Exam CBAP topic 1 question 152 discussion

A parametric estimate involves using historical data or measurable factors to calculate project metrics, such as cost or time. In this scenario, the rate of 25 workstations per hour is a parametric estimate because it uses a known productivity rate to estimate how long it will take to complete the task. This allows the business analyst to make decisions about adding labor or adjusting priorities based on the installation rate. Why the Other Options Are Incorrect: • A. Timeboxing: This refers to setting a fixed amount of time to complete a specific task or deliverable, regardless of scope. In this case, the fixed rate of workstations per hour is not about limiting time but about estimating effort.

Timeboxing is correct because 25 workstations per hour represents prioritizing based on allocation of time resources. Parametric estimate is not correct as it is not a defined prioritizing approach as defined in BABOK v3 10.33.2. The BABOK defined approaches for prioritizing includes: 1) Grouping 2) Ranking 3) Time Boxing / Budgeting 4) Negotiation

Timeboxing involves allocating a fixed amount of time to complete a specific task or set of tasks. In this scenario, the requirement to install 25 workstations per hour sets a time constraint on the installation process. Therefore, the 25 workstations per hour represents the time constraint imposed on the project, making "Timeboxing" the appropriate answer. see v3 pg 313 .3

C. Parametric estimate In this scenario, the estimate of installing 25 new workstations per hour is an example of a parametric estimate. A parametric estimate involves using statistical relationships, historical data, or other quantitative methods to estimate project parameters based on specific variables. In this case, the parameter being estimated is the installation rate of new workstations, and the estimate is based on the rate of 25 workstations per hour. Adjusting the labor and prioritizing requirements based on this estimate is a strategic approach to manage the installation process efficiently.

the correct answer is time boxing, the question talked about a prioritization

Emphasis is on the fixed amount of time and the adjustment to the priority. That is why I will go with Timeboxing. Timeboxing or budgeting prioritizes business analysis information based on the allocation of a fixed resource.

correct answer is Time Boxing. BABOK v3: 10.33.3; Time Boxing/Budgeting

Timeboxing/Budgeting is an approach used when there is time or money constraint. Here 25 workstations is an attribute being estimated. It reflects the skills and abilities required to do the work. So according to me the answer is clearly 'Parametric Estimation'

I believe the correct answer is 'Parametric Estimate'