Services · Data migration

Legacy data migration that the agency can prove.

Oversight of data conversion when an agency replaces an ERP, HRIS, or utility system. What moves, what archives, who owns each record, and how the agency proves the numbers match before go-live.

The engagement

Decide what moves before anyone moves it.

Data conversion is where implementations quietly slip. The integrator converts what it is told to convert. Avero helps the agency decide what that should be, then verifies that it happened. It sits inside implementation oversight or runs alongside data and AI strategy.

01

Data inventory

Every source system, file, and spreadsheet that holds records the new system needs, including the ones that live outside the old system.

02

Ownership

A named owner for each data domain who decides what is correct. The integrator cannot make that call for the agency.

03

Convert or archive

How much history moves, what stays read-only in an archive, and what retention rules and public records obligations require.

04

Cleansing

Duplicates, inactive vendors and employees, and broken codes cleaned before conversion, not after go-live.

05

Mapping review

Old fields mapped to new structures, including chart of accounts, position, and code changes, reviewed by the people who use the data.

06

Conversion rehearsals

Mock conversions with defects tracked to closure. Each rehearsal should be faster and cleaner than the last.

07

Reconciliation

Balances, counts, and sample records reconciled and signed off by the data owner before parallel testing starts.

08

Parallel testing

Where payroll or billing is involved, results run beside the current system and differences are explained before go-live.

09

Cutover and decommissioning

A cutover plan with a freeze window, a fallback, and a plan for retiring the legacy system and its access.

Independence

The firm maintains independence by refusing the relationships that create a conflict.

Avero holds no reseller agreements, no implementation partnerships, and no referral fees, and takes no compensation from a software vendor or systems integrator. Avero does not implement software. The only revenue is the agency's fee, so the findings are not shaped by who wins the next phase.

Someone in the room has to work only for the agency.
Questions

Straight answers.

Who should oversee data migration on a government ERP project?

The agency should own its data decisions, supported by an independent advisor who works only for the agency. The integrator performs the conversion; the oversight role verifies that the right data moved and that it reconciles.

How much historical data should a city or county convert?

It depends on reporting needs, retention schedules, and cost. Many agencies convert open items and a limited history and keep older records in a searchable archive. The decision should be made before the implementation contract is signed.

What is the difference between data migration and data archival?

Migration moves records into the new system so they can be used in daily work. Archival keeps older records read-only and accessible for audits and public records requests without loading them into the new system.

How do you prove converted data is correct?

With reconciliation: comparing balances, record counts, and samples between the old and new systems, signed off by the data owner, and with parallel runs for payroll or billing.

When should data migration planning start?

Before the RFP. Data volume, quality, and archival decisions affect scope and the implementation contract.

Does Avero perform the data conversion?

No. Avero does not implement software or perform the technical conversion. It plans, oversees, and verifies the work on the agency's behalf.

Does Avero help with data migration for utilities and HR systems?

Yes. Data conversion oversight is part of HRIS and HCM advisory and of utility system replacements as well as ERP.

Next step

Tell us where you are.

A sentence is enough. You will hear back within one working day. If we cannot help, we will say so.