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Business Case Development and Financial Analysis Questions

Skills and practices for building persuasive business cases and performing financial analysis to justify investments and prioritization. Topics include enumerating and estimating cost categories such as implementation, licensing, development, infrastructure, deployment and ongoing support; quantifying tangible benefits such as cost savings, revenue uplift, productivity improvements and efficiency gains; and accounting for intangible benefits such as risk reduction, flexibility and employee satisfaction. Financial techniques include total cost of ownership, simple return on investment, payback period, net present value using discounted cash flows, internal rate of return, lifecycle cost analysis and build versus buy comparisons. Candidates should be able to construct cash flow timelines, separate capital and operating expenses, perform sensitivity and scenario analysis, estimate ranges and confidence, model procurement and vendor tradeoffs, and state assumptions clearly. Practical communication skills include tailoring the financial narrative and level of detail for finance leaders, procurement partners, technical stakeholders and executive sponsors, showing break even and sensitivity charts, defining success metrics and timelines, and describing how to track and report realized outcomes after implementation.

EasyTechnical
71 practiced
Describe Total Cost of Ownership (TCO) for an ML product over five years. What categories would you enumerate and estimate (implementation, licensing, development, infrastructure, deployment, support), and what sources or methods would you use to estimate each category when initial information is scarce?
MediumSystem Design
56 practiced
Design a reproducible financial model (code + data) for TCO that a cross-functional team can audit and update. Which technologies, file formats, versioning practices, and documentation would you use to ensure transparency and repeatability?
MediumTechnical
97 practiced
You must show realized outcomes 12 months after launch where actuals diverged from forecasts. Describe an incident report structure for the post-mortem that quantifies deviations, identifies root causes (model drift, adoption, external factors), and recommends corrective actions and measurement to validate fix effectiveness.
MediumTechnical
80 practiced
You have usage data and want to calculate the Customer Lifetime Value (LTV) per cohort to include in a revenue uplift business case. Given a table 'events(user_id, event_date, revenue)' describe in SQL how you'd produce 12-month cumulative revenue per cohort (cohort by signup month). Provide the expected output columns.
MediumTechnical
59 practiced
Describe how you would design an A/B test and measurement plan to credibly attribute revenue uplift to a new predictive model. Include sample size considerations, metric definitions, pre-registration, and how resulting estimates would feed into the financial business case.

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