as product-oriented processes because the phased development process is sequence of mini project (series of sub-module are conducted parallel). Phased development process always using to develop software or system. In addition phased development usually always using for the big project to deliver. This process is to complete the project which can be said to be a big project and divide the work required by section to be completed faster. Based on the phased development framework can be seen every phase of the distribution is required to get the job done their part to ensure that the work is more organized and running smoothly. 2 or Phase 2 to Phase 3 and will be done in parallel. This matter is to complete the project faster. Often the process is repeated until the phase 3 where the process in phase 3 phase which is often no more last changer after the user reviews of the client but can be repeated until phase 5 if there is dissatisfaction with the client for a job until the client says the project has met the criteria they want. The example project for phased development is to develop system for Campus Management System KPTMKL. We give an example of this is a relatively large system to complete is develop Campus management system for students KPTMKL. This system is to enable students to refer their personal data, financial education, examination results and also the subjects taken by them. Next, to get all this information should be applicable to all the units work together as registration unit, ASAD unit, and financial unit and examination units. This process involves four parts to get the job ...
This model is most effective for developing business software systems because it is easier to change the process to reflect the updated customer requirements. The basic idea behind incremental method is to develop a system through repeated cycles (iterative) and in smaller portions at a time (incremental), thereby allowing software developers to take advantage of what was learned during development of earlier parts or versions of the system. Learning comes from both the development and use of the system, where possible key steps in the process start with a simple implementation of a subset of the software requirements and iteratively enhance the evolving versions until the full system is implemented. At each iteration, design modifications are made and new functional capabilities are
Agile software development is a group of software development methods based on iterative and incremental development, where requirements and solutions evolve through collaboration between self-organizing, cross-functional teams. It promotes adaptive planning, evolutionary development and delivery, a time-boxed iterative approach, and encourages rapid and flexible response to change.
SDLC (Software Development Life Cycle) is a process which consists of series of well-planned actions to develop or make changes in the software products. This chapter provides description on the SDLC basics, SDLC models and their application in the software industry. This gives directions for the quality stakeholders of any Software project and the product or project managers.
The system development life cycle, also know as the SDLC, is the process of designing and developing a system or software to meet certain requirements. (“System development life,”). This cycle involves many different phases, in which the system is planned, analyzed, designed, implemented, and tested. There are five major phases in the system development life cycle: systems planning, systems analysis, systems design, systems implementation, and systems security and support. Each of these phases has a particular responsibility and certain tasks are perfumed in each phase.
Given the time, it takes to develop large sophisticated software systems it not possible to define the problem and build the solution in a single step. Requirements will often change throughout a projects development, due to architectural constraints, customer’s needs or a greater understanding of the original problem. Iteration allows greater understanding of a project through successive refinements and addresses a projects highest risk items at every stage of its lifecycle. Ideally each iteration ends up with an executable release – this helps reduce a projects risk profile, allows greater customer feedback and help developers stay focused.
In incremental model the whole requirements are divided into different builds. Multiple development cycles take place here. Cycles are divided up into smaller, more easily managed modules. Each module passes through the requirements, design, implementation and testing phases. A working version of software is produced during the first module.Each sub...
What is the waterfall methodology? According to several software engineering sites, the waterfall methodology is also known as the linear-sequential life cycle model and also known as the traditional approach to software development. The waterfall model is as follows: Requirement of gathering and analysis, flowing down to, System design, then flowing down to Implementation, followed by Testing, and then Deployment of the system, and the final phase of Maintenance. The idea of the waterfall approach is that once a phase is completed, the process continues to move down the chain until all of the phases are completed and there is a product to deliver; the method is unidirectional. The waterfall approach is known for not allowing changes to be implemented passed the requirement gathering and analysis phase.
A software development methodology is a standard proven process which helps programmers, architects, system analysts and others to make a well controlled and an efficient progress in the high quality software development.