How to Choose OEE Software — A 42-Question Buyer’s Checklist

Choosing OEE software in 2026 is harder than it should be. The market has 30+ viable platforms across multiple categories. Vendor websites are designed for marketing impact, not honest comparison. Sales conversations focus on platform strengths and obscure weaknesses.

This 42-question checklist surfaces what vendors will not volunteer. Use it to score each candidate 0-3 per question (0 = does not address, 1 = partial, 2 = good, 3 = excellent). Top platforms typically score 95-115 out of 126.

Dimension 1 — Equipment connectivity (8 questions)

1. Can your platform connect ALL my equipment, including 1980s-90s machines without digital interfaces?
2. What sensor types do you use? (current clamps, photoelectric, vibration, PLC integration)
3. How many PLC brands do you natively support?
4. Do sensors install without modifications to existing equipment?
5. Do you require corporate network changes? Cabling? IT security review?
6. Can data flow bypass plant network entirely (cellular)?
7. How do you handle equipment with no digital interface available?
8. What is the latency from machine state change to dashboard update?

Dimension 2 — Deployment (7 questions)

9. How long from contract signing to live OEE data on first production line?
10. What internal staff time does deployment require? (IT, operations, training)
11. Do you offer a free or low-cost POC on a single line before commitment?
12. What is your typical implementation duration for full plant rollout (5+ lines)?
13. What is your customer onboarding model — self-install, white-glove, or both?
14. Do you provide on-site engineers for deployment, or is it remote?
15. What happens to my data if I cancel the contract?

Dimension 3 — AI & analytics depth (8 questions)

16. Does your platform identify root causes automatically, or only display data?
17. What is your AI architecture? (cross-customer training, single-customer, rule-based)
18. How many factories of training data does your AI have access to?
19. Can you generate predictive maintenance alerts from OEE pattern degradation?
20. Do you correlate losses with operator shifts, product changeovers, machine age?
21. How do you handle micro-stops under 5 minutes?
22. How do you calibrate ideal cycle time? (P10 sustained, nameplate, manual entry)
23. What loss categories does your platform support? (Six Big Losses, sector-specific)

Dimension 4 — Sector references (6 questions)

24. Do you have customer references in MY specific sector?
25. How many customers do you have in my country/region?
26. What is the average OEE point gain your customers achieve in 12 months?
27. Can you connect me with a reference customer at my scale (employee count, line count)?
28. What is your customer churn rate? (>10% annual is concerning)
29. Have you published OEE benchmark data with methodology transparency?

Dimension 5 — Pricing & commercial (7 questions)

30. What is your pricing model? (per-line, per-machine, per-interface, custom)
31. What is the total Year 1 cost including hardware, software, sensors, deployment, support?
32. Are pricing tiers published or all custom quotes?
33. What is the marginal cost to add a second line in 6 months?
34. Do you require multi-year commitment, or is annual acceptable?
35. What is included in support (response time, hours, escalation path)?
36. What is your price increase policy at renewal?

Dimension 6 — Risk & deal-breakers (6 questions)

37. What is the worst customer outcome you have ever had? (Vendors who say “none” are not credible.)
38. Have you been acquired or are you actively for sale?
39. What is your security certification status? (ISO 27001, SOC 2 Type II)
40. What is your data residency model? (EU, US, APAC regional hosting)
41. What does NOT work in your platform? What are you actively building?
42. Why would a customer like me NOT choose your platform?

Questions 41 and 42 are the most important — and the most uncomfortable for vendors. Sales reps unable to answer honestly are signaling you should be cautious.

Scoring framework

For each question, score the vendor 0-3:

• 0 = does not address or evades the question
• 1 = partial answer with significant gaps
• 2 = good answer with minor gaps
• 3 = excellent answer with clear evidence

Maximum total: 126 points (42 questions × 3 max).

Typical scoring patterns:

• 95-115: Top-tier fit. Likely a strong match for your operation.
• 75-95: Acceptable with reservations. Investigate the low-scoring areas.
• 50-75: Likely wrong fit. Consider alternatives.
• Below 50: Almost certainly wrong fit.

Score each shortlisted vendor independently, then compare. Do not let dashboard aesthetics or vendor relationships override the structured score.

Watch: How TeepTrak Customers Transform OEE

Related guides

• Best Oee Software
• Top 10 Oee Software Platforms
• Oee Roi Calculation Guide
• Mes Vs Oee Software Decision
• Oee Software Small Manufacturers

Frequently Asked Questions

How do I choose the right OEE software for my plant?

Use a structured 42-question checklist across 6 dimensions: equipment connectivity, deployment, AI/analytics depth, sector references, pricing transparency, and risk. Score each candidate 0-3 per question. Top platforms typically score 95-115 out of 126; platforms below 75 are usually wrong fit.

What questions should I ask OEE software vendors?

Beyond the obvious feature questions, ask the unconventional ones: “What does NOT work in your platform?”, “What is the worst customer outcome you have had?”, “Why would a customer like me NOT choose your platform?”, “What is your AI training data scale?”, “Can data flow bypass our plant network?”. Vendors evading these signal caution.

How important are sector references when choosing OEE software?

Critical. A food manufacturer and a precision machine shop have different OEE loss patterns and need different sensor strategies. Vendors without proven references in your specific sector at your scale are higher risk. Ask for at least 2 reference customer conversations in your industry before committing.

Should I require a POC before purchasing OEE software?

Yes. Vendors offering a free or low-cost POC on a single line let you measure actual baseline OEE directly (not estimated) and validate the OEE point gain achievable. TeepTrak’s free 48-hour POC and Tractian’s 14-day risk-free trial are examples. Vendors without POC paths are higher risk.

How long should OEE software evaluation take?

Typical evaluation timeline: 4-8 weeks. Week 1-2: vendor research, shortlist of 3-5 candidates. Week 3-4: detailed conversations, 42-question checklist scoring, reference customer calls. Week 5-6: POC on one line with top 1-2 vendors. Week 7-8: business case, finance review, contract negotiation.

What is the biggest mistake when choosing OEE software?

Choosing on dashboard aesthetics over equipment connectivity. A platform with pretty UI that cannot connect to your legacy machines will produce incomplete OEE data and mislead production decisions. Always prioritize: (1) equipment connectivity breadth, (2) deployment speed, (3) AI analytics depth, (4) sector references with at-scale customer conversations.