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Requirements Elicitation and Scoping Questions

This topic covers the end to end practice of clarifying ambiguous problem statements, eliciting and defining functional and non functional requirements, and scoping solutions before design and implementation. Candidates should demonstrate the ability to identify target users and user journeys, conduct stakeholder interviews, ask targeted and probing clarifying questions, surface hidden assumptions and root causes, and convert vague business language into measurable technical and business requirements. They should capture acceptance criteria and success metrics, define key performance indicators, and translate requirements into testable statements and test strategies that map unit, integration, and system tests to requirement risk and priority. The topic includes assessing technical constraints and operational context such as expected scale, throughput and latency requirements, data volume and read write ratios, consistency expectations, real time versus batch processing trade offs, geographic distribution, uptime and availability expectations, security and compliance obligations, and existing system state or migration considerations. It also requires evaluation of non technical constraints including timelines, team capacity, budget, regulatory and operational concerns, and stakeholder priorities. Candidates are expected to synthesize inputs into clear artifacts such as product requirement documents, user stories, prioritized backlogs, acceptance criteria, and concise requirement checklists to guide architecture, estimation, and implementation. Emphasis is placed on scoping and prioritization techniques, distinguishing must have from nice to have features, conducting trade off analysis, proposing incremental or phased approaches, identifying risks and mitigations, and aligning cross functional teams on scope and success measures. Expectations vary by seniority: entry level candidates should reliably ask core clarifying questions and avoid solving the wrong problem, while senior and staff candidates should rapidly prioritize requirements, anticipate critical non functional needs, align solutions to business impact, and communicate trade offs and timelines to stakeholders.

MediumTechnical
0 practiced
Your system must guarantee 99.95% availability and p95 latency <100ms for a public API receiving 1M calls/day. List the non-functional requirements you would capture (redundancy, scaling, backups, throttling), the clarifying questions you would ask the product owner, and the minimal SLI/SLO definitions you would propose.
HardSystem Design
0 practiced
Create a high-level migration plan with zero-downtime cutover and rollback strategies to move from a self-hosted PostgreSQL to a cloud-managed Postgres. Include logical replication, data validation, schema change handling, and steps for final cutover and rollback.
HardTechnical
0 practiced
You must decide between strong consistency and eventual consistency for a financial ledger replicated across three regions. Provide a decision framework that weighs user expectations, reconciliation complexity, latency, and failure modes. Make a recommendation and list mitigations for your chosen approach.
EasyTechnical
0 practiced
A stakeholder writes: 'Make search faster.' As the engineer responsible for scoping, explain how you would translate this into measurable non-functional requirements and acceptance criteria. Include example target numbers (e.g., p95 latency, throughput), testing approaches, and a brief plan to verify the improvement.
MediumTechnical
0 practiced
A product KPI is 'reduce checkout abandonment by 10%'. Describe how you would convert this into engineering requirements, instrumentation needs, experiments to run, and acceptance criteria for a successful rollout of a checkout optimization feature.

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