payments-engineering-sample/

Sample Layered Architecture + EARS Project

This sample demonstrates the new layered architecture direction where authored design is stable and runtime/code realization is inferred.

Authored architecture centers on:

• Functional Groups (FG-*)
• Functional Units (FU-*)
• Actors
• Attack Vectors
• Referenced Elements

Inferred layers are represented by example ownership and runtime hints:

• Runtime inferred from infra/terraform, infra/flux, infra/helm
• Code ownership inferred from package/module-level owner annotations in src/
• Fine-grained requirement traces from TRLC-LINKS markers in code
• Verification mappings and outcomes inferred from tests/ and test-results/ artifacts

The implementation files are intentionally dummy but believable:

• they include trace markers for requirement linkage
• they include coarse ownership markers for FU mapping
• they log/print expected actions in each subsystem
• they are meant for documentation and traceability, not production execution

Story highlights:

• checkout and authorization are authored in FG-PAYMENTS
• risk scoring and support review are authored in FG-FRAUD
• cluster provisioning and GitOps operations are authored in FG-PLATFORM
• Flux/Terraform artifacts annotate ownership upward with engmodel.dev/owner-unit

Files

• engmod.yml
• model/catalog.yml
• model/requirements.yml
• model/architecture.yml
• model/behavior.yml
• model/assurance.yml
• model/compliance.yml
• model/views.yml
• model/decisions.yml
• infra/terraform/main.tf
• infra/flux/...
• infra/helm/...
• src/...
• tests/... (sample e2e/integration/contract verification fixtures)
• tests/unit/... (sample code-level unit verification fixtures)
• test-results/... (sample run artifacts mapped to requirements)

Note:

• This example is intentionally synthetic and focuses on documentation/traceability behavior.
• Verification artifacts are sample fixtures intended to demonstrate requirement-to-test-to-result mapping.

Upstream References

These are known working upstream projects/docs for the same stack:

• Terraform AWS EKS module: https://github.com/terraform-aws-modules/terraform-aws-eks
• Flux bootstrap and GitOps toolkit docs: https://fluxcd.io/flux/
• Flux HelmRelease API docs: https://fluxcd.io/flux/components/helm/helmreleases/
• Helm chart docs: https://helm.sh/docs/topics/charts/