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Lean software development models
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In the continuously growing field of software engineering the new paradigms are being introduced day by day to enhance the efficiency of software development process. Continuously new and better ways for developing software application at small business or at enterprise level are looking for. In cost reduction and fast delivery the Lean Software Development (LSD) is attracting the industry. A lot of study and research is being conducted in LSD as it is still in evolving process. Recently “from agile to lean” agile software development using lean principles has been given noticeable attention. However a complete development cycle fulfilling all the lean principles has not been proposed yet. To introduce a new “Lean” development model consisting of all the development phases is the state of the art of the research. The aim is to propose a new Life cycle model; a complete cycle with high goals and requirement tractability as well as requirement change control. Specific to lean development the model will be based on other software engineering models. It will be used for two main purposes; the research and its practice in real world and use as a model to develop software that will be opera table. Efficient model by reducing the time and controlling project cost in continues maintenance process is the goal of research. The unnecessary delay in whole development be reduced is its working efficiency. To deliver the project faster, to increase the maintainability and efficiency during and after the development of project the model will be developed.
UNIVERSITY OF AGRICULTURE, FAISALABAD
(Department of Computer Science)
(Synopsis for the degree of MS in Computer Science)
Title: An Efficient Lean Software Development Model : LSD-Model
Dat...
... middle of paper ...
...find out the efficiency of the proposed model. Model will use iterations and increments as moving from sequential to parallel implementations could improve the time saving and speed of development (Maglyas et al., 2012).
Lean principles are customer centric, the companies those are already applying Lean methodologies with development models continually work with their customers to learn what customer need, the improvements and how new modules can be added designed and implemented to meet their needs. Lean principles are also called Six-sigma methods those not only reduce inefficiencies and waste, but also focus on continuous improvements (Raffo et al., 2010).
Efficient software development model will have six sigma of lean combined with software development life cycle (SDLC). At the end an analysis by survey reports, in which real world experiences will be reported.
The method of Lean Six Sigma is the combination of two business techniques that includes Lean Manufacturing and Six Sigma. Lean manufacturing focuses on improving the flow of the organization by training highly skilled employees to increase the overall speed while Six Sigma focuses on improving current performance and overall accuracy. In most cases, blending both Lean and Six Sigma can be costly; however the end result can have create an organization that focuses on quality, accuracy, and speed to meet the goal which is profitability.
how applying six sigma methodology can do to address these problems. According to the author the two most common causes of software project failures are customer requirement problems and estimating problems. He offers two case studies as examples of how six sigma can address these aspects of software implementation. The first case study discusses some of the ways six sigma can help with customer requirements, and the second case discusses the role of six sigma in schedule estimating.
As you can see from the figure the lean six sigma is customer driven, targets variation, focuses
The software development life cycle (SDLC) is a framework defining tasks performed at each step in the software development process.
A LEAN Company is our best description and our business philosophy (creating more value for customers with less resources), which pursues to deliver what the customer wants, when they want it, at maximum value with minimum misuse.Through the application of LEAN, we achieve more fulfillment as it helps to reduce the possibility to constantly be fighting a battle against difficulties. Besides, we promote a Continuous Improvement Culture in our performance.
Since Lean is a continuous improvement approach, a critical difference between the 2 systems was that the Lean approach instilled smaller teams of workers instead of a larger bunch. Even with smaller team, to ensure that there is not a sense of creeping boredom, the members were to switch jobs. This ensured that a person was
The methodology of Lean Six Sigma is the merger of two business tools that includes Lean Manufacturing and Six Sigma. Six Sigma focuses on improving current business processes and performance while Lean Manufacturing focuses on the improvement of the processes of an organization by using highly skilled employees to increase speed and quality. Combining the two methodologies creates an organization that focuses on quality, efficiency and speed to lower operational costs and increase profits. By following the Lean Six Sigma methodology, many companies have attempted to create a lean, waste-free environment ultimately at the expense of the employee and occasionally at the expense of the organization.
According to Christopher and Towill (2001), there are mainly three ways to combine lean and leagile. The first hybrid approach is the Pareto rule, which means that the dominant 20% of products should use leanness and make to stock. While the remaining 80% products with less share of revenue should use agility. The second hybrid approach is about using lean approach for the base level of demand, while for the peak season or flexible demand, manufacturer can use agility
The procedure of Lean Manufacturing has been the principle concerns and issues of numerous manufacturing companies all through the world. Numerous procedures paving the way to lean manufacturing have affected this significantly, for example, Interchangeable parts, Just in Time Production, the Ford Assembly line, and the Toyota Production Systems.
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).
There is a lot of literature on the concept of continuous improvement (CI). Studies show that CI is very important to creating competitive advantages in highly competitive industries such as the automobile industry (Bhuiyan & Baghel 2005; Li et al. 2009; Schaeffer, Cadavid, & Backström 2010). These studies suggest that manufacturing firms use CI to eliminate waste in all organisational systems and processes (Bhuiyan & Baghel 2005; Li et al. 2009). Currently, manufacturing firms use lean manufacturing, six sigma, lean six sigma, and the Kaizen methods of CI methodologies to reduce wastages, simplify the production line, and improve quality (Swink & Jacobs 2012).
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.
The systems planning phase is the first phase completed in the SDLC. It encompasses evaluating the feasibility and the cost of the system, identifying the risks involved with implementing the system, and determining the responsibilities of each of the team members. To begin the planning phase, a systems request is submitted to the IT department, detailing the problems and changes to be made in a system. (Rosenblatt, 2014). It is important to note that the request may be a large, significant request, or it can be a smaller, more minor request; however, each request should be addressed using the systems development life cycle. After the request has been made, a feasibility study is conducted that determines the costs and benefits of the new or improved system. The study then recommends a strategy that is best for the system in terms of technical, monetary, and time factors.
Most of the software development projects change just during the development is in process. This is the reason that agile methodology is best for these projects. There is a room for change in them. Software developers follow these methods and this is the reason that they have further modified these methods according to the different types of projects they confront in their development time.
The Lean Startup method is a scientific approach to makes startups fast respondent to customers wants and needs. Throgh Lean startup method entrepereneurs know managing startups effectively in many aspects and also the time to pivot