Modernize legacy platforms through staged migration.

We review the current system, define the target architecture, plan migration stages and support cutover and stabilization within an agreed scope.

Illustration of the work: map the legacy core, separate code, data, integrations and runtime, then verify each new boundary before cutover.

What Bayna Studio delivers.

The engagement covers the current system, the target design, the migration sequence and the controlled switch to an accepted platform state.

4

system areas reviewed

Code, data, integrations and operations are mapped as one working platform.

3

migration states controlled

The current, parallel and cutover states each have named checks and owners.

6

documents handed over

System map, dependencies, target decision, sequence, cutover record and accepted state.

5

cutover controls recorded

Scope, owner, acceptance checks, stop condition and rollback procedure.

We map code, data,
integrations and operations.

The review connects components, data paths, interfaces, deployment environments and responsible owners so the migration plan matches the system that actually runs.

LEGACYCORE CODE DATA LINKS OPS INTERFACE STORAGE SERVICES RUNTIME
Code relationships

Identify coupling, ownership and the components that cannot be moved independently.

What we inspect before recommending a migration.

Technology follows the migration requirements. We inspect the existing platform, then compare compatibility, support lifetime, security, operational fit, team capability and total ownership cost.

See the technologies we use

Repositories and deployment records

Source structure, build files, scheduled jobs and release history show which components change and deploy together.

Used for the component inventory

Schemas and data flows

Stores, transformations, read and write paths, retention rules and ownership show what must remain consistent.

Used for the data dependency map

Interfaces and integration schedules

API specifications, file transfers, protocols, schedules and failure behavior show where systems depend on each other.

Used for the integration register

Environment, incident and owner records

Runtime configuration, deployment history, incidents, change windows and owner input define the operating limits.

Used for cutover and rollback planning

How we move the platform.

We document the current system, select a target boundary, split the work into migration increments and verify each state before the next switch.

See the migration stages

Inventory the current platform

Record components, data movement, integrations, environments, constraints and responsible owners.

Output: current-state system map

Design the target architecture

Decide what stays, what separates, what becomes compatible and what must be replaced.

Output: target decision and increments

Migrate and verify in stages

Implement each increment, run the agreed checks, control cutover and document the accepted state.

Output: cutover and handoff record

Documents your technical team receives.

Each stage produces a working record that another engineer or decision owner can review and continue from.

Current state

System view

Components, data movement, integrations, infrastructure and known operating constraints.

Coupling

Dependency register

Relationships that determine what can move independently and what must remain compatible.

Target state

Architecture decision

The selected boundary, alternatives considered, technical reason and responsible decision owner.

Transition

Migration sequence

Defined increments, prerequisites, checks and the condition for moving to the next state.

Control

Cutover and rollback record

The switch window, acceptance checks, stop condition and route back to a known state.

Handoff

Accepted platform state

What changed, what remains, who owns the state and what the next decision depends on.

How we verify the result.

Before work starts, the client and Bayna Studio record the baseline, target, measurement window and evidence source. The same fields are checked after acceptance.

MeasureBeforeAfterEvidence

Run cost

Hosting, licences and recorded support effort

Stable cost after the agreed stage

Invoices, contracts, support records

Release friction

Lead time and deployment frequency

The same measures after acceptance

Delivery and deployment records

Recovery

Incident and rollback time

Observed recovery to an agreed state

Incident timeline, acceptance checks

Cutover exposure

Planned interruption and rollback condition

The observed event and final state

Cutover log, signed acceptance

What clients ask before a system review.

The exact answer depends on the platform, but the service boundary is clear before technical access begins.

Does modernization mean replacing the whole system?

No. We compare staged extraction, compatibility work, parallel operation, partial replacement and a full rewrite against the dependency map.

Can the current platform stay in operation?

The review identifies what must remain live, the available change window and the rollback condition. Those facts determine whether parallel operation is possible.

What is needed before technical access?

Define the platform area in scope, the known operating constraint, the decision owners and the acceptance criteria. Access remains limited to the written scope.

Does Bayna Studio implement the migration?

Implementation and stabilization can be included in the agreed scope. Indefinite operations and managed support are separate responsibilities and are not assumed.

How are savings or improvements reported?

We compare the recorded baseline with the accepted state over an agreed measurement window. Results are published only when the supporting records and client approval are available.

Who supplies what during the engagement.

Bayna Studio delivers

The system review, dependency register, target architecture, migration sequence and agreed implementation, cutover and handoff work.

Your organization provides

Scoped access, existing technical records, operating constraints, responsible owners and acceptance criteria for each stage.

Tell us what runs now, what must change and what cannot stop.

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