Industrial Control Systems (PLC/SCADA)
Complex deployments where integration, safety, and operational handoff determine production success.
Inside this journey
-
Pre-Discovery
Align the room on outcomes, decision process, and constraints before deeper discovery.
-
Stakeholder Alignment
Confirm decision roles, project timeline, budget constraints, and what ‘good’ looks like for each stakeholder.
Alignment Questions
Start Here: Paint a Picture of Today's Control Room
- Who are you and what role do you play in decisions about control platforms, spare parts, or cyber/OT strategy?
- Tell me briefly about the site or machine this conversation is about (location, process type, single line description).
- Which controller families and HMI/SCADA products are currently running here?
- How would you classify the criticality of this asset to your operation?
- Roughly how long have your current controllers and HMI/SCADA been in service?
- What’s one thing about your current setup that you wish someone understood before talking solutions?
If You Could Snap Your Fingers, What Would Break First?
- When you think about failure, what single failure mode worries you most right now—and why?
- How often are you experiencing unplanned outages, PLC faults, or repeat failure patterns today?
- Tell me about the last meaningful failure—what happened, how long to recover, and what follow-up work did it trigger?
- What spare-parts strategy do you currently rely on?
- How long would a critical controller or I/O replacement typically take from order to installation at your site?
- When failures occur, how does it feel for your team—panic, resigned, empowered to fix, or stuck waiting for parts or expertise?
How Much Are You Having to Compromise?
- Is the way you currently select and maintain controllers driven by engineering best-practices or by what’s cheapest/easiest to support today?
- Where do you feel most under-resourced: programming productivity, documentation, networking, cyber hardening, or spare-part planning?
- Which programming environments and languages are your team using most (pick all that apply)?
- How much of your engineering time goes into maintaining existing ladder/logic vs. developing new capabilities?
- What impact do these compromises have on your team’s morale, retention, or confidence in taking on upgrades?
- If you had one inefficiency you could remove from your controls lifecycle, what would it be and why?
Is Your Network a Friend or a Time Bomb?
- If someone asked whether your OT network is designed to stop an attacker or merely detect one, which would you choose?
- Describe your current network segmentation and remote access approach (e.g., dedicated OT VLANs, VPN with jump host, direct IT-OT integration).
- Have you experienced a cybersecurity event that impacted controls in the past 3 years? If yes, what changed afterwards?
- What compliance or regulatory constraints does your operation need to satisfy (e.g., NERC CIP, ISA/IEC 62443, local water/health regs)?
- Which cyber controls would give you the greatest peace of mind: segmentation, device authentication, managed patching, deep visibility, or vendor-managed appliances?
- How does the idea of exposing OT to enterprise IT make your team feel—excited about integration, anxious about risk, or pragmatic about trade-offs?
What Would Success Actually Look Like in 12–24 Months?
- If we measured success a year from now, which single metric would tell you the project delivered real value?
- What MTBF or reliability target would feel like a meaningful improvement over today?
- Describe the operating day-in-the-life you’d like after migration (how do engineers respond to alarms, deploy changes, manage spares)?
- Which scope items are must-haves versus nice-to-haves: controller redundancy, hot-swappable I/O, integrated HMI, historian, managed switches, or vendor training?
- What acceptance criteria would make you confident to sign off on a migration or new installation (e.g., FAT/SAT results, MTBF validation, cybersecurity testing)?
- If training is included, what does success for your team look like—certified capability, train-the-trainer, or occasional refreshers?
What's Standing Between Today and That Future?
- What single internal constraint would derail this kind of project if left unaddressed (budget, approvals, outage window, or staff availability)?
- Tell me about your budget timing and thresholds—are upgrades part of this year’s CAPEX, next year, or opportunistic?
- How comfortable is your executive team with a staged migration versus a big-bang cutover?
- What are your biggest unknowns about migration risk (program conversion fidelity, downtime, staff ramp-up, or cybersecurity during cutover)?
- If we identified a quick pilot that de-risks the approach, what would it need to prove to get internal approval?
- How does your team usually respond to external partners taking technical ownership—relief, skepticism, or eager collaboration?
If We Partnered, How Would You Want Us to Show Up?
- Would you prefer a vendor-led approach, integrator-led with vendor support, or a co-delivery model where responsibilities are split?
- Which commercial terms give you confidence up front: fixed-price pilot, time-and-materials with capped risk, phased milestone payments, or subscription/lifecycle pricing?
- What SLAs and lifecycle commitments matter most—response times, spare-part guarantees, firmware/patch support, or long-term BOM stability?
- How do you want knowledge handed over: full program source code with libraries, version-controlled repository, classroom training, or shadowing during cutover?
