Joseph Doherty 9b2acfe699 Add OtOpcUa implementation corrections (2026-04-17) capturing mismatches between the otopcua-handoff and the v2 design work in lmxopcua/docs/v2/: 2 framing inaccuracies (native-OPC-UA-needs-no-driver, single-endpoint-per-cluster), 3 missing constraints (namespace ACLs not yet planned in the data path, schemas-repo dependencies blocking equipment-class templates, per-node ApplicationUri trust-pinning as a pre-cutover certificate-distribution step), 6 architectural decisions to revisit (driver list committed pre-survey, Tier A/B/C process-isolation model with Galaxy + FOCAS out-of-process, Polly v8+ resilience, 5-identifier equipment model with MachineCode/ZTag/SAPID alongside UUID, missing tier 1/2/3 consumer cutover plan, per-building cluster pattern interactions at Warsaw), 4 resolved TBDs (pilot class = FANUC CNC, schemas-repo format = JSON Schema, ACL location = central config DB co-located with topology, enterprise shortname still unresolved), and 4 new TBDs (UUID-generation authority, System Platform IO Aveva-pattern validation as Year 1/2 research, multi-cluster site addressing at Warsaw, cluster-endpoint mental model). Format follows the handoff's Sending-Corrections-Back protocol (what plan says / what was found / what plan should say). ...

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-17 09:54:36 -04:00

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otopcua-corrections-2026-04-17.md

Add OtOpcUa implementation corrections (2026-04-17) capturing mismatches between the otopcua-handoff and the v2 design work in lmxopcua/docs/v2/: 2 framing inaccuracies (native-OPC-UA-needs-no-driver, single-endpoint-per-cluster), 3 missing constraints (namespace ACLs not yet planned in the data path, schemas-repo dependencies blocking equipment-class templates, per-node ApplicationUri trust-pinning as a pre-cutover certificate-distribution step), 6 architectural decisions to revisit (driver list committed pre-survey, Tier A/B/C process-isolation model with Galaxy + FOCAS out-of-process, Polly v8+ resilience, 5-identifier equipment model with MachineCode/ZTag/SAPID alongside UUID, missing tier 1/2/3 consumer cutover plan, per-building cluster pattern interactions at Warsaw), 4 resolved TBDs (pilot class = FANUC CNC, schemas-repo format = JSON Schema, ACL location = central config DB co-located with topology, enterprise shortname still unresolved), and 4 new TBDs (UUID-generation authority, System Platform IO Aveva-pattern validation as Year 1/2 research, multi-cluster site addressing at Warsaw, cluster-endpoint mental model). Format follows the handoff's Sending-Corrections-Back protocol (what plan says / what was found / what plan should say).

2026-04-17 09:54:36 -04:00

otopcua-handoff.md

Add OtOpcUa implementation handoff document

2026-04-17 09:21:25 -04:00