Certified Six Sigma Black Belt Project Identification and Selection Questions and Answers — Questions and Answers
Question 1: A leadership team is faced with 15 potential Six Sigma projects. They need a structured method to evaluate these projects against multiple, weighted business criteria such as financial impact, customer satisfaction, and strategic alignment. Which tool is most appropriate for this task?
- Fishbone Diagram
- Project Selection Matrix (Correct answer)
- Gantt Chart
- Pareto Chart
Correct answer: Project Selection Matrix
A Project Selection Matrix (also known as a Pugh Matrix or decision matrix) is specifically designed to evaluate multiple options against a set of weighted criteria. This allows for a systematic and objective prioritization of projects based on their alignment with key business objectives like financial impact and strategic fit. [5]
Question 2: Which of the following elements is the MOST critical component of a project charter for securing management buy-in and resources?
- A detailed list of all team members and their roles
- A preliminary schedule with specific milestone dates
- The communication plan for all stakeholders
- The Business Case, including financial justification (Correct answer)
Correct answer: The Business Case, including financial justification
The Business Case is the core justification for a project's existence. [28] It explains the 'why' by linking the project to strategic business goals and outlining the expected financial benefits (e.g., cost savings, ROI), which is essential for convincing leadership to commit funding and resources. [21, 23]
Question 3: A hotel chain gathers customer feedback and finds a common complaint is "the check-in process takes too long." To translate this vague statement into a measurable project goal, which of the following is the BEST example of a Critical to Quality (CTQ) characteristic?
- Improve the friendliness of the front desk staff.
- Total time from guest arrival to receiving room key is less than 3 minutes. (Correct answer)
- Redesign the lobby layout for better customer flow.
- Reduce the overall operational cost of the front desk.
Correct answer: Total time from guest arrival to receiving room key is less than 3 minutes.
A Critical to Quality (CTQ) characteristic translates a general customer need (Voice of the Customer) into a specific, measurable, and actionable requirement. [8, 10] "Less than 3 minutes" is a precise, quantifiable target that directly addresses the customer's complaint about time and can be used to measure process performance and improvement. [22]
Question 4: When evaluating the financial viability of a large-scale Six Sigma project with significant upfront investment and multi-year returns, which financial metric is superior to a simple Return on Investment (ROI) because it accounts for the time value of money?
- Cost of Poor Quality (COPQ)
- Rolled Throughput Yield (RTY)
- Net Present Value (NPV) (Correct answer)
- Payback Period
Correct answer: Net Present Value (NPV)
Net Present Value (NPV) discounts all future cash flows (both inflows and outflows) to their present-day value, explicitly incorporating the principle that money today is worth more than money in the future. [2, 29] This makes it a more accurate and sophisticated measure for long-term capital projects compared to ROI or Payback Period, which do not discount future earnings. [11]
Question 5: A Black Belt is leading a project to automate a reporting process, which will significantly change the daily tasks of the accounting department. The accounting manager is highly influential but is expressing strong resistance to the change. According to a standard Power/Interest grid for stakeholder analysis, what is the BEST engagement strategy for this manager?
- Keep Satisfied
- Monitor
- Keep Informed
- Manage Closely (Correct answer)
Correct answer: Manage Closely
Stakeholders with high power (influence) and high interest in a project, like the accounting manager whose department is directly impacted, fall into the 'Manage Closely' quadrant of the Power/Interest grid. [3, 20] This requires the most intensive engagement strategy, involving frequent communication and active efforts to understand and address their concerns to gain their support. [6]
Question 6: During the initial project identification and scoping phase, a team creates a high-level process map that includes Suppliers, Inputs, Process, Outputs, and Customers. What is the primary benefit of creating this SIPOC diagram at the beginning of a project?
- To perform a detailed statistical analysis of process performance.
- To establish clear project boundaries and define the scope. (Correct answer)
- To identify all potential root causes of a problem.
- To create a detailed training plan for process operators.
Correct answer: To establish clear project boundaries and define the scope.
A SIPOC diagram is a high-level tool used in the Define phase of DMAIC primarily to establish a clear project scope. [1, 4] By identifying the start and end points of the process and its key elements, it helps the team and stakeholders agree on the project's boundaries, preventing scope creep later on. [7, 15]