- What cadence of communication and governance would make you comfortable: weekly tactical calls, monthly steering, or milestone-only updates?
- What would make you say ‘yes’ to a pilot engagement within the next 60–90 days?
Deciding Moment: When Would You Say Yes?
- If you had all risks mitigated and funding approved, what's the soonest realistic start date for a migration or upgrade project at this site?
- Who are the decision-makers that must sign off for this to proceed, and what does each care about most?
- What internal proof points (FAT results, pilot ROI, reference site visits) would accelerate executive approval?
- Assuming we prepared a one-page executive brief, what are the three bullets you would want highlighted to get buy-in?
- Are there stakeholders outside of controls (e.g., IT security, operations, finance, safety) we should bring into the next conversation?
- What would you like our next step to be after this discovery (technical deep-dive, pilot design, budgetary quote, or executive briefing)?
-
Current Control Environment
Document installed controllers, I/O topology, obsolescence, spare parts, network architecture, and known failure modes.
Current State
Let’s Walk Your Control Floor Together
- To start simply: which controller families and vendors are running your lines or plants today?
- How many discrete controller installations (panels, racks, on‑machine controllers) do you manage across the site or scope we’re discussing?
- Which environments are these controllers supporting? (pick all that apply)
- Roughly how old are the controllers in your fleet (give ranges if heterogeneous)?
- Who on your team is the day‑to‑day owner for control hardware and program repositories?
Are We Just Living With It? — Questioning the ‘Good Enough’ Assumption
- If someone asked why you haven't modernized these controllers yet, what's the honest reason you'd give?
- Where do you feel most exposed: reliability, parts availability, cybersecurity, or engineering productivity? Tell me which and why.
- How often do control‑related incidents cause unplanned production loss, and what does that typically cost you (time or dollars)?
- When a recurring control problem happens, what do you usually do first—and why does that fix (or not fix) the root cause?
- Who on the team loses sleep over these issues, and which outcomes would make them sleep better?
Where Do Spare Parts and Lifecycles Hide Their Risks?
- If your primary controller supplier stopped selling a critical module tomorrow, how long could you run before operations were at risk?
- What critical spare parts do you actively stock today (CPU, I/O modules, power supplies, specialty analog modules, communication cards)? List the top 5 and why each is critical.
- How do you track spare‑part health—serials, firmware revs, shelf life, supplier obsolescence notices?
- Have you had to cannibalize equipment or pay expedited premiums because a part was EOL? Walk me through the last time that happened.
- When you think about a 20‑year lifecycle, what’s your biggest fear about parts and support—and how would you prefer that risk be managed?
How Fragile Is Your Network—and Who’s Actually In Charge?
- If an attacker gained access to one controller, how easily could they move laterally across your OT network?
- Describe your network topology for control systems: flat plant LAN, zoned with VLANs, air‑gapped, or cloud‑connected? Please note key segments (controllers, HMIs, historians, engineering stations).
- Who owns firewall rules, remote access, and patch windows—IT or OT? How do handoffs happen when changes are needed?
- When was the last time you ran a segmentation test, vulnerability scan, or tabletop incident response that included controllers? What surfaced?
- How confident are you in restoring control communications after a network outage—can you recover without vendor support?
When Controllers Fail, Who’s the Hero—and How Long Do They Fight?
- Think about the last controller failure that cost you hours of production—what exactly failed and why do you think it happened?
- Which failure modes recur most often (power supply, CPU, I/O channel drift, firmware incompatibility, communication errors, environmental)?
- What are your mean time to detect, mean time to repair, and mean time between failures targets today—and how do the actuals compare?
- Tell me about your backup and rollback practices: where are program images stored, who can access them, and how quickly have you completed a rollback in the past?
- If we could shave repair time by 50%, what impact would that have on your team, schedule, and costs?
What Would a Low‑Risk Migration Actually Look Like?
- If you told me you’d never migrate because the risk is too high—what specifically are you most afraid will go wrong?
- Which elements must remain unchanged during migration (I/O mapping, HMI screens, safety interlocks, historical data), and which are negotiable?
- How do your programmers prefer to work today (ladder, function block, structured text, vendor‑specific IEC tools), and how would you like that to change?
- What timeline windows are realistic for outages or cutovers—overnight, weekend, scheduled shutdown—and what constraints (production, regulatory, safety) govern them?
- What acceptance criteria will make your operations team sign off on a migration (MTBF target, failover test, HMI parity, cybersecurity proof), and who must approve it?
Who Decides, Who Fixes, and What Success Actually Looks Like
- Who are the decision‑makers and influencers for control hardware and lifecycle spend (names/titles/functions)?
