Choose a software development partner by comparing evidence against the same delivery brief. Score the proposed team, acceptance process, ownership arrangements, security practices and operating costs before comparing the headline price. A supplier should explain how your organisation will accept, run and change the software after the first release.
This guide is for buyers in Europe comparing domestic suppliers with remote engineering partners. Geography affects meeting arrangements, contracting and access requirements; it does not establish engineering quality. TuniCyberLabs serves buyers remotely. The scorecard below is a proposed procurement tool, not a ranking of companies or a claim that one country produces better developers.
Give every supplier the same decision brief
Start with one important business workflow. Describe its users, current bottleneck, systems involved, transaction volume and consequence of failure. Include the evidence you have and mark unknowns explicitly. A supplier that prices an unknown integration as straightforward has made an assumption that you need to see.
For an illustrative distributor portal, the brief might explain how customers request quotes, who approves discounts, where stock information comes from and how orders enter the accounting system. Attach sample records with sensitive information removed. Describe what a successful trial must demonstrate.
Ask each supplier to return a proposed delivery boundary, assumptions, exclusions, responsibilities and acceptance evidence. These responses are more comparable than presentations built around different imagined projects.
Apply gates before calculating a score
Some requirements should determine eligibility. A high score for design cannot compensate for an ownership arrangement your business cannot accept. Set these gates with the people who will operate and approve the project:
- ▸The buyer can access the repository, delivery history and agreed documentation.
- ▸The proposal names who owns product decisions, engineering decisions and production approval.
- ▸Hosting, support access and third-party services can be reviewed before sensitive data is introduced.
- ▸Software rights, reusable components and licence obligations are described in the contract.
- ▸The team accepts measurable completion criteria and an agreed exit process.
Failing a gate should trigger clarification or rejection, not a quiet deduction of two points. Keep contractual and data-processing questions with the appropriate internal reviewers.
Use a weighted scorecard with evidence
The following 100-point allocation is a starting recommendation. Adjust it before opening proposals so the criteria reflect your project rather than a preferred supplier.
- ▸Problem understanding and scope: 20 points. Look for a correct workflow map, explicit unknowns and sensible first-release boundaries.
- ▸Engineering and integration approach: 20 points. Request a discussion of failure modes, test strategy and deployment design.
- ▸Delivery and acceptance: 15 points. Look for small reviewable increments, named approvers and a process for disputed results.
- ▸Security and data handling: 15 points. Ask for relevant controls and examples of verification evidence.
- ▸Ownership and handover: 15 points. Evaluate repository access, operational documentation and the receiving team's ability to deploy.
- ▸Commercial and operating clarity: 15 points. Compare assumptions, recurring services, support coverage and change pricing.
Rate each category from zero to five, multiply by its weight and divide by five. Zero means no usable evidence; three means a workable proposal with known gaps; five means strong evidence relevant to your circumstances. Record the justification beside every score. Have technical and business reviewers score independently before discussing differences.
Turn technical claims into observable checks
“We follow best practices” is too broad to score. Ask how code reaches production, who can bypass reviews and how the team handles a dependency vulnerability. Request a sanitised sample release checklist or walk through a hypothetical incident.
The NIST Secure Software Development Framework provides a shared vocabulary for discussing secure development with suppliers. The OWASP Application Security Verification Standard supplies requirements that can inform application security testing. Agree which requirements apply and how evidence will be delivered; mentioning a framework is not certification.
For integrations, ask the supplier to explain what happens after a timeout, duplicate event or partial failure. For an operational tool, ask who restores service when its original developer is unavailable. Specific answers reveal engineering judgement more effectively than a long technology list.
Compare the complete commercial boundary
Separate discovery, implementation, migration, external licences, cloud consumption, training and support. State which amounts are estimates and what evidence will narrow them. Record quotation currency, taxes handled by the buyer's finance process, payment milestones and the treatment of change requests.
An illustrative comparison might show Vendor A offering a lower implementation fee but excluding migration rehearsal and operational training. Vendor B includes those items but assumes the buyer supplies clean records. Neither proposal is automatically better. Normalise the missing work before comparing cost.
If the business is still deciding whether to build, first read custom software versus SaaS for growing companies. Procurement cannot repair a product decision that has not been made.
Run a small evidence-producing engagement
For a material unknown, commission a bounded discovery or technical investigation. Define its output: an integration test, a data-quality report, a prototype evaluated by users or an architecture decision with alternatives. Agree whether any prototype code is suitable for production.
Review how the supplier handles an inconvenient finding. A partner who explains why the original scope needs revision may be demonstrating better judgement than one who keeps the proposal unchanged. Pay for useful investigation rather than asking several vendors to build your product for free.
Adapt the scorecard to the buying situation
Use the Canada RFP guide for language, commercial currency and handover questions. French-speaking buyers can use the cadrage et recette guide. For an integration-heavy purchase, see the Portugal project-or-team decision.
Product teams can compare release ownership for Israeli startups, tenant isolation for Lithuanian SaaS buyers, co-delivery with Polish engineering teams and modernisation handover for Romanian organisations.
Bring your workflow, constraints and current proposal to a discussion of our software engineering services. Request a vendor-scope review to define the evidence your next procurement decision should produce.