Agile Software Engineering and Scrum Overview

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Questions and Answers

What is the main purpose of the Product Backlog in an Agile environment?

  • To provide a timeline for feature implementation.
  • To record the results of completed assessments.
  • To prioritize and describe items for the team to work on. (correct)
  • To outline all tasks the team has completed.

Which activity involves breaking down product backlog items into more detailed tasks?

  • Creation
  • Estimation
  • Refinement (correct)
  • Prioritization

What does the term 'engineering improvement' refer to in the context of the features mentioned?

  • User interface adjustments for better accessibility.
  • Enhancements made to existing code for better maintainability. (correct)
  • Features that are only applicable to specific user groups.
  • New functionalities added to the system.

Which of the following items would be considered a user story?

<p>As a teacher, I want a GUI for children with limited reading ability. (A)</p> Signup and view all the answers

How does the team determine which Product Backlog Items (PBIs) to move to the Sprint Backlog?

<p>By prioritizing items that can be completed during the Sprint. (B)</p> Signup and view all the answers

What could happen during the prioritization step of the Product Backlog?

<p>Items are reordered based on new information. (B)</p> Signup and view all the answers

Which of the following statements is true regarding the implementation of user data encryption?

<p>It is an essential enhancement for protecting user privacy. (B)</p> Signup and view all the answers

When new items are added to the Product Backlog, what types of items can these be?

<p>New features, engineering improvements, or process activities. (B)</p> Signup and view all the answers

What is the primary role of a ScrumMaster in a Scrum team?

<p>To facilitate the effective use of Scrum (B)</p> Signup and view all the answers

What does the term 'Product Backlog' refer to?

<p>A to-do list of features, bugs, and improvements not yet completed (B)</p> Signup and view all the answers

During what time frame is a sprint typically conducted?

<p>Two to four weeks (C)</p> Signup and view all the answers

What is the purpose of the daily Scrum meetings?

<p>To review progress and discuss work for the day (B)</p> Signup and view all the answers

What defines a 'Potentially shippable product increment'?

<p>An output high enough in quality to be deployed for customer use (D)</p> Signup and view all the answers

Which element helps keep track of work items during a sprint?

<p>Sprint backlog (B)</p> Signup and view all the answers

How does a self-organizing team operate in a Scrum environment?

<p>They choose how to accomplish their work and make decisions collaboratively (B)</p> Signup and view all the answers

What feature distinguishes a Minimum Viable Product from a Potentially shippable product increment?

<p>It has enough features to make it marketable to most customers (B)</p> Signup and view all the answers

What is the purpose of velocity estimation in Agile software development?

<p>To estimate how many PBIs can be completed in a sprint (D)</p> Signup and view all the answers

Which of the following is a key activity during sprint planning?

<p>Identifying PBIs with higher priority (A)</p> Signup and view all the answers

How should sprint execution be approached if not all sprint backlog items can be completed?

<p>The unfinished items are returned to the product backlog (A)</p> Signup and view all the answers

What is the average velocity if a team implements 17, 14, 16, and 19 story points over four sprints?

<p>16 story points (B)</p> Signup and view all the answers

What should a sprint retrospective primarily focus on?

<p>Reflecting on process improvement for future sprints (B)</p> Signup and view all the answers

Which statement is true regarding Fibonacci numbers in estimation?

<p>Fibonacci numbers can help differentiate close estimates (D)</p> Signup and view all the answers

What is typically NOT a focus area when the team agrees on a sprint goal?

<p>Total team budget for the sprint (D)</p> Signup and view all the answers

During sprint planning, how long should the meeting ideally last?

<p>No more than one day to maintain efficiency (A)</p> Signup and view all the answers

What does it indicate if all unit tests have executed successfully?

<p>Code quality has been verified through testing. (C)</p> Signup and view all the answers

Who should primarily engage in external interactions within a Scrum team?

<p>Only the ScrumMaster and Product Owner. (C)</p> Signup and view all the answers

What is the primary purpose of estimating PBIs?

<p>To determine which PBIs to prioritize for implementation (B)</p> Signup and view all the answers

What is the role of the ScrumMaster concerning project reporting?

<p>To provide accurate information on project progress. (D)</p> Signup and view all the answers

What does the successful execution of integration tests signify?

<p>The code has been integrated with the project codebase without errors. (A)</p> Signup and view all the answers

What metric is commonly used to estimate the effort required for PBIs?

<p>Time-based metrics (C)</p> Signup and view all the answers

Which of the following statements about story points is true?

<p>They are estimated using a comparison with a baseline task. (D)</p> Signup and view all the answers

Which statement best describes external interactions in a Scrum setting?

<p>They should be minimized to reduce distractions for developers. (C)</p> Signup and view all the answers

What challenge does effort estimation face at the beginning of a project?

