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Data Migration · St Davids

Data Migration in St Davids

Moving a St Davids organisation's data from an old system into a new one. Migration is where system replacements fail, and almost always for the same reason: the old data is messier than anyone believed, and nobody found out until the week the new system was meant to go live.

Why this comes up

The problem

A new system is being implemented and the migration is a line on the plan with no detail. Nobody has looked at the old data closely enough to know what state it is in.

What you get

What we deliver

  • Source data profiled early, so the real state is known while there is time to act
  • Mapping documented field by field, including what has no destination
  • Cleansing and deduplication decisions made explicitly rather than by whoever runs the script
  • Trial migrations run repeatedly, since the first one is never right
  • Reconciliation proving what moved — counts and values matched, not assumed
  • A rollback plan, because cutover is the point of no return without one

Want this scoped for your business in St Davids?

Thirty minutes, no charge, no sales script. You leave with a written summary of what data migration would actually involve — whether or not you use us.

Book a 30-minute call

Working in St Davids

Wales

St Davids is the smallest city in Britain, with a commercial base of a few dozen tourism and hospitality businesses serving coastal visitors, and we will say plainly that most services on this site are larger than the local market needs.

Simple booking and payment systems for very small hospitality and tourism operators on the Pembrokeshire coast.

Sectors we work with in St Davids

  • Tourism & Heritage
  • Hospitality
  • Agriculture
  • Marine
  • Retail

What we work with

Technologies and platforms

  • Python
  • SQL
  • PostgreSQL
  • Azure Data Factory
  • dbt

Who we work with

Industries we serve

  • Financial services
  • Healthcare
  • Manufacturing
  • Retail
  • Professional services

Why us

Why St Davids businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Data Migration in St Davids — common questions

Why do migrations go wrong so often?
Because data quality is discovered late. Duplicate customers, dates in three formats, notes fields holding structured information — none of it is visible from a schema. Profiling the actual data early is the single highest-value step in the whole project.
Should we migrate everything?
Usually not. Old records nobody has opened in five years cost effort to map and clean, and often carry data protection obligations. Archiving rather than migrating is frequently the better answer, provided the archive stays accessible.
How many trial runs are needed?
More than one, always. The first reveals problems, the second reveals the problems your fixes introduced, and the last should be a rehearsal that runs clean against a full copy — timed, so cutover duration is known rather than hoped for.
How do we prove the migration worked?
Reconciliation before anyone signs off: record counts, financial totals and sampled records compared between systems. Without it, discrepancies surface weeks later when the old system has been decommissioned and the evidence is gone.
Do you work with businesses across Pembrokeshire?
Yes. We are based in Leicester, United Kingdom and work with clients throughout Wales, including St Davids and the surrounding Pembrokeshire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of St Davids businesses do you usually work with?
Simple booking and payment systems for very small hospitality and tourism operators on the Pembrokeshire coast. Beyond that we work across Tourism & Heritage, Hospitality, Agriculture, Marine and Retail.
Do you cover the areas around St Davids?
Yes — we work throughout Wales, including Swansea, Cardiff. St Davids is an urban area of roughly 1,600+, and we take on work across the wider Pembrokeshire region rather than the city boundary alone.

Talk to us about Data Migration in St Davids

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom