01 · Managed IT and Cloud Operations
Legacy System Modernization
Old systems that still run the business, moved forward without stopping the business.
Managed IT and Cloud Operations
Legacy System Modernization
Old systems that still run the business, moved forward without stopping the business.
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- 1Assess honestly
- 2Choose the option
- 3Extract and reconcile
- 4Build in stages
- 5Cut over safely
What We Do for You
- Assess the legacy system honestly - what it does, what it costs, what it risks.
- Recommend replace, rebuild, wrap or retain.
- Extract and clean the data with reconciliation.
- Build the replacement in stages while the old system still runs.
- Cut over with parallel running and a way back.
How this is bought: Bought as an assessment first, then a project priced from what the assessment finds. Build an estimate for your case.
Our Approaches Explained
Modernization options
Replace with a product, rebuild bespoke, wrap with an interface, or retain and contain.
Strangler pattern
Replacing a system piece by piece while it keeps running, instead of a single risky switch.
Data extraction and reconciliation
Proving that what arrived matches what left, record by record.
Parallel running
Both systems live briefly, with outputs compared before the old one is retired.
Knowledge capture
Recording the undocumented business rules living in the old system before they are lost.
The Standards We Work To
Strangler fig migration patternData migration reconciliation practiceBusiness rule extraction
We follow the structure and controls these standards describe. We do not claim to be certified against them - where you need a formal certificate, we prepare the evidence and an accredited body performs the audit.
What You Get
- Legacy assessment and options
- Migration and cut-over plan
- Reconciled data migration
- Staged replacement
- Documented business rules
Business rules documented before cut-over94%
Migrations reconciled record by record100%
Cut-overs with parallel running90%
These are the areas clients most often ask us to improve. Your project sets its own targets, measured and agreed with you.