The standard approach to software vendor evaluation goes like this: receive proposals from three vendors, attend demos, evaluate features, negotiate on price, pick the one that seemed best in the presentation. Sign the contract. Discover six months later that the things that actually matter — implementation quality, support responsiveness, product roadmap alignment — were not assessed at all.
Vendor evaluations that focus on the demo are evaluations of the vendor's sales capability, not their product or their ability to deliver a successful implementation. A useful evaluation requires a different set of questions.
What You Are Actually Evaluating
When selecting a software vendor, you are making three different decisions simultaneously, and most evaluations only address one.
The product decision: Does this product, as it exists today, solve the problem you have defined?
The relationship decision: Is this vendor the kind of organisation that will be a good partner over the next three to five years?
The implementation decision: Does this vendor have the capability — or do you have the capability, if self-implementing — to get from contract to productive use in a way that produces the outcome the business needs?
The demo addresses the first decision incompletely (you are seeing a curated showcase of what the product does well, not an honest assessment of its limitations). It barely addresses the second, and does not address the third at all.
Questions That Surface What Demos Do Not
About the product:
Ask the vendor to demonstrate the specific workflow that is most critical to your use case — not the standard demo flow, your workflow. If the demo cannot be customised to show your scenario, that tells you something important about how the product handles edge cases.
Ask them to walk you through the limitations of the product. What does it not do well? What workarounds do customers commonly build? A vendor who answers this honestly is more trustworthy than one who insists the product does everything.
Ask for a list of customers who left the platform in the last twelve months and why. You will not always get this information, but asking it signals that you take vendor performance seriously.

About the relationship:
Ask for the name and contact details of your account manager and support contacts before you sign. Vendor attention during the sales process does not predict vendor attention post-signature. Understanding who your actual point of contact will be — and assessing their competence and responsiveness — is important.
Ask how they handle product issues that affect your use case specifically. Get a concrete example of a customer problem and how it was resolved. The answer reveals whether customer success is genuinely a priority or a department that exists on paper.
Ask about their product roadmap and how it is influenced by customer feedback. If your most critical missing feature is "on the roadmap," find out what that means in practice — is there a timeline, a committed release, a customer advisory board process?
About the implementation:
Ask for a reference conversation with a customer who implemented the product in a context similar to yours. Not a written testimonial — a live conversation. Ask that customer: what went wrong? What would you do differently? How long did it actually take versus the vendor's estimate?
Ask for the implementation project plan before you sign. Review it for realism: does the timeline account for data migration, staff training, parallel running, and post-launch stabilisation? A timeline that goes straight from contract to go-live with no buffer is a vendor who does not understand implementation risk.
Data Migration: The Part Nobody Talks About
One of the most common sources of vendor relationship breakdown is data migration. Getting your existing data into a new system cleanly — with the right structure, quality checking, and validation — is often more complex and more expensive than the implementation itself.
Before signing, get a clear, written answer to: who is responsible for data migration, what is included in scope, what format does data need to be in, and what happens if the migration reveals data quality problems in your existing system?
Vendors who are vague on this topic have almost always underscoped it. The cost will surface during implementation.
Contract Terms That Matter
Most buyers focus contract negotiations on price and payment terms. There are several other terms that matter more to the long-term success of the relationship:
Data portability. What happens to your data if you leave? Can you export it in a standard format? Are there fees for data export? This should be negotiated before signing.
Contractual uptime and support SLAs. What uptime does the vendor commit to contractually (not just in marketing materials)? What is the response time commitment for support issues, and what remedies exist if they are breached?
Price escalation terms. What are the terms for renewal pricing? Uncapped price escalation clauses in multi-year contracts are a common source of unpleasant surprises at renewal.
The Reference Conversation
The single highest-return investment in a vendor evaluation is thirty minutes with a current customer who has been using the product for at least twelve months. Ask them: is the product doing what you expected it to do? What have been the biggest sources of friction? Has the vendor delivered on their commitments? Would you sign again knowing what you know now?
No vendor is going to give you references who will say negative things. But an honest reference conversation will reveal things that a positive reference would never think to mention — the workarounds they built, the feature gaps they adapted to, the support interaction that took three escalations to resolve.
The best information is in the details, not the headline verdict.
Technology vendor selection is part of the infrastructure assessment in our what we do. If you are evaluating options for a specific capability and want an independent assessment, book a consultation.
