Lean Software Development Coursera Quiz Answers

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Lean Software Development Week 01 Quiz Answers

Quiz 1: Lean Fundamentals

Q1. Which of the following are 5 Lean principles? (Not the 7 principles of Lean software development)

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Identify Value

Map the Value Stream

Establish Pull

Seek Perfection

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Q2. In terms of “Lean”, what is the best description of Waste?

[expand title=View Answer]Waste is the usage of any resource during the process, which are not recognized by the customer as adding value to the product or service they receive. [/expand]

Q3. Lean techniques define “Value” from the perspective of who?

[expand title=View Answer] The Customer [/expand]

Quiz 2: Lean Principles

Q1. In Lean software development, how can amplifying learning occur? (Select all that apply)

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1.The developers choose technologies that force them to learn new skills.
2.The developers use short iterations.
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Q2. How can waste arise in software development? (Select all that apply)

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There are product defects found late in the development.

Developers work on rarely used product features.
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Q3. In Lean software development, what does the principle of “defer commitment” mean?

[expand title=View Answer]Decisions are made after having enough information from considering the alternatives. [/expand]

Q4. In Lean software development, what does the principle of “deliver fast” mean? (select 2 that apply)

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1.A simpler version of software product (an MVP – Minimum Viable Product) is developed first to reach the market rapidly.
2.Iterations are short, so feedback is frequent, and product evolution is rapid.
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Q5. Which of the following align with the lean principle of “build quality in”? (select 2 that apply)

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1.The developers apply practices to avoid or quickly catch errors while making the software product.
2.Instead of focusing on refactoring every sprint, certain sprints are dedicated to focus on quality.
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Q6. In Lean software development, what does “optimize the whole” mean? (Select all the apply)

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The ability of a system to achieve its purpose depends on how well the parts work together, not just how well they perform individually.

Rather than trying to optimize one part, look at the whole system for optimization opportunities.
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Q7. Which of the following tools can help you find waste in a process?

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1.Value Stream Mapping
2.5 Whys
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Q8. What are some of the tools to amplify learning? (Select all that apply)

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1.Set Based Development
2.Iteration
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Q9. How do you deliver fast (i.e reduce cycle time) without compromising the quality?

[expand title=View Answer] Minimize the number of items in process. [/expand]

Q10. “The Last Responsible Moment” is a tool for which Lean Software Principle?

[expand title=View Answer]Defer Commitment [/expand]

Q11. Lean helps increase productivity by:

[expand title=View Answer] Reducing the amount of useless activity that our resources (the team members) are currently burdened with. [/expand]

Q12. Which practices waste time during software development? (Choose two)

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Weekly meetings that are held whether or not they are needed.

Delays in receiving work products.
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Lean Software Development Week 02 Quiz Answers

Quiz 1: Kanban

Q1. Which of these are core properties of Kanban? (Select all that apply)

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Manage Flow

Limit work in progress

Visualize the Work
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Q2. Which of following is valid on a Kanban Board? Select two.

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1.The WIP limit for Step X is 3. Step X is divided into “Doing” and “Done”. The number of items in the “Doing” column is 2, and the number of items in the “Done” column is 1.
2.The WIP limit for Step X is 5. Step X is divided into “Doing” and “Done”. The number of items in the “Doing” column is 3, and the number of items in the “Done” column is 1. One of the items in the previous step is done and the developers want to move that item to Step X.
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Q3. A software development team just started using Kanban. They had the following columns on their Kanban board, in order from left to right: Backlog, Analysis, Development, Testing, Deployment. Each column has a WIP limit of 3.

There are currently 3 items in testing (3 items being tested). Similarly, there are 3 items in the development column (2 items that are in development and 1 item is done with its development).

One of the developers does not have anything to work on, so the manager wants to add one more item to the development column so the developer looking for work can work on it.

Which of the following are valid next actions in this situation? Select all that apply.

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The team should get together and discuss if they should add another tester to the test team so this bottleneck can be resolved quickly.

The manager should ask the deployment team if a done item in the testing column can be deployed so there is space to move an item from development to testing.

The manager should ask the developer waiting for work to help the testers so that they can finish one of the items in their column and move it to the deployment column.
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Quiz 2: Kanban, Value Stream Mapping and Kaizen

Q1. The 5 “Whys” to be considered during a Root Cause Analysis are…?

[expand title=View Answer] Why, Why, Why, Why and Why [/expand]

Q2. What is the purpose of the Lean tool ‘Kaizen’?

[expand title=View Answer] An improvement activity to create more value and remove waste. [/expand]

Q3. Which of the following can be used to do 5 Whys analysis?