- What KPIs or success signals will make this project feel worth it—reduced downtime, fewer service calls, consolidated spares, faster programming, improved cybersecurity?
- How does budget get allocated for controller refresh—capex project, operating expense, or charged to maintenance—and what's the typical approval lead time?
- If we proposed a phased approach that left critical legacy controllers in place while modernizing others, how comfortable would you be with that trade‑off between risk and speed?
- What would a successful handoff look like after deployment—who needs what documentation, training, and support to be confident long term?
-
-
Customer Discovery
Clarify target reliability, MTBF expectations, cybersecurity posture, programming productivity goals, and success signals.
Discovery Questions
Opening: What Brought You Here Today?
- Briefly describe the single most important outcome you want from this controls project.
- Which of these best describes why you initiated this evaluation now?
- Who are the core decision-makers and influencers for this purchase (titles or roles)?
- What timeline do you have for a commercial decision and for field cutover?
- Do you have a ballpark budget or budget approval process we should understand? If so, please summarize.
If Your Controllers Failed Tomorrow, What Would Break?
- How would a full controller failure on a critical line affect production and safety in the first 24 hours?
- Which assets or processes are mission-critical and must remain running without interruption?
- Estimate your typical cost of unplanned downtime (per hour) for impacted equipment.
- Tell us about the last time you experienced a controller or I/O failure—what failed, how long to recover, and what made it difficult?
- How comfortable are you with your current mean time between failures and the visibility you have into asset health?
Are You Comfortable With Your Current Security Posture?
- If someone said your OT network is the easiest path to your most sensitive systems, would you be surprised?
- How is your control network segmented from corporate IT and third‑party access today?
- Do you maintain an asset inventory and software/firmware bill-of-materials for controllers and I/O?
- What security controls are in scope or required for this project (select all that apply)?
- Who owns OT cybersecurity decisions and incident response at your site?
What Does ‘Reliable’ Really Mean For You?
- If reliability meant more than uptime, what would it also guarantee—predictability, easy repairs, long parts life, or something else?
- What MTBF or availability targets would make you confident to standardize on a new platform?
- Which failure modes cause the most pain (controller CPU, I/O modules, comms/network, power supplies, environmental)?
- How quickly do you need systems back online after a partial or full failure to avoid unacceptable consequences?
- Describe your spare-parts strategy today and any challenges you've had sourcing replacements over a 10–20 year lifecycle.
How Fast Should Your Engineers Be Able To Deliver?
- If your engineering team could halve their project and commissioning time, what would that enable for the business?
- Which programming environments and languages does your team use most (select all that apply)?
- Where do engineers currently lose the most time—tooling, build/compile/deploy, debugging, documentation, or integration with HMI/SCADA?
- How important is it that a new platform supports hot-swappable I/O, online edits, or version-controlled programming workflows?
- Describe one recent example where the programming or commissioning experience caused schedule slippage—what happened and how did the team react?
Imagine the Migration Without Sleepless Nights
- What is the one intolerable risk during migration that would keep you up at night?
- What maximum allowable downtime window do you have for cutover activities?
- Which of these success signals would make you say the migration was a success (choose top three)?
- What level of vendor or integrator involvement do you expect during cutover and initial support?
- Describe your ideal handover: what documentation, training, and acceptance tests must be delivered before you sign off?
What Would Make Us a Trusted Partner — Not Just a Supplier?
- Have past vendors met your expectations for lifecycle support and spare availability, or did they fall short? What happened?
- What warranty, spare-parts, and long-term support terms would make you comfortable locking in a platform for 10–20 years?
- How important are local certified integrators and a regional installed base when selecting a control platform?
- What SLAs (response time, on-site support, remote diagnostics) do you require post-installation?
- If we could design a pilot or proof-of-value that removes your top three concerns, what would that pilot need to demonstrate?
- Are you ready to commit to next steps (pilot, deeper technical workshop, or commercial review) within your stated timeline?
-
Solution Experience
Validate migration and operating scenarios by walking through the customer’s assets, failure cases, and desired future state.
Experience Meetings
- Solution Experience — Prep & Current-State Confirmation
- On-Site Asset & Failure Modes Walkthrough
- Migration Scenario Walkthrough — Cutover, Rollback & Risk
- Operating Scenario Validation — Live Customer Cases
- Executive Confirmation & Acceptance Criteria Alignment
- Translate demonstrations into pass/fail acceptance-test cases for the Validation Checklist stage.
- Agree a detailed migration runbook with owners, timestamps, and rollback triggers.
- Identify and accept the critical path and the maximum allowable downtime for cutover.
- Confirm spare parts, backups, and integrator resources required on-site for migration.