<p>Lack of prior experience with the work type (B)</p> Signup and view all the answers

What is the purpose of the Planning Poker technique in team-based estimation?

<p>To improve estimation accuracy through team discussions and consensus (B)</p> Signup and view all the answers

Which of the following is NOT a typical consideration when assigning story points?

<p>The financial cost of the task (B)</p> Signup and view all the answers

How do estimates generally evolve as the team gains experience?

<p>They typically improve over time and become more accurate (B)</p> Signup and view all the answers

Which of the following best describes the consensus-reaching process in Planning Poker?

<p>Teams make individual estimates that are revealed together followed by discussions (C)</p> Signup and view all the answers

What is the main purpose of a daily scrum meeting?

<p>To share progress and discuss problems from the previous day (D)</p> Signup and view all the answers

What typically happens to completed items during a scrum?

<p>They are removed from the sprint backlog (C)</p> Signup and view all the answers

How does Scrum encourage efficient scrum meetings?

<p>By organizing them as stand-up meetings (C)</p> Signup and view all the answers

What is the role of the product owner at the end of a sprint?

<p>To determine if the sprint goal has been achieved (B)</p> Signup and view all the answers

Which of the following practices is commonly associated with Scrum?

<p>Test automation (C)</p> Signup and view all the answers

What is included in the code completeness checklist?

<p>Code review by another team member (C)</p> Signup and view all the answers

What aspect of Scrum differentiates it from XP (Extreme Programming)?

<p>Scrum does not dictate specific technical practices (A)</p> Signup and view all the answers

During a sprint review, what is primarily discussed?

<p>New problems and improvements in work processes (B)</p> Signup and view all the answers

Flashcards

Product Backlog

A list of tasks (bugs, features, improvements) not yet completed by the Scrum team.

Development Team

A small, self-organizing team (5-8 people) responsible for building the product.

Sprint

A short period (2-4 weeks) for developing a product increment.

Potentially Shippable Product Increment

The output of a sprint, good enough for release to customers, not necessarily complete.

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Minimum Viable Product (MVP)

A potentially shippable product increment with enough features to be valuable to customers - more mature than initial product form .

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Velocity

An estimate of how much work a team can complete in a sprint.

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Sprint Backlog

The subset of Product Backlog items selected for a specific sprint.

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Scrum

A daily team meeting to review progress and plan the work for the day.

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Product Owner

The person responsible for prioritizing items in a product backlog and describing them to the team.

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ScrumMaster

A Scrum team coach who helps the team use Scrum effectively (acting as a project manager sometimes).

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Refinement

Analyzing and detailing product backlog items to increase clarity and understanding.

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Estimation

Assessing the amount of work required to implement a product backlog item.

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Prioritization

Reordering product backlog items based on changed circumstances or priorities.

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Feature (User Story)

A desired functionality or capability for a software product from a user's perspective.

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Development Activity

Actual work performed on a software project towards building the product.

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PBI Estimation

Assigning an effort estimate to Product Backlog Items (PBIs).

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Estimation Metric

A way to quantify the effort involved in implementing a PBI.

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Story Points

Arbitrary units for estimating PBI effort.

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Planning Poker

A team-based estimation approach for PBIs.

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Effort Estimation Challenges

Difficulty in accurately estimating effort, especially at the start of a project.

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Subjective Estimates

Estimates that aren't objectively accurate because of a lack of experience.

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Improving Estimates

Accuracies will grow as experience increases in a project.

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Consensus in Planning Poker

The goal to reach an agreement on the estimated points for a PBI or activity.

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External interactions

Interactions between team members and people outside the development team, such as stakeholders, clients, or management.

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Team-focused interactions

External interactions focused on acquiring resources, expertise, or support for the development team.

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Product-focused interactions

External interactions focused on gathering requirements, discussing timelines, or providing updates on the product's progress.

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ScrumMaster's role in external interactions

The ScrumMaster acts as a bridge between the development team and external parties, handling communication and ensuring clear information flow.

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Project management responsibilities

Development teams report on their progress to company management, often through the ScrumMaster who provides accurate information on the project's status.

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Team Velocity

The average amount of work (usually measured in story points) a team can complete in a sprint based on previous sprints.

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Sprint Goal

A specific, measurable target that the team aims to achieve during a sprint.

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What does a Sprint Planning Meeting involve?

The team collectively agrees on a sprint goal, chooses the highest priority product backlog items (PBIs) to work on during the sprint, and refines those PBIs.

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Sprint Execution

The team works on implementing the sprint backlog items.

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Sprint Reviewing (Sprint Retrospective)

The team reviews the work done during the sprint, discusses what went well, and what could be improved for future sprints.

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What happens to unfinished work during a sprint?

Uncompleted sprint backlog items are returned to the product backlog and prioritized for future sprints.

