Reverse Engineering
Analyzing and documenting existing applications automatically
What do we have – and what does it really do? We reconstruct the as-is specification of your existing systems agentically from source code and observed usage, with a documented source for every statement.
Understanding existing systems before they are changed
Knowledge about grown systems lives in people's heads and outdated documents, while experienced developers retire. Anyone who wants to modernize, replace or tender first needs a robust as-is specification. ReqPOOL reconstructs it systematically: from the source code – from SAP/ABAP and mainframe COBOL to Java – and from the actual usage of the application, even without any source-code access. Every statement is traceable to program and line or to screenshot and event log. The result: documentation of the system as it really is, a queryable knowledge graph and transformation recommendations per module – your foundation for modernization, tendering and agentic redevelopment following the principle „Own the Spec, not the Code“.
Source-referenced | Technology-independent | Days instead of months
- Complete and objective: The software is documented as it actually is – not as it was once specified
- Traceable instead of black box: Every statement backed by a source-code reference or screenshot, deterministic and reproducible
- Knowledge stays with you: Documentation, knowledge graph and assistant remain as working tools – independent of individual experts
- Sound decisions: Effort, dependencies and risk for continued operation, modernization or replacement based on facts
White box and black box: two paths to the as-is specification
SLIP reads source code and documentation and produces source-referenced system documentation with a knowledge graph and an agentic assistant. App2Spec observes how an application is used and derives screens, business rules and process flows from it. Both platforms are hosted in the EU, do not train on your data and are part of the consulting service.
- SLIP (Sysparency Legacy-Code Intelligence Platform): White-box analysis for SAP/ABAP, IBM mainframe (COBOL, PL/I, JCL), IBM i, NATURAL/ADABAS and open systems – documentation referenced down to program and line
- SLIP knowledge graph & assistant: Programs, data flows, interfaces and batches queryable – „What breaks if I change this?“ answered in seconds
- App2Spec: Black-box analysis from observed usage – screens, controls, data fields, derived business rules and end-to-end processes with evidence per statement
- App2Spec export: As-is specification online and as Word, PDF and Markdown – uniformly structured and comparable across applications
Tools in this service
Understand applications
Observes an application in use and compiles an evidence-linked AS-IS specification with processes and business rules.
Understand legacy code
Sysparency Legacy-Code Intelligence Platform: reads any source code into source-proven documentation and a knowledge graph.
Observe, analyze, specify
At ReqPOOL, reverse engineering follows an evidence-based sequence: agents capture code and usage, transfer them into standardized entities of a knowledge graph and compile the as-is specification from it. Our experts validate where business truth matters and derive the transformation recommendation. Hours instead of months for documentation and reverse engineering of legacy applications – every statement source-referenced.
Capture
Reading in source code, or operating and observing the application agentically.
Analyze
Transferring code, screens and events into the knowledge graph, uncovering dependencies.
Specify & recommend
Publishing the as-is specification, deriving a transformation recommendation per module.
Successful companies trust us
Selected projects show how we translate strategic goals into concrete, measurable results.
and these further clients
Get in touch
Arrange a no-obligation initial conversation with our contact person.
Christian Buchegger
Chief Sales Officer & Authorised Signatory
