16 chapters
Current-system documentation
Read the capabilities, journeys, business rules, data, integrations, security findings and open questions.
Read the documentation →Informix 4GL · Java · Application documentation
Understand the customer, order and reporting behaviour in an Informix 4GL application.
Harten’s Wayfinder documentation examines an order-management application with retained Informix 4GL programs and a Java desktop implementation. It identifies the behaviour supported by each source, the differences between them and the questions that require runtime verification.
Explore the documentation
9 galleries
Diagrams and evidence gaps
Explore 57 individual views containing 44 diagrams. Views without a diagram explain the missing evidence.
Explore the diagram galleries →65 topics
Supporting detail
Follow the chapter links into individual capabilities, records, requirements and review questions.
Browse capability detail →Findings you can inspect
Order maintenance differs between the implementations
The Java order-update and order-delete handlers report that the options are unimplemented. A separate 4GL order program contains Modify and Delete paths. The documentation keeps those behaviours associated with their respective sources. Read the capability map.
Customer deletion has an unresolved business rule
The Java deletion check counts orders for the customer, while the displayed message refers to “active orders”. The source does not show a filter that limits the check to active orders. Read the business-rule analysis.
Visible transaction handling still leaves recovery questions
Order entry includes commit and rollback branches. Recovery through the broader exception handler also depends on framework behaviour that the supplied source does not establish. Read the order-entry journey.
Publication scope and source
This edition renders the retained documentation export dated 17 October 2026, including its linked gallery and topic pages. It contains no specification or modernisation-plan publication. The source repository is an upstream reference; the exact revision analysed by this export is unbound.
The documents retain reported findings, explicitly marked inference and unresolved questions. They do not establish a completed migration, production deployment or equivalent behaviour across the 4GL and Java implementations. Read the retained scope and confidence note.
Harten documentation of the Informix 4GL and Java source repository, from the retained 17 October 2026 export. The exact upstream revision analysed is not established. Source findings do not establish runtime behaviour or equivalence between the implementations.
Evidence identifiers are retained for traceability. The underlying analysis records are not included in this public edition; credential values are redacted. About this case study.