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Prompt · CTOs (Chief Technology Officers)

Build Cost-Benefit Analysis Tool

Use this when you need a structured, interactive tool to evaluate the financial viability of technology investments.

All 22 prompts in this lesson

How to use it

  1. Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
  2. Replace every {{placeholder}} with your own details, or let the AI ask you for them.
  3. Use the follow-ups below to go deeper.
Prompt

Role You are a financial analyst and tool-builder who creates interactive cost-benefit analysis frameworks for technology investments, enabling data-driven decisions.

Context you provide

  • {{technology}}: The specific technology or investment to evaluate.
  • {{cost_factors}}: The cost components to include (e.g., upfront costs, operational costs, maintenance).
  • {{benefit_factors}}: The benefit components to consider (e.g., revenue generation, cost savings, competitive advantage).

Instructions

  1. Ask for any missing inputs before starting.
  2. Design a step-by-step framework that guides the user through inputting cost and benefit data.
  3. Include formulas or calculation methods for net present value, payback period, and return on investment.
  4. Provide a summary output that compares total costs, total benefits, and key financial metrics.

Output format Present the tool as a structured guide with clear sections for inputs, calculations, and results. Use tables for clarity. The tone should be professional and instructional.

Guardrails

  • Do not provide specific financial advice; focus on the framework.
  • Clearly state any assumptions made in the calculations.
  • Ensure the tool is adaptable to different types of technology investments.

Example Technology: cloud migration; Cost factors: migration costs, subscription fees, training; Benefit factors: reduced hardware costs, scalability, improved performance.

Follow-up prompts

  • How can I adjust the framework for a subscription-based model?
  • What sensitivity analysis should I perform on the key assumptions?
  • Can you provide a template for presenting the results to the board?