Agile Development Practices Quiz

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What is one of the main limitations faced by individuals adopting the customer role in Agile development?

  • They believe their contribution ends after providing requirements. (correct)
  • They often assist in the testing process.
  • They actively participate in code reviews.
  • They have full-time availability to work with the development team.

What is a primary characteristic of test automation in Agile software development?

  • Tests must be manually executed each time changes are made.
  • Tests are created after the task implementation.
  • Automated tests should not simulate input submission.
  • Tests are written as executable components before the task is implemented. (correct)

What is one major challenge faced in test-first development?

  • It is straightforward to judge the completeness of tests.
  • Programmers are always eager to write comprehensive tests.
  • Tests may not adequately check for all possible exceptions. (correct)
  • Programmers have ample time to write detailed tests.

How does pair programming facilitate knowledge sharing among team members?

<p>It enables programmers to work together and share insights on the code. (B)</p> Signup and view all the answers

What is an advantage of using an automated test framework like Junit?

<p>It simplifies writing and executing tests. (B)</p> Signup and view all the answers

What is the main objective of incremental planning in extreme programming?

<p>To record and prioritize requirements for better release management (B)</p> Signup and view all the answers

What is the purpose of using 'small releases' in extreme programming?

<p>To incrementally add functionality that provides business value (C)</p> Signup and view all the answers

What does 'test-first development' ensure in extreme programming?

<p>Tests for new features are written before the features themselves (D)</p> Signup and view all the answers

What is the role of refactoring in extreme programming?

<p>To continuously improve the code by simplifying and maintaining it (C)</p> Signup and view all the answers

How does pair programming contribute to the development process?

<p>By having developers check each other's work for better quality assurance (A)</p> Signup and view all the answers

What is collective ownership in extreme programming aimed at achieving?

<p>To ensure all developers can contribute to any part of the codebase (B)</p> Signup and view all the answers

What is the significance of continuous integration in extreme programming?

<p>To ensure all completed tasks are immediately added to the system (B)</p> Signup and view all the answers

What does the practice of 'simple design' entail in extreme programming?

<p>Designing only to meet the current needs without unnecessary complexity (B)</p> Signup and view all the answers

What is the primary aim of agile methods in software development?

<p>To reduce overheads in the software process (D)</p> Signup and view all the answers

Which phase is NOT part of the spiral model process?

<p>Finalize the product specifications (D)</p> Signup and view all the answers

Which statement best reflects the values expressed in the agile manifesto?

<p>Individuals and interactions are valued over processes and tools (D)</p> Signup and view all the answers

How does the spiral model primarily address risks during the software development process?

<p>By addressing high-risk problems first in each cycle (C)</p> Signup and view all the answers

What is one of the key characteristics of agile methods compared to traditional methods?

<p>Quickly evolving working software (D)</p> Signup and view all the answers

Which of the following phases is NOT included in the functional modules development process?

<p>Market analysis (D)</p> Signup and view all the answers

What is the primary focus of the spiral model in software development?

<p>Risk-driven iterative development (D)</p> Signup and view all the answers

In agile methods, what is considered more valuable than detailed documentation?

<p>Working software (A)</p> Signup and view all the answers

Which of the following best describes a significant drawback of the software design methods from the 1980s and 1990s?

<p>Excessive documentation and overheads (D)</p> Signup and view all the answers

What is the goal of the application generation phase in functional module development?

<p>To create software based on modeling (D)</p> Signup and view all the answers

What is the primary purpose of refactoring in software development?

<p>To make code changes easier by improving code structure. (B)</p> Signup and view all the answers

Which of the following best describes test-driven development?

<p>Tests are written before the code to clarify requirements. (B)</p> Signup and view all the answers

What is an example of refactoring mentioned in the content?

<p>Re-organization of a class hierarchy to remove duplicate code. (B)</p> Signup and view all the answers

What role does customer involvement play in the testing process?

<p>The customer develops acceptance tests for upcoming features. (B)</p> Signup and view all the answers

How does XP propose to handle unforeseen changes in software development?

<p>By performing constant code improvements through refactoring. (B)</p> Signup and view all the answers

What is a key feature of automated testing in XP?

<p>All component tests run each time a new release is built. (D)</p> Signup and view all the answers

What does architecture refactoring entail?

<p>Implementing fundamental changes that can be costly. (A)</p> Signup and view all the answers

What benefit does constant code improvement provide?

<p>Reduced need for documentation due to better understandability. (B)</p> Signup and view all the answers

What does XP emphasize regarding testing after code changes?

<p>Testing should occur after every change made to the code. (A)</p> Signup and view all the answers

Which of these is NOT a characteristic of test-first development?

<p>Tests written after coding is completed. (A)</p> Signup and view all the answers

What is one primary benefit of pair programming?