- Define explicit validation checkpoints that prove whether to continue or rollback.
- Seller to draft and circulate the migration runbook (step-by-step) within 3 business days.
- Customer to stage and verify required spare parts and firmware images at a holding area before cutover.
- Schedule a factory acceptance test or lab dry-run for the highest-risk cutover step.
- One-Sentence Recap: Current State, Consequence, Future State
- Prove at least one high-impact failure mode is eliminated or materially mitigated by the proposed solution.
- Measure and agree recovery time and performance against consequence metrics (e.g., downtime minutes saved).
- Obtain explicit customer validation (yes/no/conditional) for each demonstrated scenario.
- Introductions & Meeting Objectives
- Capture demonstration logs, recovery times, and screenshots and attach them to the validation report.
- Seller to draft acceptance-test cases based on demonstrated scenarios for customer review.
- Schedule formal Site Acceptance Test dates and assign attendees for each test case.
- Executive Summary: One-Sentence Current State, Consequence, Future State
- Secure executive sign-off on the future-state definition and the measurable acceptance criteria.
- Confirm budget and timeline constraints that will govern the Mutual Commit stage.
- Assign executive owners for commercial decisions, cutover approval, and lifecycle support commitments.
- Produce an executive summary and sign-off document capturing acceptance criteria and owners for formal signatures.
- Seller to prepare a Mutual Commit checklist (commercial, SLAs, spare parts, support) for final negotiation.
- Customer to confirm budget holder and date for final approval to enter Mutual Commit stage.
- Produce and agree a single-sentence current state that the whole team can repeat.
- Document explicit consequence metrics tied to business impact (cost/downtime/safety) for at least the top two failure modes.
- Agree a single-sentence future state outcome to prove during the Solution Experience.
- Confirm required artifacts and schedule for the on-site asset & failure walkthrough.
- Customer to deliver final asset inventory, failure logs, spare-parts list, and network diagram 3 business days before the walkthrough.
- Seller to prepare a template one-sentence current-state and consequence summary for review.
- Schedule and confirm on-site walkthrough date, attendees, and data-capture ownership.
- Opening & Objective Alignment
- Confirm actual installed inventory, serials, firmware versions, and obsolescence for controllers and I/O.
- Recreate or validate the sequence of events for top failure modes and who/what is impacted.
- Identify physical and network single points of failure and immediate mitigations.
- Collect evidence and photos required to prove scenarios in later validation sessions.
- Tag and photograph obsolete controllers and document serial numbers for migration planning.
- Customer to provide recent PLC error logs and historian excerpts for validated failure timelines.
- Assign owner to each identified critical single-point-of-failure and capture who will be responsible for short-term mitigation.
- Recap Current State, Consequence & Future-State Target
- End-to-End Migration Sequence
- Live Simulation of Primary Failure Case
- Review of Provided Artifacts
- Evidence Review from Validation Sessions
- Asset Verification Tour
- Agree Acceptance Criteria & Success Signals
- Draft the One-Sentence Current State
- Cutover Risk Points & Contingency Actions
- Failover & Recovery Demonstration
- Failure-Case Walkthroughs
- Network & Cybersecurity Topology Check
- Rollback & Recovery Dry Run
- Cybersecurity & Remote Access Scenario
- Commercial & Scheduling Dependencies
- Quantify Consequence
- Immediate Risk Tagging & Prioritization
- Resource, Spare-Part & SLA Impact Review
- Define One-Sentence Future State
- Forced Validation & Customer Confirmation
- Decision & Next Steps
- Logistics & Prep for On-Site Walkthrough
-
Solution Scope
Specify controllers, I/O, HMI/SCADA integration, networking, cybersecurity modules, services, training, and acceptance criteria.
Scope Configuration
- Install Panel-Mount PLC and Power Supply
- Wire and Terminate Modular I/O Modules
- Program PLC Control Logic (Ladder/FB/ST)
- Migrate Legacy Controller Code to New PLC
- Install and Configure HMI/SCADA Visualization
- Deploy Historian and Tag Database
- Install and Configure Managed Industrial Switches
- Deploy OT Firewall/VPN and Network Segmentation
- Install Redundant Controller Rack and Synchronization
- Configure Motion Control Axes and Servo Tuning
- Mount and Commission IP67 On‑Machine I/O Nodes
- Deliver Operator and Maintenance HMI Training
Scope Questions
Install Panel-Mount PLC and Power Supply
- What form factor of PLC is preferred for the panel (compact, modular, rack)?
- What supply voltage and redundancy are required for PLC power?
- What environmental rating and temperature range must the panel meet?
- How many PLC CPU slots and local I/O capacity should be planned (approximate)?
