Iterative
The waterfall Project Management model is a skeleton for system development. It advances consecutively through a succession of phases, preliminarily with system feasibility analysis and concluding up to system release and maintenance.
rad model is used when there is a time constraint............ this model is suitable for big projects where the customer requirements are clear
A waterfall model would be a good approach for that type of project.
Not necessarily. If the kinds of software they develop are similar, then having a single process model can be a good idea. If they are involved in a wide variety of types of development projects then some models might be more suited to some projects than others. A company needs to be flexible. So they may be able to classify the types of projects they do and apply the appropriate model to a particular type.
Software development life cycle models show the ways to navigate through the complex process of software building. A project's quality, timeframes, budget, and ability to meet the stakeholders' expectations largely depend on the chosen model.
Agile Development process
When we are talking about a big project we Use Water fall model. Water fall model has total of five stages.
The waterfall Project Management model is a skeleton for system development. It advances consecutively through a succession of phases, preliminarily with system feasibility analysis and concluding up to system release and maintenance.
specialized process model is a combination of both component based development model (CBD) and formal method model
Production Support Process Model
rad model is used when there is a time constraint............ this model is suitable for big projects where the customer requirements are clear
A waterfall model would be a good approach for that type of project.
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General Software Process Models are 1. Waterfall model: Separate and distinct phases of specification and development. 2. Prototype model. 3. Rapid application development model (RAD). 4. Evolutionary development: Specification, development and validation are interleaved. 5. Incremental model. 6. Iterative model. 7. Spiral model. 8. Component-based software engineering
Software systems are now omnipresent. Software is used to help run manufacturing industry, schools, universities, health care, finance and government. The computational power and sophistication of computers have increased ever since, while their costs have been reduced dramatically. The specification, development, management and evolution of these software systems make up the discipline of software engineering. The more powerful a computer is the more sophisticated programs it can run. Even simple software systems have a high inherent complexity so that engineering principles have to be used in their development. The discipline of software engineering discusses systematic and cost-effective software development approaches, which have come out from past innovations and lessons learnt from mistakes. Software Engineering principles have evolved over the past fifty years of contributions from numerous researches and software professionals. To solve actual problems in an industry setting, a software engineer or a team of engineers must incorporate a development strategy that encompasses the process, methods, and tools layers and the generic phases. This strategy is often referred to as a process model or a software engineering paradigm. A process model for software engineering is chosen based on the nature of the project and application, the methods and tools to be used, and the controls and deliverables that are required. In the software development process the focus is on the activities directly related to production of the software, for example, design coding, and testing. A development process model specifies some activities that, according to the model, should be performed, and the order in which they should be performed. As the development process specifies the major development and quality assurance activities that need to be performed in the project, the development process really forms the core of the software process. The management process is decided based on the development process. Due to the importance of development process, various models have been proposed.
Major difference between waterfall and iterative model is that waterfall model has a linear process in which full product is available after the last phase, while incremental model full product is available after several such phases.