CxO™ DELIVERABLE
IT Vendor Selection & Evaluation
IT vendor selection is the process of choosing a technology vendor against written requirements, scoring every candidate the same way and documenting why. DAG Tech's fractional CTO locks the criteria before demos, compares multi-year total cost and exit terms, checks independent references, and hands you a recommendation you can defend.
Custom proposal · Last updated October 2026
The Short Answer
What Is IT Vendor Selection?
IT vendor selection is a structured evaluation that applies one weighted scoring model to every candidate vendor and records the evidence behind each score. Most selections go wrong in familiar ways. Demos drive the decision, and vendors show strengths, not weaknesses. Criteria get written after the products are seen, so they describe one vendor's features. Only license prices are compared, while implementation, migration, training, integration and exit costs are ignored. References come from the vendor's own list. Data portability is not considered until the relationship goes bad. A formal evaluation fixes the method first, so the outcome follows from your requirements rather than the best presentation.
In a CxO engagement vendor selection follows requirements gathering and is tested against your enterprise IT architecture, since a product that breaks your design principles carries costs that never show up in its price.
At a glance
SPEC SHEET- DELIVERABLE TYPE
- Evaluation report and recommendation
- ALSO KNOWN AS
- Vendor evaluation study, technology selection, RFP support
- PRACTICE AREA
- Technology / Fractional CTO
- BEST FOR
- ERP, CRM, PBX, MSP, cloud, backup or security platform decisions
- WHAT WE NEED
- Business requirements, decision makers, current contracts and any vendors already in view
- NEXT STEP
- Contract negotiation and implementation planning
Scope
What We Evaluate
Every candidate is measured against the same criteria, the same questions and the same cost model.
Requirements and weights
Must-haves that eliminate a vendor and scored criteria that earn points, weighted with leadership and locked before any demo.
Longlist and screening
A broad market scan narrowed to a shortlist, with each exclusion and its reason recorded.
Scripted demonstrations
Scenario-based demos built from your real workflows, with every vendor asked the same questions.
Integration fit
Claims tested against your environment, such as Microsoft 365, Entra ID or your line-of-business systems.
Multi-year total cost
Licensing, implementation, migration, integration, training, administration, support and exit costs over three to five years.
Security and compliance
The vendor's security posture, certifications and contract terms against your own obligations.
Lock-in and exit
Data portability, contract length, termination terms and what it would take to leave.
Vendor viability and references
Financial stability, product roadmap and conversations with customers we find independently.
The Deliverable
What You Receive
- Published criteria and weights, agreed before scoring
- Longlist with screening results and documented exclusions
- Scored comparison for each finalist with evidence per criterion
- Three-to-five-year total cost model for each finalist
- Risk, lock-in and reference findings
- Recommendation with a runner-up and the conditions that would change the choice
How It Works
How It Runs
- STEP 01
Kickoff
We confirm the decision, the stakeholders and any vendors already under consideration.
- STEP 02
Fix the Criteria
We agree must-haves, scored criteria and weights with leadership before vendors are contacted.
- STEP 03
Score and Cost
We run scripted demos, test integration claims, model total cost and check references.
- STEP 04
Readout
We present the scored results, the recommendation and the runner-up to decision makers.
When to Start
Signs You Need an IT Vendor Evaluation
- A large contract is up for renewal and you have not looked at alternatives.
- Each stakeholder has a favorite vendor and no shared criteria.
- Quotes are hard to compare because every vendor prices differently.
- A past purchase cost far more to implement than the quote suggested.
- You need to justify the decision to a board, auditor or investor.
- You are unsure how hard it would be to leave the vendor later.
Compare
IT Vendor Selection vs. Enterprise IT Architecture
| IT Vendor Selection & Evaluation | Enterprise IT Architecture | |
|---|---|---|
| Question it answers | Which vendor best meets this specific requirement? | How should all our systems, data and integrations fit together? |
| Output | Scored comparison, cost model and recommendation | Target architecture, transition states and decision record |
| When | When replacing or adding a platform or provider | Before platform changes or when integrations become fragile |
| Led by | Fractional CTO | Fractional CTO |
Related
Often Paired With
FAQ
IT Vendor Selection & Evaluation Questions
Do you write the RFP?
Yes, when an RFP suits the purchase. We draft the requirements, questions and scoring sheet, manage vendor questions and score responses. For smaller decisions a structured request for information and scripted demos are often enough.
Why model five years of cost?
License price is often the smallest part of the total. Implementation, migration, training, integration, administration and eventual exit costs show up over several years and can change which vendor is cheaper.
How much does an IT vendor evaluation cost?
It is scoped in hours at the CxO rate, based on the number of candidates, stakeholders and whether a formal RFP is needed. Your proposal shows the total before work starts.
Get Started
Request a vendor evaluation
Tell us what you need. We scope the hours and send a CxO proposal.
Sent with your request: CxO: vCTO: IT Vendor Selection & Evaluation
- 01A scoping call with a fractional executive
- 02Every task, deliverable, hour and cost in one proposal
- 03A roadmap with start date
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About DAG Tech IT Vendor Selection & Evaluation
IT vendor selection is the process of choosing a technology vendor against written requirements, scoring every candidate the same way and documenting why. DAG Tech’s fractional CTO locks the criteria before demos, compares multi-year total cost and exit terms, checks independent references, and hands you a recommendation you can defend.
IT vendor selection is a structured evaluation that applies one weighted scoring model to every candidate vendor and records the evidence behind each score. Most selections go wrong in familiar ways. Demos drive the decision, and vendors show strengths, not weaknesses. Criteria get written after the products are seen, so they describe one vendor’s features. Only license prices are compared, while implementation, migration, training, integration and exit costs are ignored. References come from the vendor’s own list. Data portability is not considered until the relationship goes bad. A formal evaluation fixes the method first, so the outcome follows from your requirements rather than the best presentation.