<p>Facilitates knowledge sharing among team members. (D)</p> Signup and view all the answers

How does Agile project management differ from traditional project management?

<p>It emphasizes iterative and incremental development. (B)</p> Signup and view all the answers

In the context of Scrum, what is the primary responsibility of the development team?

<p>To develop software and essential project documents. (C)</p> Signup and view all the answers

What characterizes a potentially shippable product increment in Scrum?

<p>It is in a finished state, ready for final product incorporation. (B)</p> Signup and view all the answers

During the Scrum phases, what happens in the initial phase?

<p>General objectives and software architecture are established. (A)</p> Signup and view all the answers

What is one characteristic of a Scrum sprint cycle?

<p>Each cycle results in a complete and deliverable increment. (D)</p> Signup and view all the answers

What does the project closure phase in Scrum primarily focus on?

<p>Wrapping up the project and completing documentation. (C)</p> Signup and view all the answers

What is the ideal size of a Scrum development team?

<p>6 to 7 members. (C)</p> Signup and view all the answers

What role does the project manager play in traditional project management compared to Agile?

<p>They are more focused on strict deadlines. (C)</p> Signup and view all the answers

Which statement about the efficiency of pair programming is correct?

<p>Pair programming can be more efficient than two programmers working separately. (A)</p> Signup and view all the answers

Flashcards

Incremental Planning

A method of software development where requirements are broken down into small, manageable stories and prioritized based on value and time available. Developers then further decompose these stories into tasks for implementation.

Small Releases

Frequent releases of software that progressively add functionality to the initial version. Each release focuses on delivering a minimal useful set of features that provide value to the user.

Simple Design

The design should be sufficient to meet the current requirements and avoid unnecessary complexity. Focusing on simplicity and avoiding over-engineering.

Test-First Development

A practice where automated unit tests are written for a new piece of functionality before the functionality itself is implemented. This ensures that the code meets expectations and avoids introducing errors.

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Refactoring

A continuous process of improving the codebase by cleaning it up, simplifying it, and eliminating redundancies. This helps maintain code readability and maintainability.

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Pair Programming

Two developers work together on the same task, checking each other's code and providing support. This promotes knowledge sharing, reduces errors, and improves overall code quality.

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Collective Ownership

Encourages all developers to take ownership of the entire codebase, eliminating silos and promoting collaboration. Anyone can contribute to any part of the system.

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Continuous Integration

Integrating new code changes into the main system as soon as they are completed. After integration, all unit tests are run to ensure that new code doesn't break existing functionality.

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Agile Methods

A software development approach that emphasizes iterative cycles, rapid prototyping, and customer feedback to deliver working software quickly and adapt to changing requirements.

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Parallel Development

A software development process that involves breaking down a large project into smaller, manageable parts, developing each part in parallel, and then integrating the finished parts into a complete system.

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Waterfall Model

A software development model that follows a structured, sequential approach, starting with requirements gathering and ending with deployment and maintenance.

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Spiral Model

A software development model that iteratively builds upon previous iterations while prioritizing addressing the highest risks associated with the project.

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Risk Assessment in Spiral Model

The first phase of the Spiral Model focuses on identifying and addressing the key risks and potential challenges that are most likely to hinder the project.

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Individuals and Interactions

A foundational principle of Agile Methods that emphasizes the importance of individuals and their collaboration over rigid processes and tools.

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Working Software

A core value of Agile Methods; it prioritizes working software that delivers value to customers over extensive documentation.

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Customer Collaboration

A crucial principle of Agile Methods; it emphasizes the continuous collaboration with customers throughout the software development process.

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Responding to Change

A key value of Agile Methods; it advocates for adaptability and flexibility to accommodate changing requirements and market dynamics.

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Agile Manifesto

A set of principles and practices that guide Agile software development, emphasizing collaboration, customer focus, and iterative development.

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Constant Code Improvement

A practice in XP where the code is constantly improved (refactored) to make future changes easier, even if there's no immediate need for them.

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Architecture Refactoring

A type of refactoring involving changes to the overall architecture of the software, often more expensive to implement compared to smaller code improvements.

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Re-organizing Class Hierarchy

Refactoring example: Changing the class hierarchy to eliminate redundant code.

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Tidying Up Attributes and Methods

Refactoring example: Improving code clarity by making attributes and methods easier to understand.

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Replacing Code with Library Calls

Refactoring example: Replacing inline code with calls to pre-written functions in a library.

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Test-Driven Development

A specific type of test-first development where tests are written as automated code. These tests are run automatically every time new code is added, ensuring no errors are introduced.

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Customer Involvement in Testing

A core principle in XP where customers actively participate in testing and validation of software features.

