Team peer review is a technique that is used to identify ambiguous or unverifiable requirements. Team peer review is a technique that involves having a group of peers or experts examine and evaluate the requirements for quality, completeness, correctness, clarity, consistency, and testability. Team peer review can help to identify any ambiguous or unverifiable requirements that may cause confusion, misunderstanding, or errors in the project. Team peer review can also provide feedback and suggestions for improvement or resolution of any issues or defects in the requirements. Fishbone analysis is not a technique that is used to identify ambiguous or unverifiable requirements. Fishbone analysis is a technique that is used to identify the root causes of a problem or an effect by analyzing its contributing factors and their relationships. Fishbone analysis can help to understand why a problem exists or why an effect occurs, but it does not directly examine or evaluate the quality of the requirements. Resource checklist is not a technique that is used to identify ambiguous or unverifiable requirements. Resource checklist is a tool that is used to identify and document the resources needed to perform business analysis activities, such as people, tools, facilities, equipment, etc. Resource checklist can help to plan and manage the resources required for business analysis work, but it does not assess or verify the quality of the requirements. Traceability matrix is not a technique that is used to identify ambiguous or unverifiable requirements. Traceability matrix is a tool that is used to track and document the relationships and dependencies among requirements and other project elements, such as design, test cases, risks, issues, etc.Traceability matrix can help to monitor and control changes to requirements and ensure alignment with project objectives and stakeholder needs, but it does not measure or validate the quality of the requirements.Reference: Business Analysis for Practitioners: A Practice Guide1, page 162-163; PMI Professional in Business Analysis (PMI-PBA) Examination Content Outline2, page 19-20.

Persona analysis is a technique that involves creating fictional characters that represent different user groups within the company. Persona analysis can help the business analyst to evaluate the solution's acceptance criteria by providing a detailed narrative of each user group's needs, goals, preferences, and behaviors. Persona analysis can also help to prioritize the requirements and design features that best suit each user group.Reference: = PMI Professional in Business Analysis (PMI-PBA) Examination Content Outline (2019), page 11; Business Analysis for Practitioners: A Practice Guide (2015), page 67.

A requirements traceability matrix is a tool that shows the relationship between each requirement and other project elements, such as objectives, deliverables, test cases, design components, etc. A requirements traceability matrix can help the business analyst to determine the impact for the specific requirement change by showing how the change affects other related requirements and project elements. A requirements traceability matrix can also help to assess the feasibility, scope, value, and risk of the change request.Reference: = PMI Professional in Business Analysis (PMI-PBA) Examination Content Outline (2019), page 10; Business Analysis for Practitioners: A Practice Guide (2015), page 40.

Observation is a technique that involves watching how people perform their tasks and activities in their natural work environment. Observation can be used to gain an objective, first-hand insight into tasks and activities that are difficult to describe, as it allows the business analyst to see the actual behavior, interactions, processes, and problems of the users or customers. Observation can also help to identify the implicit, hidden, or unspoken needs and expectations of the users or customers, as well as to validate the information obtained from other elicitation techniques. Observation can be done in two ways: passive or active. Passive observation means that the business analyst does not interfere or participate in the tasks and activities, but only records and analyzes what is observed.Active observation means that the business analyst interacts with the users or customers, asks questions, and provides feedback during the observation.Reference: PMI Professional in Business Analysis (PMI-PBA) Examination Content Outline1, page 17; Business Analysis for Practitioners: A Practice Guide2, page 89.

A change control process is a set of procedures that defines how changes to the requirements are identified, assessed, approved, implemented, and communicated. A change control process helps to ensure that changes are aligned with the business objectives, do not introduce unnecessary risks, and do not adversely affect the quality of the solution.A change control process also helps to manage stakeholder expectations and avoid scope creep.Reference: PMI Professional in Business Analysis (PMI-PBA) Examination Content Outline1, page 13; Business Analysis for Practitioners: A Practice Guide2, page 77.