[expand title=View Answer] A fishbone diagram[/expand]

Q4. In Kanban, a developer pulls the next item to work on from the:

[expand title=View Answer] in the previous column on the board[/expand]

Q5. You are a developer on a team using a Kanban board to manage flow. You work on Step X within the process and it just so happens that you are looking for more work.

The Kanban board is set up as follows:

Step X has a WIP limit of 3.

Step X is divided into “Doing” and “Done.”

The number of items in the “Doing” column is 2.

The number of items in the “Done” column is 1.

Without violating the rules of the Kanban board, what should you do? Select all that apply.

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Help the group (that picks work from the following column) finish their work so they can pull an item from the “Done” column of Step X. That will allow you to pick an item from the previous step.

Talk to the team about adjusting the WIP limit because increasing the WIP limit will create a better flow of work.
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Q6. Which of the following statements are true about Value Stream Mapping? Select all that apply.

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1.It is recommended that you go to the place where work is happening because that will distract the people working and will skew your value stream map.
2.Value-added activities are activities that add value from the customer’s perspective.
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Q7. What is the formula to calculate the Process Cycle Efficiency?

[expand title=View Answer] (Value Added Time – Non Value Added Time) / Total Cycle Time[/expand]

Lean Software Development Week 03 Quiz Answers

Quiz 1: Lean Startup

Q1. What is the main goal of the Build-Measure-Learn Cycle?

[expand title=View Answer] To go through the build-measure-learn cycle as fast as possible. [/expand]

Q2. What do we mean by Validated Learning?

[expand title=View Answer] Validating the assumptions by conducting an experiment and collecting data. [/expand]

Q3. Which of the following are principles of Lean startup? Select all that apply.

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Innovation Accounting

Entrepreneurs are everywhere

Validated Learning
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Q4. Which of the following is true about Lean Startup? Select two.

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1.It relies on actual data rather than gut feelings to validate assumptions or ideas.
2.It is based on going through the Build-Measure-Learn cycle as fast as you can.
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Q5. Why are traditional management principles ill-suited to the world of startups?

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1.Because building a startup is not the same as institution building.
2.Because startups face chaos and uncertainty.
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Q6. When a startup ‘pivots’, what is it doing?

[expand title=View Answer] Employing a revised strategy in an attempt to achieve its vision. [/expand]

Q7. According to Ries, which of the following adjectives describes good startup metrics? Select all that apply.

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Accessible
Actionable

Auditable
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Q8. Which of the following are levels of Pirate Metrics? Select all that apply.

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Referral

Activation

Retention

Revenue

Acquisition
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Q9. Which of the following are true about Pivot or Persevere? Select two.

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Customer segment pivot: The product hypothesis is partially confirmed; it solves the right problem but for a different customer than originally anticipated.

Zoom-out pivot: What was previously considered a single feature in a product becomes the whole product.
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Q10. How do Vanity metrics prevent/inhibit pivoting?

[expand title=View Answer] Vanity metrics allow entrepreneurs to draw incorrect conclusions. Based on these metrics, they assume that the product is going in the right direction when it really isn’t. [/expand]

Q11. What are three ways that a past customer can drive sustainable growth?

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Repeat purchase
Word-of-mouth referral
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Q12. What are the characteristics of “Early Adopters”?

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Early adopters are actively seeking a solution to the problem your product solves.
Early adopters will give you their time and honest feedback.
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Q13. What are leap-of-faith assumptions?

[expand title=View Answer] Assumptions that are the riskiest elements of a startup plan. [/expand]

Q14. Which of these attributes are favored by Lean startup? Select two.

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Experimentation and Iteration
Customer feedback
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Q15. Who is an “Intrapreneur” ?

[expand title=View Answer] A manager who promotes innovations within the company. [/expand]

Lean Software Development Week 04 Quiz Answers

Quiz 1: Design Thinking

Q1. Which of the following are true about Design Thinking? Select 2.

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It recommends that a cross-functional team work together in the design thinking process.

It is a process for creative problem-solving.
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Q2. In design thinking, what are two of the main reasons to empathize with users?

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To prevent team member bias from impacting their understanding of the problem and influencing the solution.
To discover the real problem to be solved.
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Q3. Design thinking results in innovation by integrating which three things?

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Business Viability

Human Desirability

Technical Feasibility
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Q4. What are the two dimensions for categorizing assumptions?

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Probability that it will be right

Impact on our solution if it is wrong
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Q5. What are the two dimensions for categorizing tests?

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Cost/Effort of conducting a test

Quality of data collected from the test
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