Software Testing Quick Guide Learn Software Testing in simple and easy steps starting from its Overview, Myths, QA, QC Testing, ISO Standards, Types of Testing. Focusing on what all best practices to be followed for Globalization Internationalization and Localization Testing. Also we are discussing all common bugs found. Software Testing Levels Learn Software Testing in simple and easy steps starting from its Overview, Myths, QA, QC Testing, ISO Standards, Types of Testing. Software development process Wikipedia. In software engineering, a software development process is the process of dividing software development work into distinct phases to improve design, product management, and project management. It is also known as a software development life cycle. The methodology may include the pre definition of specific deliverables and artifacts that are created and completed by a project team to develop or maintain an application. 1Most modern development processes can be vaguely described as agile. Other methodologies include waterfall, prototyping, iterative and incremental development, spiral development, rapid application development, and extreme programming. Some people consider a life cycle model a more general term for a category of methodologies and a software development process a more specific term to refer to a specific process chosen by a specific organization. For example, there are many specific software development processes that fit the spiral life cycle model. The field is often considered a subset of the systems development life cycle. HistoryeditThe software development methodology also known as SDM framework didnt emerge until the 1. According to Elliott 2. SDLC can be considered to be the oldest formalized methodology framework for building information systems. The main idea of the SDLC has been to pursue the development of information systems in a very deliberate, structured and methodical way, requiring each stage of the life cyclefrom inception of the idea to delivery of the final systemto be carried out rigidly and sequentially2 within the context of the framework being applied. The main target of this methodology framework in the 1. Information systems activities revolved around heavy data processing and number crunching routines. 2Methodologies, processes, and frameworks range from specific proscriptive steps that can be used directly by an organization in day to day work, to flexible frameworks that an organization uses to generate a custom set of steps tailored to the needs of a specific project or group. In some cases a sponsor or maintenance organization distributes an official set of documents that describe the process. Specific examples include 1. It is notable that since DSDM in 1. RUP have been agile methodologies yet many organisations, especially governments, still use pre agile processes often waterfall or similar. Software process and software quality are closely interrelated some unexpected facets and effects have been observed in practice 3Since the early 2. Among these another software development process has been established in open source. The adoption of these best practices known and established processes within the confines of a company is called inner source. PracticeseditSeveral software development approaches have been used since the origin of information technology, in two main categoriescitation needed. Typically an approach or a combination of approaches is chosen by management or a development teamcitation needed. Traditional methodologies such as waterfall that have distinct phases are sometimes known as software development life cycle SDLC methodologiescitation needed, though this term could also be used more generally to refer to any methodology. A life cycle approach with distinct phases is in contrast to Agile approaches which define a process of iteration, but where design, construction, and deployment of different pieces can occur simultaneouslycitation needed. Continuous integrationeditContinuous integration is the practice of merging all developer working copies to a shared mainline several times a day. 5Grady Booch first named and proposed CI in his 1. Extreme programming XP adopted the concept of CI and did advocate integrating more than once per day perhaps as many as tens of times per day. PrototypingeditSoftware prototyping is about creating prototypes, i. The basic principles are 1Prototyping is not a standalone, complete development methodology, but rather an approach to try out particular features in the context of a full methodology such as incremental, spiral, or rapid application development RAD. Attempts to reduce inherent project risk by breaking a project into smaller segments and providing more ease of change during the development process. The client is involved throughout the development process, which increases the likelihood of client acceptance of the final implementation. While some prototypes are developed with the expectation that they will be discarded, it is possible in some cases to evolve from prototype to working system. A basic understanding of the fundamental business problem is necessary to avoid solving the wrong problems, but this is true for all software methodologies. Incremental developmenteditVarious methods are acceptable for combining linear and iterative systems development methodologies, with the primary objective of each being to reduce inherent project risk by breaking a project into smaller segments and providing more ease of change during the development process. There are three main variants of incremental development 1A series of mini Waterfalls are performed, where all phases of the Waterfall are completed for a small part of a system, before proceeding to the next increment, or. Overall requirements are defined before proceeding to evolutionary, mini Waterfall development of individual increments of a system, or. The initial software concept, requirements analysis, and design of architecture and system core are defined via Waterfall, followed by incremental implementation, which culminates in installing the final version, a working system. Rapid application developmentedit. Rapid Application Development RAD Model. Rapid application development RAD is a software development methodology, which favors iterative development and the rapid construction of prototypes instead of large amounts of up front planning. The planning of software developed using RAD is interleaved with writing the software itself. The lack of extensive pre planning generally allows software to be written much faster, and makes it easier to change requirements. The rapid development process starts with the development of preliminary data models and business process models using structured techniques. In the next stage, requirements are verified using prototyping, eventually to refine the data and process models. These stages are repeated iteratively further development results in a combined business requirements and technical design statement to be used for constructing new systems. 7The term was first used to describe a software development process introduced by James Martin in 1. According to Whitten 2. Information Engineering, with prototyping techniques to accelerate software systems development. 7The basic principles of rapid application development are 1Key objective is for fast development and delivery of a high quality system at a relatively low investment cost. Attempts to reduce inherent project risk by breaking a project into smaller segments and providing more ease of change during the development process. Aims to produce high quality systems quickly, primarily via iterative Prototyping at any stage of development, active user involvement, and computerized development tools. These tools may include Graphical User Interface GUI builders, Computer Aided Software Engineering CASE tools, Database Management Systems DBMS, fourth generation programming languages, code generators, and object oriented techniques. Key emphasis is on fulfilling the business need, while technological or engineering excellence is of lesser importance. Project control involves prioritizing development and defining delivery deadlines or timeboxes. If the project starts to slip, emphasis is on reducing requirements to fit the timebox, not in increasing the deadline. Generally includes joint application design JAD, where users are intensely involved in system design, via consensus building in either structured workshops, or electronically facilitated interaction. Active user involvement is imperative. Iteratively produces production software, as opposed to a throwaway prototype. Produces documentation necessary to facilitate future development and maintenance. Standard systems analysis and design methods can be fitted into this framework.
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