- Are there panel space or mounting constraints (rack units, depth, door clearance)?
- Do you require integrated power conditioning, UPS, or surge protection in the panel?
- List any required certifications or standards for the PLC/power (CE, UL, IECEx, etc.).
Wire and Terminate Modular I/O Modules
- What types and approximate counts of I/O will be wired (DI/DO, AI/AO, thermocouples, RTDs, etc.)?
- What terminal style do you prefer for wiring termination?
- Are there shielded cable requirements or specific cable types for analog/encoder signals?
- What is the longest field wiring run length we should plan for (estimate)?
- Will wiring include intrinsically safe or hazardous-area circuits requiring barriers or isolation?
- Do you require tagging/labeling and as-built wiring documentation as part of the deliverable?
- Are test points, commissioning jumpers, or terminal strip access required for maintenance?
Program PLC Control Logic (Ladder/FB/ST)
- Which programming languages and standards will be used for control logic?
- What are the key functional deliverables for PLC code (interlocks, PID, batch, recipes, safety interfaces)?
- What are the required PLC scan performance or determinism requirements (cycle time targets)?
- Do you require offline simulation, unit testing, or model-in-the-loop verification of logic?
- Will code follow existing naming, documentation, and revision-control standards?
- Do safety-rated functions need to be implemented in the PLC or via separate safety PLCs?
- Describe any integration points for third-party devices, drives, or vendor libraries.
Migrate Legacy Controller Code to New PLC
- What is the legacy controller platform and version (brand/model)?
- Is the original source code and documentation available for migration?
- What is the estimated complexity of the legacy programs (I/O count, function blocks, custom instructions)?
- Do you prefer automated code conversion tools, a line-by-line port, or a full redesign during migration?
- What allowable downtime window exists for migration and cutover activities?
- Are there known deprecated or unsupported hardware or modules that require re-mapping?
- What acceptance tests and validation criteria should migrated logic meet?
Install and Configure HMI/SCADA Visualization
- How many operator workstations, local HMIs, and SCADA servers are required?
- What visualization screens or templates are required (alarm summaries, process mimic, trends, reports)?
- Do you require multi-user roles and permissions within the HMI/SCADA?
- Is high-availability / hot-standby required for SCADA servers?
- Will the HMI need web or mobile remote access for monitoring?
- Do you require alarm management services (nuisance reduction, prioritization, SLA handling)?
- Are there existing HMI templates or corporate branding guidelines to follow?
Deploy Historian and Tag Database
- Approximately how many tags/points will be collected to the historian?
- What sample rates and retention policies are required for tags (seconds, minutes, long-term archive)?
- Where will historian storage reside (on-premises SAN, local server, cloud)?
- Do you require compression, aggregation, or roll-up policies for long-term storage?
- Will historian data be used for analytics or MES integration?
- What backup, restore, and retention SLAs are required for historian data?
- Are there regulatory or audit requirements for data storage and access?
Install and Configure Managed Industrial Switches
- How many switch ports and approximate device counts per site are required?
- Do you require managed features (VLANs, QoS, IGMP snooping, port security)?
- Is redundancy required (RSTP, MSTP, PRP, HSR) or ring topologies?
- Will you use fiber uplinks, copper, or mixed media between switches?
- Do any switches require PoE for cameras, Wi-Fi APs, or I/O devices?
- Are there environmental or mounting constraints (DIN-rail, rack-mount, IP-rating)?
- Do you need centralized switch management or monitoring (SNMP, NetOps integration)?
Deploy OT Firewall/VPN and Network Segmentation
- What network zones and segmentation are required (PLC zone, DMZ, enterprise, remote access)?
- Do you require site-to-site VPN, remote operator VPN, or both?
- Which protocols and ports must be explicitly allowed for OT traffic?
- Is integration with existing IT firewall or SOC required for logging/alerts?
- Do you require VPN client management, MFA, and certificate-based authentication?
- Are high-availability firewalls or active/passive pairs required?
- What logging retention and incident response SLAs are expected?
Install Redundant Controller Rack and Synchronization
- Is controller redundancy required (hot standby, warm standby, cold standby)?
- What failover time or availability SLA must the redundant system meet?
- Does the application require stateful synchronization of I/O, timers, and memory blocks?
- Are there rack space, power (A/B feeds), and network redundancy constraints to plan?
-
Mutual Commit
Agree on commercial terms, lifecycle support, spare-part availability, SLAs, and responsibilities for cutover and acceptance.
