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Pareto Analysis

5 minutes 5 Questions

Pareto Analysis is a statistical principle that states that for many outcomes, roughly 80% of the consequences come from 20% of the causes ('the vital few'). In problem-solving, project teams use Pareto Analysis to prioritize the 'vital few' problems that should be solved first to deliver the most …

Guide to Pareto Analysis for PMI-ACP Exam

Pareto Analysis is a technique used for decision making based on the '80/20 Rule' or the 'Pareto Principle'. This rule implies that 80% of the issues are often due to 20% of the causes.

It's important because it helps in problem detection, resolution and focuses on the most significant factors in a data set. A key advantage of a Pareto Analysis is that it saves resources and labor by focusing on the 'vital few' over the 'trivial many'.

To perform a Pareto Analysis, you must first list the problems, then identify their root cause, count how often each problem occurs, and finally represent these problems graphically. The problems are then addressed according to their effect on the project.

Exam Tips: Answering Questions on Pareto Analysis
1. Understand the basic concept of Pareto Analysis.
2. Be familiar with how to read a Pareto chart and identify major causes of problems.
3. Remember that in a Pareto chart, the left side represents the most frequent cause of defects.
4. Keep in mind that Pareto Analysis embodies the 80/20 rule. Always look for the 'vital few' causes that are the root of the majority of the defects.
5. In the exam, if a question pertains to finding critical problems or occurrence frequency, think Pareto.
6. Practice! The more you practice, the better you'll understand this concept and the easier it will be to apply it in different scenarios on the exam.

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PMI-ACP - Pareto Analysis Example Questions

Test your knowledge of Pareto Analysis

Question 1

Your team is working on a software project. You have discovered a large number of bugs and issues that need to be addressed. Which of the following actions should you take, given the Pareto Principle?

Address the problems in order of when they were discovered. Identify the 20% of the bugs causing 80% of the problems and address those first. Address the least severe bugs first to reduce the total number of bugs quickly. Assign each team member as many bugs as possible to solve simultaneously.

Correct Answer: Identify the 20% of the bugs causing 80% of the problems and address those first.

The best approach when dealing with multiple bugs and issues in a software project, given the Pareto Principle, is to 'Identify the 20% of the bugs causing 80% of the problems and address those first.' This principle also known as the 80/20 rule suggests that, for many events, roughly 80% of the effects come from 20% of the causes. By focusing on the few critical problems that are causing the majority of the issues, the team can effectively use their time and resources to yield high-impact results. The other answers are less efficient strategies. 'Addressing problems in order of when they were discovered' doesn't factor in their impact, while 'assigning each team member as many bugs as possible to solve simultaneously' could overwhelm the team and not necessarily solve the most critical issues. Lastly, 'Addressing the least severe bugs first to reduce the total number of bugs quickly'disregards the severity or impact of the bugs, and solving these might not significantly improve software stability or function.

Question 2

Your team has reported multiple productivity issues. Opting for Pareto Analysis, how should you proceed to rectify this situation effectively?

Fix the productivity issues that are the least complicated first. Investigate and address the core 20% of problems causing 80% of the productivity issues. Start with the most recent productivity issues that have emerged. Consider the productivity issues as equal and work on them in no specific order.

Correct Answer: Investigate and address the core 20% of problems causing 80% of the productivity issues.

Pareto Analysis is based on the Pareto Principle, also known as the 80/20 rule. According to this principle, roughly 80% of effects come from 20% of causes. Therefore, the best way to proceed would be to investigate and address the core 20% of problems causing 80% of the productivity issues as the first answer suggests. Fixing the least complicated issues first (as in the second answer) doesn't always lead to the most significant improvement in productivity, while considering all issues as equal (third answer) ignores the tenet of the Pareto Principle. Finally, working on the most recent issues (the fourth response) might not address the more substantial, ongoing problems affecting productivity.

Question 3

You are leading a product development team. Your team has identified 100 potential features (bugs, improvements, new features, etc) to be developed. How should you apply the Pareto Principle to decide which ones to focus on first?

Work on the 80 features that are easiest to implement first Identify and work on the 20 features that will resolve 80% of the user complaints. Pick 20 random features and work on them. Focus on the features that are the most fun to work on.

Correct Answer: Identify and work on the 20 features that will resolve 80% of the user complaints.

The Pareto Principle, also known as the 80/20 rule, states that roughly 80% of the effects come from 20% of the causes. Applied to product development, this means human resources should be focused on the 20% of features (from the identified 100 potential features) that will resolve around 80% of user complaints or improve user experience. This approach allows the maximization of effort towards impacting the majority of user issues The other responses don't correctly apply the Pareto Principle. Randomly picking 20 features doesn't guarantee they will solve the majority of issues. Focusing on what's fun to work on may not address user complaints at all. Focusing on the easiest to implement isn't necessarily tied to solving prominent user issues either.

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