Buying custom software

    Rollout, adoption and handover: making sure the old sheet really retires

    Adoption fails when the new system is one more screen on top of old habits. Design for the daily tasks, set a retirement date and hand over everything in writing.

    GC
    GarunaCDX Editorial
    Editorial team
    Oct 19, 2026 2 min read
    Key takeaways
    • Design from five daily tasks per role.
    • A fact entered once removes the reason to keep a private sheet.
    • Set a retirement date for the old record.
    • Hand over accounts in your name from day one.
    • We have not measured adoption on any build.

    Quick answer

    People use a system when it lightens their day. Write down the five daily tasks per role, show each role only its own screens, enter each fact once, test on a busy day and set a date when the old sheet stops being the record. Then hand over accounts, code, secrets and a tested restore, with maintenance in its own document.

    Adoption in five moves

    1. Watch three people work. Write down each role’s five most frequent tasks.
    2. Show each role only those tasks.
    3. Make each fact get entered once.
    4. Test with real users on a busy day.
    5. Set a retirement date for the old record, and a champion per role.

    On our clinic-queue platform each role sees only its own work. Reception has one login and a tab per doctor. Check-in and emergency walk-ins belong to reception. Doctors start and end their own consultation, and calling a patient in never changes the queue. An emergency walk-in goes in right after the consultation in progress and the rest renumbers. Alerts go out only when a position moves meaningfully. This is design intent. We have no real front-desk usage yet, so we have not measured adoption. Detail: will my team actually use the new system.

    Handover in one list

    Accounts and domains in your name, code in your organisation, environments and release steps, a list of secrets and who holds them, a tested restore, documentation, alerts, third-party services with renewal dates, a shadow period, and an exit plan. For a marketplace client we produced a full handover checklist and scoped a monthly retainer with explicit limits. Their details are under an NDA. Keep maintenance and new development in separate documents. Checklists: handover and maintenance.

    Where this doesn't apply

    Role-based screens are overkill for three people doing the same job, and no design fixes a process that was already broken. Fix the definitions first.

    Next chapter: Tech and go-to-market together.

    Rollout check
    Tell us the five tasks each role does daily. We'll show where the double entry hides.
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    GarunaCDX Editorial
    Editorial team

    Engineers, product and growth folks at GarunaCDX writing about the systems we build for clients.

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    FAQ

    Frequently asked questions

    Usually because the sheet is faster for the task they do all day. If the new system asks for more clicks or double entry, the old habit wins.

    Run old and new in parallel for a short, fixed period, move one workflow at a time, name one champion per role and fix the date the old record stops being used.

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