Agreement Modules
- Statement of Work (SOW)
- Master Services Agreement (MSA)
- Service Level Agreement (SLA)
- Purchase Order & Commercial Terms
- Warranty & Spare-Parts Commitment
- Lifecycle Support & Obsolescence Plan
- Cutover & Acceptance Plan
- Cutover Liability & Risk Allocation
- Software License & Maintenance Agreement
- Cybersecurity Responsibility & Compliance Commitment
- Training & Knowledge Transfer Agreement
- FAT/SAT & Test Schedule Agreement
- Spare-Parts & Logistics SLA
- Change Order & Scope Management Process
- Escalation & Governance Matrix
-
Deployment
Operationalize rollout with readiness checks, enablement, and outcome validation.
-
Pre-Deployment Readiness
Confirm site access, backup configurations, network segmentation, test environments, spare parts, and integrator assignments.
Readiness Questions
Getting Comfortable Before We Visit
- Who will be our primary onsite point of contact for deployment and commissioning?
- What are your preferred windows for onsite work (select all that apply)?
- How many onsite staff typically support visiting vendor teams during a cutover?
- Are there mandatory site requirements (badging, PPE, contractor orientation, background checks) we should arrange ahead of time?
- Please describe any site security, escort, or access policies that will affect our visit (free response)
What Could Go Wrong on Day One?
- If our first deployment visit triggered an unplanned outage, what single cause would you put at the top of the list?
- How often have deployments or upgrades at this site required an unplanned rollback in the last 24 months?
- Tell us about the most recent deployment failure or near-miss and what you learned from it.
- What contingency capabilities do you currently have for rapid recovery (select all that apply)?
- What is the expected maximum time to restore a failed controller or control loop and return to production?
How Protected Is Your Network, Really?
- When a vendor needs commissioning access, what is the single biggest cybersecurity hurdle they'd encounter?
- How is your OT network segmented today?
- Do you permit remote vendor access for commissioning or diagnostics, and if so how is it provisioned?
- Do you maintain an inventory of required firewall exceptions, open ports, and approved protocols for commissioning activities?
- Which cybersecurity standards or baselines must deployments comply with here?
- If we need to present network diagrams or request firewall exceptions, who is our contact and typical turnaround time?
Do You Have a Safe Test Bed?
- Would you allow a full failover or performance test on production as part of cutover if we had an agreed rollback plan?
- Do you maintain a staging/test environment that mirrors production controllers, I/O topology, HMI, and network?
- How are production backups and controller images managed (frequency and storage location)?
- If we assemble a temporary test bench onsite, what physical or procedural constraints must we respect (space, power, approvals)?
- Who is authorized to approve execution of tests in non-production environments?
Can You Afford Downtime — and Who Owns It?
- Would you prefer a longer, fully validated outage with high confidence of success, or a shorter riskier window with potential rollback?
- What is the maximum acceptable outage duration for this system during cutover?
- Which production windows are strictly off-limits for any changes (select all that apply)?
- Who has authority to approve an outage and who can declare a rollback if necessary?
- Describe the decision triggers that would cause your team to call a rollback during cutover (metrics, alarms, operator feedback).
Spare Parts and Long-Term Support: Are You Covered?
- If a controller module failed tomorrow, how long would you expect a replacement to be available onsite?
- Where are your critical spares held today?
- Which components do you consider critical to have onsite for a 24/7 process (select all that apply)?
- Are there any obsolescence, sourcing, or long-lead items we must plan for now?
- Would you be open to a vendor-managed spare pool, kitted spares for cutover, or consignment options?
People, Permissions, and Skill Gaps
- Who will be in the room during cutover and who is authorized to make changes (select all that apply)?
- What level of experience does your onsite staff have with our control platform?
- Are there certifications or clearances technicians must hold before touching systems (LOTO, IT clearance, union credentials)?
- Who should be our escalation contact for technical decisions between integrator, vendor, and plant?
- How do you prefer training and handover to be delivered at cutover—on-site live, remote live sessions, recorded modules, or documentation only?
What Does Acceptance Look Like?
- If the system meets all technical specifications but operators find workflows harder, would you consider that an acceptable outcome?
- What measurable acceptance criteria must we meet for final sign-off (cycle time, alarm latency, MTTR targets, throughput)?
- Which evidence formats do you require for FAT/SAT and acceptance (select all that apply)?
- Who will provide final sign-off and what is the preferred format (email approval, signed form, ERP/CMMS change order)?
- What warranty, post-acceptance support period, and SLA response times do you expect?
Hidden Costs, Approvals, and Procurement Gates
- Have internal approval gates, procurement delays, or financing steps derailed deployments here before?
- What budget codes, PO lead times, or procurement windows should we factor into scheduling?
- Do third-party approvals (safety committee, union rep, environmental) need to be scheduled as part of deployment?
- What commercial change-order structure do you prefer if scope or schedule shifts during deployment?
