Services

Legacy Modernization · Legacy Modernization · Assessment

System Assessment & Documentation

Understand the system manufacturing depends on before changing it.

Legacy applications often contain undocumented product, order, inventory, production, pricing, reporting, and integration logic. We recover the architecture, data flows, operating rules, dependencies, risks, and ownership required to make a responsible modernization decision.

Manufacturing employees reviewing operating systems and production information

A strong fit when

  • Original developers are retired or gone -- institutional knowledge walked out the door
  • Documentation is outdated, incomplete, or never existed in the first place
  • Business logic buried in legacy code, configuration, jobs, reports, and manual workarounds
  • Hidden integrations and file transfers that nobody remembers until they break during migration

Why this service exists

Connect the technology decision to the work the manufacturing business must control.

01

Business outcome

Use this capability when the framework reveals that an existing system, record, interface, or unsupported dependency is blocking the people and processes required to fulfill the customer promise.

02

System responsibility

Modernization preserves the required rules, records, interfaces, user workflows, and operating knowledge while systems are stabilized, connected, replaced, or retired in controlled stages.

03

Ownership and control

The manufacturer must retain the business logic, data history, validation evidence, support knowledge, transition decisions, and ability to change the replacement architecture.

01

The Problem

The business is planning replacement without a dependable model of what the current system does.

Modernization problems begin when a critical system is treated as old technology without first documenting the rules, records, interfaces, users, and operating knowledge the business still depends on.

01

What leaders see

Aging systems limit change and concentrate risk.

Support is difficult, integrations are fragile, and ordinary improvements depend on a shrinking group of people.

02

What is actually happening

The business logic is not fully understood.

Important rules, data, reports, workflows, and exceptions live in code, workarounds, and employee memory.

03

What gets worse

A rushed replacement threatens operating continuity.

The new system reaches testing before the team has proved what must be preserved or how each transition will be validated.

02

What changes

Make the operating responsibility visible and governable.

Legacy applications often contain undocumented product, order, inventory, production, pricing, reporting, and integration logic. We recover the architecture, data flows, operating rules,.

01

Operating outcome

Understand the system manufacturing depends on before changing it.

02

Knowledge and dependencies to preserve

business rules, critical records, interfaces

03

Decision and exception path

What must be preserved, what can change safely, and whether integration, staged replacement, parallel running, or a smaller intervention is the sound path.

04

Ownership and continuity

Modernization needs a verified account of what the current system does, who depends on it, how records move, what cannot fail, and how the business will validate each transition.

03

Architecture

Build the service around the business record and decision.

What must be preserved, what can change safely, and whether integration, staged replacement, parallel running, or a smaller intervention is the sound path.

01Source record
02Governed connection
03Validation
04Business system
05Accountable owner

Knowledge and dependencies to preserve

business rulescritical recordsinterfacesuser workflowssupport and recovery knowledge

04

Engineering scope

What Metrotechs engineers for System Assessment & Documentation.

The exact scope follows the approved business objective, source records, dependencies, controls, and delivery sequence.

01

Business Logic Extraction

Reverse-engineer business rules from running code -- pricing logic, order workflows, allocation rules, and approval chains. Document what the system actually does, not what someone thinks it does.

02

Data Model Documentation

Map the tables, fields, relationships, transformations, and data flows required by the assessment scope. Identify authoritative, transactional, reference, and derived records.

03

Integration Mapping

Discover and document in-scope file transfers, APIs, database links, email triggers, jobs, and manual handoffs. Record unverified or inaccessible dependencies as explicit migration risks.

04

Dependency Analysis

Identify upstream and downstream dependencies -- which systems feed data in, which systems consume data out, and what breaks if something changes.

05

Technical Debt Inventory

Catalog customizations, workarounds, dead code, and technical debt. Distinguish between logic that must be preserved and logic that can be retired.

06

Knowledge Base Delivery

Deliver a structured, searchable knowledge base with assigned owners and review points so the client team and approved partners can maintain it through modernization.

05

Delivery sequence

From operating reality to a solution the business can own.

01

Stakeholder Interviews

Interview power users, IT staff, and business process owners. Capture tribal knowledge before it disappears.

02

Code Analysis

Analyze source code, database schemas, and configuration files. Automated tools plus manual review for complex business logic.

03

Data Flow Tracing

Trace selected critical records from entry through transformation, storage, interfaces, and output, noting evidence, uncertainty, and accountable owners.

04

Integration Discovery

Scan for file transfers, scheduled jobs, API calls, and database connections. Verify each integration with source and target system owners.

05

Documentation Delivery

Compile findings into a structured knowledge base with business process maps, data dictionaries, integration catalogs, and risk assessments.

Related services and systems

Continue through the connected operating environment.

Use these connected services and references to understand the records, workflows, and systems surrounding this work.

01

Produce or Prepare

Coordinate production, WIP, quality, equipment readiness, changes, and the records behind completed work. This is the Supply Chain service context in which System Assessment & Documentation may be used as a delivery capability.

Explore next step

06

FAQ

Questions to answer before implementation begins.

Clear answers for manufacturing leaders evaluating the work, operating responsibility, and delivery path.

The schedule depends on source and environment access, code and data volume, customization, interfaces, job schedules, documentation quality, stakeholder availability, and the decisions the assessment must support. We scope it from those boundaries.