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How is velocity used?

Velocity is used to decide how many PBIs to include in a sprint, for better planning, and as a measure of productivity.

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What is a Sprint Backlog?

The subset of product backlog items selected to be completed during a specific sprint.

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Daily Scrum

A short daily meeting where team members discuss progress, identify problems, and plan the day's work. It's designed for coordination and problem-solving.

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Sprint Backlog Review

During a Scrum, the team revisits the Sprint Backlog, removing completed items and potentially adding new ones based on emerging information.

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Sprint Retrospective

A meeting held at the end of a sprint where the team reflects on their process, identifies areas for improvement, and celebrates successes.

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Code Completeness Checklist

A list of criteria used to assess whether the code developed during a sprint meets the agreed standards and is ready for review.

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Test Automation (in Agile)

The practice of using automated tools to execute tests regularly, ensuring consistent quality and detecting regressions.

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Continuous Integration (CI)

A practice where developers frequently integrate their code changes into a shared repository, enabling early detection of integration problems.

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Sprint Review (Sprint Retrospective Meeting)

A meeting at the end of a sprint where the team reviews the sprint's progress, discusses problems, and reflects on how to work better. The Product Owner determines if the sprint met its goal.

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Study Notes

Agile Software Engineering

  • Agile methods focus on iterative development and responding to change.

  • Scrum uses short cycles called sprints.

  • Sprints usually last 2-4 weeks.

  • In each sprint, a "shippable product increment" (potentially usable by users) is developed.

  • The product backlog contains all tasks required for the product.

  • The highest-priority backlog items are selected for implementation.

  • The sprint backlog is a subset of planned work for a sprint.

Scrum

  • Managers need information about development costs, timelines, and release dates.

  • Plan-driven development identifies deliverables and dates.

  • However, requirements and plans often change, so short-term plans are more practical.

  • An agile approach, like XP, plans incrementally.

  • Informal planning and minimal documentation are useful in responsive development.

  • Scrum provides a framework for managing agile projects, with additional roles like ScrumMaster and Product Owner.

  • Scrum and XP can complement each other.

Scrum Terminology

  • Product: The software being developed.

  • Product Owner: Leads feature refinement, helps test the product, and decides releases.

  • Product Backlog: Tasks that need to be completed (e.g., bugs, features, improvements).

  • Development Team: Self-organizing team (5-8 people) responsible for development.

  • Sprint: Short period (2-4 weeks) where a product increment is developed.

  • Scrum: Daily team meetings to review progress and plan.

  • ScrumMaster: Team coach who helps the team use Scrum effectively.

  • Minimum Viable Product (MVP): A "potentially shippable product increment" with enough features to be attractive to customers.

Scrum Process

  • Software development happens in fixed-length sprints (2-4 weeks).

  • Daily meetings (Scrums) are held to update everyone on progress, plan for the rest of the day, and discuss any problems.

  • Sprints should deliver "shippable product increments."

  • Uncompleted tasks are returned to the product backlog.

  • Sprint retrospective: Team retrospectives held after each sprint. The team reflects on what went well, what could be improved, and how to perform better in the future sprints.

Product Backlog

  • A list of features that need to be developed in order.

  • Includes features, activities, and improvements to the software.

  • Items are initially broad but are refined later.

  • Items have estimated difficulty and priority.

Product Backlog Activities

  • Refinement: Detailed description of Product Backlog Items (PBIs).

  • Estimation: Teams estimate the amount of work required for each item.

  • Creation: New Product Backlog Items are added to the list.

  • Prioritization: Reordering of PBIs based on changed circumstances or priorities.

PBI Estimation

  • PBIs need an estimate of the effort required to build them.

  • Estimation helps prioritize and allocate tasks for a sprint.

  • Story points, a relative estimation technique, avoids precise calculation.

  • Planning Poker is a method to estimate effort using relative values.

Velocity Estimation

  • Team velocity: sum of the estimates of tasks that were completed during a single sprint.

  • Calculated and used to manage future sprints.

  • Important to predict how much work can be done in a sprint.

  • A team’s velocity typically improves over time.

Sprint Activities

  • Sprint Planning: Selecting and refining PBIs for the sprint.

  • Sprint Execution: Completing the sprint backlog tasks.

  • Sprint Review: Reviewing completed work and discussing progress/problems.

  • Sprint Retrospective: Reflecting on what happened in the sprint.

Agile Activities

  • Test Automation and Continuous Integration are common agile techniques.

External Interactions

  • Interaction with people outside the team should be focused.

  • Only the ScrumMaster and Product Owner should take lead on external matters.

Project Management

  • Need to report progress to stakeholders.

  • Responsibilities are often assigned to the ScrumMaster.

Code Completeness Checklist

  • Helps determine whether a goal for a sprint has been met.

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