- Who is authorized to approve additional costs or schedule changes in the field?
Next Steps: Making Deployment a Non-Event
- If you could eliminate one deployment headache forever, what would it be?
- Which readiness items should we prioritize in the next 30 days to de-risk cutover (select up to three)?
- How soon can we schedule a site readiness call to finalize these items?
- Who else from your organization should be invited to that readiness call (names / roles)?
- Anything else—risks, politics, or constraints—we should know before we arrive?
-
Deployment Enablement
Schedule factory and site acceptance tests, coordinate cutover steps, rollbacks, training, and resource ownership.
-
Validation Checklist
Run failover, performance, and cybersecurity tests; verify programming handover, documentation, and acceptance criteria.
Validation Questions
Opening: Tell Us About the Project
- Which of these best describes the initiative you're exploring?
- In a sentence, what is the single most important business outcome this project must deliver?
- What is your target go-live or decision date?
- Who will be the primary decision-makers and technical approvers for this project? (select all that apply)
- How have similar projects been funded and approved in the past at your organization?
- Who else should we include in early conversations to avoid surprises later?
Are You Quietly Tolerating Downtime?
- How often do unexpected controller or I/O failures interrupt production?
- When disruption happens, which root causes show up most frequently? (pick up to 4)
- Describe the most recent incident that cost you significant uptime—what failed, how long did it take to recover, and how did it feel for the team?
- What’s your current estimate of average MTBF for critical controllers or nodes you rely on?
- How confident are you that spare parts and replacement modules will be available if a key component fails?
- How does downtime show up in KPIs you report to operations or leadership (e.g., lost throughput, quality impacts, safety risk)?
Who Truly Owns Risk Here?
- If a controller migration increased production risk for two weeks, who in your organization would push back hardest—and why?
- Which groups have competing priorities that could slow decision-making for this project? (select all that apply)
- How are acceptance criteria and sign-off normally assigned between production, engineering, and IT?
- Tell us about a time stakeholders disagreed on a controls decision—what derailed progress and how was it resolved?
- Is there a formal change control or outage approval process we need to align with before proposing cutover windows?
Show Me Your Control Landscape
- Which controller families and firmware versions are currently installed across the scope? (list models, counts, firmware)
- What is your I/O topology and typical module mix (digital, analog, special modules, remote I/O)?
- How is your control network structured today? (select the diagram that best matches)
- Which programming environments and languages do your engineers most commonly use?
- Where do you have known obsolescence or end-of-support risks today (controllers, HMI, switches, proprietary modules)?
- How do you currently back up controller logic, HMI screens, and network configs—and how often?
If We Could Remove One Operational Headache…
- Imagine the control platform problem you hate most disappears overnight—what measurable difference would you see in week one?
- What target MTBF or uptime figure would change how you feel about your platform choices?
- How much faster would engineering need to be (e.g., % reduction in programming or commissioning time) to consider a platform change worthwhile?
- Describe the cybersecurity posture you’d be proud to show enterprise IT—what controls, audits, or certifications matter most?
- Which operational KPIs (throughput, OEE, MTTR, safety events) should we measure to prove success?
- What would you consider an acceptable timeline to achieve those improvements post-cutover?
What Would Migration Look Like Without Drama?
- If you could demand one non-negotiable from a migration plan, what would it be (speed, zero lost logic, full rollback, safety-first, etc.)?
- Which migration approach would you prefer for critical lines: parallel run, phased cutovers per cell, full site cutover, or hot-swap modules?
- What maximum acceptable production window can you allocate for a cutover on a critical line?
- Do you currently have a validated rollback plan and tested backups specifically for controller logic and HMI?
- Which validation activities are most important to you during cutover? (select up to 4)
- How involved do you want your system integrator versus our team during migration (design, configuration, on-site commissioning)?
Money, Support, and Life After Cutover
- What level of lifecycle commitment do you expect from a platform vendor (spare parts lead times, 10+ year support, firmware security patches)?
- Which spare-parts strategy best matches your tolerance for risk?
- What SLA tiers matter most to you after acceptance (response time, on-site support, remote troubleshooting)?
- What training format accelerates your team's ramp-up—hands-on factory training, virtual sessions, train-the-trainer, or on-site shadowing?
- What price vs. risk trade-offs are acceptable—do you prefer a higher upfront cost for lower operating risk, or lower CapEx with higher long-term risk?
- If parts or firmware stop being available mid-life, what remediation options would you prefer (remanufactured modules, retrofit kits, migration discounts)?
How Will We Verify Success?
- What single test or result would make you comfortable signing final acceptance?
