Write down 2 differences between the Waterfall Model and the Agile model.
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You are a financial analyst working for a dynamic young company. One of the founders asks you for your opinion on using an Agile versus Waterfall project management approach for systems development and asks you to contrast the two for each of the following project attributes. Label each of the following descriptions with the correct project attribute from the word bank. Identify whether each description applies to Agile or Waterfall. Word Bank: - stages - goal - scope - schedule and budget - metrics for progress - metrics for success - availability of working product or system Set, based on predefined scope of project Create a bare-bones application or system that performs at a minimal level and then iterate to improve it Measured against the project plan and well documented Measured by whether the project delivery is on time, within budget, and to scope Well defined prior to starting development More flexible in that it can be set or based on feedback from each iteration Typically not available until at least the testing stage Linear and inflexible, with each stage of the project completed before the next stage begins Normally available in early phases of the project Measured by whether the project meets end-user requirements Create a completed application or system Iterative and flexible, with the ability to move forward and backward across stages if necessary Measured against a minimal level of performance with minimal documentation Undefined prior to starting with development
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Question 8 Summarize, in one page, the content of the article: Alshamrani, A. and Bahattab, A. (2015). A comparison between three SDLC models: waterfall model, spiral model, and incremental/iterative model. International Journal of Computer Science Issues (IJCSI), 12(1), pp. 106-111. The article by Alshamrani and Bahattab (2015) compares three different software development life cycle (SDLC) models: the waterfall model, the spiral model, and the incremental/iterative model. The authors discuss the advantages and disadvantages of each model and provide insights into their practical applications. The waterfall model is a linear sequential approach to software development, where each phase is completed before moving on to the next. It follows a strict top-down approach and is characterized by its rigid structure. The authors highlight that the waterfall model is suitable for projects with well-defined requirements and a stable scope. However, it lacks flexibility and can lead to delays if changes are required during the development process. The spiral model, on the other hand, is an iterative approach that combines elements of both waterfall and prototyping models. It emphasizes risk analysis and allows for incremental development. The authors note that the spiral model is particularly useful for large and complex projects where risks need to be identified and managed effectively. However, it can be time-consuming and costly due to the iterative nature of the model. The incremental/iterative model is a flexible approach that focuses on delivering software in small increments. It allows for continuous feedback and incorporates changes throughout the development process. The authors highlight that this model is suitable for projects with evolving requirements and a need for frequent customer involvement. However, it can be challenging to manage and requires effective communication and coordination among team members. In conclusion, the article provides a comprehensive comparison of the waterfall model, spiral model, and incremental/iterative model. It highlights the strengths and weaknesses of each model and discusses their practical applications in software development. The authors emphasize the importance of selecting the appropriate SDLC model based on project requirements and constraints.
a. Identify a disadvantage of the traditional waterfall model for software development. b. Identify an advantage of the traditional waterfall model for software development.
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