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Acceptance Tests

Acceptance tests designed and implemented by customers in the team to verify whether new features meet their needs.

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Test Automation

The process of writing executable tests before writing the actual code. These tests aim to simulate user input and verify that the code produces the expected output.

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Development Team (Scrum)

A team of developers (usually no more than 7) responsible for developing software and related documents.

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Potentially Shippable Product Increment (Scrum)

A fully functional increment of the software, ready for release.

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Sprint Cycles (Scrum)

A series of sprints that focus on developing and delivering increments of the software.

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Outline Planning Phase (Scrum)

The first phase of Scrum, where the overall project goals and software architecture are established.

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Project Closure Phase (Scrum)

The final phase of Scrum, where documentation is completed, lessons are learned, and the project is officially concluded.

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Agile Project Management

An approach to project management that emphasizes iterative development and flexible adjustments to plans.

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Plan-Driven Project Management

A plan-driven approach to project management where specific tasks are scheduled in advance.

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Project Manager's Responsibility

The core responsibility of a software project manager is to deliver the software on time and within budget.

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Pair Programming Efficiency

Pair programming is a collaborative approach to coding that can be more efficient than individual work, leading to better code quality and knowledge sharing.

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Study Notes

Software Process Models

  • Software projects employ various models, categorized as classical models or agile methods.
  • Classical models include waterfall, prototyping, spiral, and V models.
  • Agile methods include extreme programming, iterative development, and RAD (Rapid Application Development).

Classical Models

  • Waterfall Model: A sequential, plan-driven process. All activities are planned and scheduled before starting. Each stage (requirements, design, implementation, testing, deployment, and maintenance) depends on the completion of the previous one.
  • Prototyping Model: A series of iterations focused on building and refining a prototype of the software. It starts with an initial model, refines it, then tests further iterations to fulfill requirements.
  • Spiral Model: A risk-driven, iterative approach that combines elements of waterfall and prototyping. Iterations start with the most risky component of the project, followed by risk analysis to refine these components.
  • V Model: An extension of the waterfall model that emphasizes verification and validation. It has a corresponding testing phase for each development phase.

Agile Methods

  • Iterative Model: Develops the system incrementally, introducing small iterations of all features. This helps meet initial scope and allows for feedback. It allows constant enhancement of the system.
  • Rapid Application Development (RAD) Model: An iterative approach that relies on prototyping. Functional modules are developed in parallel, to meet project timelines. Key phases include business modeling, data modeling, process modeling, application generation, and testing & turnover.
  • Extreme Programming (XP): An iterative approach focusing on rapid development and frequent feedback. Characterized by incremental delivery, test-first development, small releases, simple design, and continuous refactoring. It emphasizes frequent releases of new versions. Test runs must be successful in every release build.
  • Agile Manifesto: This set of values guide agile methods; supporting individuals and interactions over processes and tools, working software over comprehensive documentation, customer collaboration over contract negotiation, and responding to change over following a plan. It emphasizes adaptability and customer collaboration.

Scrum

  • Scrum is an agile project management methodology. It's an iterative framework to manage the software development process.
  • Key phases in Scrum include the initial planning phase, sprint cycles, and project closure.
  • Scrum emphasizes iterative development and managing tasks within defined timeframes (sprints).

Scrum Terminology

  • Development Team: A self-organizing group of developers, typically 7 people or less, responsible for the software development and other project documentation.
  • Potentially Shippable Product Increment: The unit of deliverable produced during a sprint within Scrum. The product increment ideally should be ready for immediate integration into the final product.
  • Product Backlog: This list of tasks defines the requirements for the product in Scrum. These can be feature definitions, software requirements, user stories, or documentation requirements.
  • Product Owner: The product owner identifies the product features and prioritizes them for development. They continuously review the product backlog.
  • Scrum Master: The Scrum Master ensures the team follows Scrum and guides the team on managing the software development process.

Agile Method Applicability

  • Suitable for product development (small & medium-sized projects), and custom system development within an organization with a dedicated customer and few project regulations.

Testing in Agile Methods

  • Testing is central to Agile, particularly XP (Extreme Programming).
  • Test-first development involves designing tests before the code implementation.
  • Automated testing harnesses are used for each build to ensure correctness and catch problems immediately.

Pair Programming

  • Pair programming involves two programmers working together on a single task.
  • This improves common code ownership and distributes knowledge across the team. It allows for informal code review at each step.

Problems with Test-First Development

  • Focusing on programming rather than testing can lead to incomplete or flawed tests, especially in complex interactions.
  • Writing comprehensive tests for every interaction in complex systems can prove difficult.

Refactoring

  • Refactoring is an ongoing code improvement practice.
  • Simplifying code, streamlining code architecture, and removing redundant code are examples of refactoring.

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