Evaluate a vendor or purchase decision financially for IT & Software

Your prompt is ready 3 brackets to fill

You are a procurement finance analyst, working with engineering leads, developers and IT buyers at a software company that ships a SaaS product.

## Goal
Compare options for a purchase on total cost, not just price.

## What matters in IT & Software
- Numbers that matter: deployment frequency; lead time for changes; change failure rate; mean time to recovery; uptime against SLA; MRR/ARR; net revenue retention; logo churn.
- Rules and standards that usually apply: data-protection law (GDPR in the EU, the DPDP Act 2023 in India, CCPA in California); SOC 2 or ISO 27001 security audits; OWASP secure-coding practice; open-source licence terms; the uptime and support promises in customer SLAs.
- Common risks to plan for: outages; data breaches and security holes; vendor lock-in; scope creep; knowledge held by one person; churn after a bad release.
- Timing and seasons: quarterly planning; release trains; annual renewal dates; end-of-quarter and fiscal-year-end deals.
- Rules differ by country. If I have not said where I work, ask me, and do not present one country's law as if it applied everywhere.

## What I will give you
- Options: [VENDORS AND PRICES]
- Usage and timeframe: [DETAILS]
- Other costs: [SETUP, TRAINING, MAINTENANCE]

## What to do
1. Calculate total cost of ownership for each option.
2. Compare buy, lease or subscribe if relevant.
3. Score non-financial factors.
4. Recommend the best option.

## What to deliver
- TCO table
- Option comparison
- Recommendation

## Rules
- Keep uptime, security and data-protection requirements in mind throughout, and point out anything in my plan that would break them.
- Where it fits, connect your recommendations to deployment frequency and uptime.
- Use plain language and short sentences. Use headings and tables where they make the answer easier to scan.
- Do not invent figures, laws, sources or quotes. Mark anything you had to assume with "Assumption:".
- If something important is missing, ask me up to 3 short questions before you start.

## Before you answer
Check your draft against this list and fix anything that fails:
- Calculations are shown step by step so I can check them, and nothing reads as personal investment or tax advice.
- It is written for a software company that ships a SaaS product; nothing in it would read the same for any other business.
- Every item under "What to deliver" is included.

Open in ChatGPT Claude Perplexity

How to use this prompt

Copy the prompt. Press Copy prompt and the full text goes to your clipboard.
Fill the brackets. Use the form above, or replace [VENDORS AND PRICES], [DETAILS], [SETUP, TRAINING, MAINTENANCE] with your own details.
Paste and send. Paste it into ChatGPT, Claude, Gemini and Microsoft Copilot and send. Ask follow-up questions to refine the answer.

Why this prompt works

The “Evaluate a vendor or purchase decision financially” prompt tells the assistant exactly what to hand back: TCO table; option comparison; and recommendation. It makes the assistant work through 4 steps in order, starting with "calculate total cost of ownership for each option", instead of jumping straight to an answer. Before replying, the assistant checks its draft against 3 tests and fixes anything that fails.

This version is written for a software company that ships a SaaS product, so the assistant keeps uptime, security and data-protection requirements in mind and judges the result by deployment frequency and uptime. If an important detail is missing, it asks you up to 3 short questions before it starts.

How to get the best answer

Fill every bracket with real detail: [VENDORS AND PRICES], [DETAILS], [SETUP, TRAINING, MAINTENANCE] should hold real names, numbers and dates, not placeholders.
Paste real material: where the prompt asks for notes, data or text, paste the actual content rather than a summary.
Refine in the same chat: ask "make it shorter", "turn it into a table" or "add more detail on step 2".
Check the result: review it against what you know about deployment frequency and uptime before you share it.

Other industries

Same prompt for other industries

The same evaluate a vendor or purchase decision financially prompt, rewritten for each industry.

FAQ

Frequently asked questions

Which AI assistant works best with the “Evaluate a vendor or purchase decision financially” prompt?

The “Evaluate a vendor or purchase decision financially” prompt works in any chat assistant and suits ChatGPT, Claude, Gemini and Microsoft Copilot best. Paste it in, send it, and ask follow-up questions in the same chat to refine the answer.

What do I fill in before sending the “Evaluate a vendor or purchase decision financially” prompt?

Replace the 3 highlighted brackets – [VENDORS AND PRICES], [DETAILS], [SETUP, TRAINING, MAINTENANCE] – with your own details. The more specific you are, the better the answer.

Is the “Evaluate a vendor or purchase decision financially” prompt only for IT & Software?

No. This version is written for a software company that ships a SaaS product, and the same prompt is also written for 15 other industries, listed on this page.

Is the “Evaluate a vendor or purchase decision financially” prompt free to use?

Yes. First AI Prompt prompts are free to copy and use in personal and business work, with no sign-up, no account and no daily limit.

Can I trust the answer the “Evaluate a vendor or purchase decision financially” prompt gives?

Treat it as a strong first draft: the prompt tells the assistant not to invent facts and to mark its assumptions, but check figures yourself, especially anything with legal, financial or safety consequences.

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