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scadaproj/ZB.MOM.WW.Audit/README.md
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2026-06-01 07:19:36 -04:00

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# ZB.MOM.WW.Audit
Canonical audit event model, best-effort writer seam, and redactor seam for the **ZB.MOM.WW SCADA family** (OtOpcUa, MxAccessGateway, ScadaBridge). This is a **library, not a service** — it is linked directly into the consuming application at build time. Transport and storage remain per-project; only the shared record + seams live here.
---
## Packages
| Package | Description | Key Dependencies |
|---|---|---|
| `ZB.MOM.WW.Audit` | Canonical `AuditEvent` record, `AuditOutcome` enum, `IAuditWriter` + `IAuditRedactor` seams, shipped helpers (`NullAuditRedactor`, `TruncatingAuditRedactor`, `NoOpAuditWriter`, `CompositeAuditWriter`, `RedactingAuditWriter`), and `AddZbAudit` DI extension. | `Microsoft.Extensions.DependencyInjection.Abstractions` |
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## Consumer Matrix
| Consumer | ZB.MOM.WW.Audit |
|---|:---:|
| **OtOpcUa** | yes (adoption deferred) |
| **MxAccessGateway** | yes (adoption deferred) |
| **ScadaBridge** | yes (adoption deferred — "align, don't replace") |
Adoption is tracked in `components/audit/GAPS.md` in the outer `scadaproj` workspace. Each app brings its own transport (Akka broadcast / SQLite append / SQL ingest) and domain vocabulary (channels / kinds / event-types) — those stay per-project. The shared library provides the canonical record and the two seams that decouple "what to audit" from "how to store it".
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## Auth alignment
`AuditEvent.Actor` is a string today. At adoption time it SHOULD be set to the `ZB.MOM.WW.Auth` principal identifier — this is the "audit closes the loop on Auth" hinge described in the spec. No compile-time dependency on `ZB.MOM.WW.Auth` is introduced here; the alignment is by convention.
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## Versioning
The single package is versioned from `Directory.Build.props`. The current release is **0.1.0**. A single version bump in `Directory.Build.props` bumps the package.
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## Building and packing
```bash
# From ZB.MOM.WW.Audit/
dotnet build ZB.MOM.WW.Audit.slnx
dotnet test ZB.MOM.WW.Audit.slnx
# Produce the NuGet package into ./artifacts/
./build/pack.sh
```
---
## Design documentation
Full design docs live in the `components/audit` folder of the SCADA project workspace:
- `~/Desktop/scadaproj-audit/components/audit/spec/SPEC.md` — overall audit specification
- `~/Desktop/scadaproj-audit/components/audit/spec/EVENT-MODEL.md` — field-by-field event model + per-project mapping table
- `~/Desktop/scadaproj-audit/components/audit/shared-contract/ZB.MOM.WW.Audit.md` — public API contract (on paper)
- `~/Desktop/scadaproj-audit/components/audit/GAPS.md` — adoption backlog