- Which of these validation activities must be included in FAT/SAT? (select all that apply)
- Who must be present to approve acceptance on site (roles, names if known)?
- What documentation and artifacts must be delivered at handover?
- How would you like post-deployment reviews to be scheduled and structured (timing and topics)?
- What constitutes an actionable open-item or defect that must be resolved before project closure?
What Would Make This Easy to Start?
- If you had to name one small, low-risk pilot that would prove value quickly, what would that pilot be?
- What prerequisites do we need from you to run that pilot (site access, test assets, spare parts, credentials)?
- Which contacts should we engage immediately to remove scheduling barriers (names, roles, preferred contact method)?
- What is a realistic near-term decision timeline for approving a pilot or statement of work?
- What concerns would cause you to pause before agreeing to a pilot, and how can we mitigate them up front?
-
-
Success
Confirm outcomes against success signals, schedule lifecycle reviews, and maintain a shared backlog for issues and enhancements.
Success Reviews
- Success Validation Review
- Lifecycle Review Planning
- Shared Backlog Grooming (Issues & Enhancements)
- Operational Handover & Training Validation
- SLA, Spare Parts & Support Commitment Review
Issues & Enhancements
- Create a prioritized remediation plan for any remaining competency or documentation gaps.
- Opening & Objectives
- Produce a spare-parts risk register with recommended procurement actions for critical items.
- Document the security patch/test/deploy workflow and initial schedule for upcoming firmware updates.
- Backlog Overview & New Items
- Maintain a prioritized, actionable backlog with clear owners and acceptance criteria.
- Ensure high-risk operational issues are scheduled for immediate remediation and lower-risk enhancements are batched into releases.
- Improve backlog governance to reduce triage time and increase delivery predictability.
- Create or update tickets for all discussed items with priority, owner, and acceptance criteria.
- Reserve capacity in the next maintenance window for high-priority fixes and notify affected stakeholders.
- Publish the updated backlog report and next-grooming date to the shared project workspace.
- Handover Summary (one-sentence)
- Confirm plant teams can operate and maintain the system to the required standards.
- Ensure all operational documentation and code repositories are complete and accessible to owners.
- Capture evidence artifacts to store in the shared project record.
- Deliver final documentation bundle and verify access permissions for operations and maintenance teams.
- Schedule targeted remedial training sessions for any roles that did not meet competency thresholds.
- Confirm code repository ownership and branch protection rules; document change-control workflow.
- SLA Performance Review
- Confirm support commitments and documented escalation routes for operational incidents.
- Ensure critical spare parts are procured, reserved, or a mitigation path is defined for obsolescence risks.
- Agree any contractual changes or commercial actions needed to sustain the installed base.
- Update the SLA performance dashboard and circulate a remediation plan for any metrics below target.
- Place purchase orders or reserve stock for identified critical spare parts and log expected delivery dates.
- Publish the finalized escalation matrix and major-incident playbook to the operations team.
- Objectively confirm which success signals are met and which are outstanding.
- Agree on remediation actions, owners, and timelines for any unmet signals.
- Obtain customer confirmation or conditional sign-off to progress to lifecycle phase.
- Publish a signed success validation record listing met signals, outstanding items, owners, and deadlines.
- Attach evidence artifacts (test logs, MTBF calculations, cybersecurity test reports) to the project folder.
- Schedule a follow-up validation review aligned with remediation completion dates.
- Lifecycle Status Snapshot (one-sentence)
- Define and calendarize a sustainable lifecycle review cadence and agenda.
- Ensure a documented spare-parts and obsolescence management plan covering the expected installed life.
- Assign lifecycle owners and establish escalation paths and update processes.
- Create and share the lifecycle review calendar series with owners and required pre-read artifacts.
- Prioritization using Impact/Urgency Matrix
- Spare Parts Inventory, Lead Times & Risk Mitigation
- Training Outcomes & Competency Evidence
- Spare Parts & Obsolescence Assessment
- One-sentence Current State
- Security & Firmware Update Cadence
- Consequence Summary (cost/risk)
- Support Model & Escalation Paths
- Define Acceptance Criteria & Definition of Done
- Documentation & Version Control Review
- Assign Owners, Target SLAs, and Release Slots
- Success Signals & Evidence Review
- Lifecycle Review Cadence & Agenda Template
- Commercial Lifecycle Support Terms
- Programming Handover & Code Ownership
- Contingency & Continuous Improvement Actions
- Gap Analysis & Root Cause
- Process & Governance Improvements
- Roles, Escalation & Communication Protocol
- Open Knowledge Gaps & Remediation Plan
- Schedule Next Reviews & Deliverables
- Customer Confirmation & Sign-off
- Next Steps, Owners & Timeline