Investigate failures in OCCT-based software
OCCT bug-fixing services investigate Boolean and fillet failures, STEP translation errors, crashes and slow CAD operations. CAD debugging requires both the application context and the geometry that triggers a failure. A crash, incorrect Boolean result, failed import or slow operation may involve source data, API usage, configuration or an implementation defect.
The first step is to reproduce the observed behavior and distinguish the expected result from the current result. Corrections can then be scoped against concrete acceptance checks.
What to include in a technical report
Provide the OCCT release, target platform, operation or API sequence, relevant parameters and the smallest representative input that still shows the problem. Include logs, exception details or timing measurements when available, and explain the output you expect. Use a shareable or sanitized reproducer; agree on a secure transfer method before sending confidential files.
For a performance issue, record hardware, build configuration, workload and repeated measurements. Separate improvements in throughput from changes in output quality or tolerance.
Separate the failure from its visible symptom
A failed export may begin with invalid geometry produced earlier in the pipeline. A slow viewer may spend most of its time preparing tessellation rather than drawing it. A Boolean-operation issue may depend on the input topology, model tolerances or a particular operation configuration.
A useful investigation narrows the sequence until the triggering condition can be reproduced. For performance work, separate parsing, document construction, geometry processing, meshing and rendering. This gives a proposed fix a measurable target and avoids moving the cost to another stage unnoticed.
A correction handover can be scoped to include the reproducer, implementation change, relevant regression cases and any configuration or version constraints. Agree which of these artifacts are required for your release process.
Request tracking and correction delivery
After the scenario and input data are sufficient to reproduce a defect or define an improvement, the request can be registered with a tracking identifier. That identifier connects the investigation, progress discussions and the eventual correction or release information.
A correction scope includes more than editing the failing code. It can include a regression case, portability changes, non-regression checks for the agreed platforms, documentation updates and prebuilt binaries where required. Delivery can provide modified source files and the agreed binaries so the customer can integrate the correction into its build.
The applicable release notes and request identifier provide traceability when the change enters an OCCT release. Target releases, backports and binary platforms should be agreed for the request. Compare the support-unit program for commissioning this work; an estimate and agreement precede implementation.
Corrections and regression checks
Agree on the affected versions and application behavior before implementation. Validation should cover the reproducer and representative neighboring cases, including shape validity or exchange output where relevant. Migration work should also account for API and behavioral changes between releases.
For a broader design problem, start with OCCT consulting. For ongoing investigation capacity, compare commercial support packages.
Describe a CAD failure or performance issue to discuss investigation and correction scope.