What leaders see
Packaged tools do not fit the required work.
Teams rely on workarounds because standard products cannot represent a critical workflow, rule, interface, or decision.
Services
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.
01
The Problem
The business is planning replacement without a dependable model of what the current system does.
Custom-software problems begin when the operation has a real capability gap but has not separated what should be configured, integrated, modernized, purchased, or deliberately owned in code.
What is actually happening
The durable requirement is not isolated.
Business rules, legacy dependencies, integration boundaries, user needs, and support ownership remain mixed together.
What gets worse
Every workaround becomes a software dependency.
Uncontrolled customizations accumulate without architecture, testing, documentation, or a maintainable change path.
02
What Changes
What System Assessment & Documentation includes.
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.
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 every table, field, relationship, and data flow. Identify master data, transactional data, and the transformations between them.
03
Integration Mapping
Discover and document every integration -- file transfers, API calls, database links, email triggers, and manual handoffs. Nothing gets missed during migration.
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 -- not a 500-page PDF. Living documentation that your team and vendors can reference throughout the modernization.
03
How It Fits Your Operations
How System Assessment & Documentation fits your operation.
Custom Software EngineeringWhat gap is worth owning in custom code, what can remain standard, and how the capability will be supported and changed.
Governance dependencyCustom software is warranted only when a documented manufacturing capability cannot be delivered cleanly through existing products, configuration, or a smaller integration.
Capability the operation requires
operating rules
system interfaces
user decisions
exceptions
support and change history
What must be defined before engineering begins
- What the business needs to change and why.
- Which systems, records, risks, and readiness gaps shape the work.
- What should be built, how it fits the architecture, and in what order.
Related Services and Planning
What the operating problem may require next.
Follow the dependencies behind this service instead of treating it as an isolated project.
01
Integration Engineering
Connect the new or modernized capability to the operating environment around it.
Explore next step02
Workflow and Exception Automation
Define the actions, approvals, exceptions, and ownership the software must support.
Explore next step03
Operational Analytics
Make adoption, operating performance, and exceptions measurable after delivery.
Explore next step04
Launchpad assessment and Roadmap
Use Launchpad when the operating problem needs a structured assessment, readiness evidence, architecture, and implementation Roadmap.
Explore next stepStart With the Operating Problem
Define the smallest sound response and delivery sequence.
Metrotechs determines what the operation actually requires before selecting technology. When a structured assessment is warranted, Launchpad turns evidence into priorities, risks, architecture, and an implementation Roadmap.
Metrotechs designs, builds, integrates, and supports the approved solution.
Launchpad is available when the engagement needs assessment evidence, a Roadmap, and ongoing delivery governance.
04
Delivery sequence
How Metrotechs delivers System Assessment & Documentation.
Legacy applications often contain undocumented product, order, inventory, production, pricing, reporting, and integration logic. We recover the architecture, data flows,.
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 data from entry point through every transformation to output. Map the complete lifecycle of critical business objects (orders, inventory, customers).
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.
05
FAQ
Questions that usually decide the scope.
Straight answers to what operators ask before committing budget to this work.
Typically 4-8 weeks depending on system complexity. An AS/400 with 20 years of customization takes longer than a 5-year-old packaged ERP. We scope the assessment based on the system and your modernization goals.