Questions and Answers
What was the primary approach to software development used in the 1980s?
Agile processes are primarily rigid and not adaptable to changes.
False
What is the aim of the agile process?
To deliver the working model of software quickly to the customer.
Which method is known as the best example of an agile process?
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As the software project progresses, the cost of changes increases _____.
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What impact does the agile approach have on accommodating changes late in a software project?
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Incremental delivery combined with agile practices can help control the cost of changes.
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Study Notes
Agility and Agile Process Model
- In the 1980s, software development relied on a heavy weight, plan-based approach, which was inflexible and required rework for changes.
- This plan-based method included unnecessary tasks that did not directly relate to the software product.
- The 1990s saw the emergence of agile processes, which prioritize flexibility and direct engagement with the software itself.
- Agile processes are lightweight and people-focused, emphasizing collaboration over extensive documentation.
- An essential aspect of agile methodology is its iterative nature, enabling rapid delivery of functional software to customers.
- Extreme Programming (XP) is a prominent example of an agile process, showcasing its principles.
Conventional Software Development Methodology
- Change management in software projects becomes increasingly costly as development progresses, leading to nonlinear cost escalation.
- Changes are easiest to implement during the requirements gathering phase; modifications at this stage can include updating usage scenarios or function lists.
- Suggesting changes during the testing phase necessitates significant adjustments to the architectural design, affecting multiple stages of the development lifecycle and increasing costs.
Agile Methodology
- Proponents argue that the agile approach allows for late-stage changes with minimal cost and time impact compared to conventional methods.
- Combining incremental delivery with agile practices such as continuous unit testing and pair programming can help control the costs associated with changes.
- A graphical representation often illustrates how the choice of software development approach dramatically influences development costs linked to changes.
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Description
This quiz covers the transition from traditional plan-based software development to agile processes that emerged in the 1990s. It examines the limitations of the rigid methodologies used in the 1980s and highlights the flexibility offered by agile methods in adapting to changing requirements. Participants will test their understanding of these critical software development concepts.
