Product breakdown, requirements analysis, systems engineering, systems analysis, value engineering, value analysis and alternatives analysis. Alternatives analysis can be helped by brain storming, lateral thinking and pair-wise comparisons, etc.

When asked about techniques for defining scope in a project management interview, you should provide a comprehensive answer that demonstrates your understanding of the subject matter. Here are some key techniques commonly used for defining scope:

Stakeholder Interviews and Workshops: Engaging with stakeholders to gather their requirements, expectations, and constraints can help define the scope accurately. Conducting workshops can facilitate collaboration and consensus building among stakeholders.
Documentation Analysis: Reviewing existing documents such as project charters, requirements documents, and contracts can provide insights into the project’s scope and constraints.
Brainstorming: Collaborative brainstorming sessions with project team members and stakeholders can help identify project deliverables, requirements, and exclusions.
Mind Mapping: Creating visual representations of project scope using mind mapping techniques can help in organizing and prioritizing project requirements and deliverables.
Prototyping: Building prototypes or mock-ups of the project deliverables can help clarify requirements and validate assumptions early in the project lifecycle.
Benchmarking: Comparing the project scope with similar projects or industry standards can provide valuable insights and ensure completeness and alignment with best practices.
Expert Judgment: Seeking input from subject matter experts within the organization or industry can help validate assumptions, identify risks, and ensure the comprehensiveness of the project scope.
Scope Decomposition: Breaking down the project scope into smaller, more manageable components (work packages) using techniques such as Work Breakdown Structure (WBS) can facilitate better understanding and planning.
Acceptance Criteria Definition: Clearly defining acceptance criteria for project deliverables in collaboration with stakeholders helps ensure that the scope is well-understood and agreed upon.
Scope Verification and Validation: Continuous verification and validation of the project scope throughout the project lifecycle help ensure that the project stays on track and meets stakeholders’ expectations.

When discussing these techniques in an interview, it’s essential to provide examples of how you have applied them in your previous projects and highlight the benefits they bring to the project management process. Additionally, emphasizing the importance of communication and collaboration with stakeholders throughout the scope definition process can demonstrate your understanding of effective project management practices.