Resources

Practical artifacts from production engagements.

Whitepapers, reference architectures, maturity-assessment worksheets, RFP-response templates. Free to download. We'll add new resources monthly as engagements produce them. Email info@core923group.com if there's a specific artifact you're looking for.

WhitepaperHealthcare

HIPAA + HITRUST Engineering Checklist

A 47-item engineering checklist for healthcare platforms preparing for HITRUST CSF certification. Code-level controls, infrastructure controls, audit-evidence requirements. Used in three successful certifications.

Request →
Maturity AssessmentDevOps

Platform Engineering Maturity Self-Assessment

A 32-question self-assessment for platform-engineering teams. Maps your current state across observability, deployment, IaC, security posture, and operational discipline. Generates a prioritized improvement plan.

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Reference ArchitectureAI

Production RAG Reference Architecture

A reference architecture for production-grade Retrieval-Augmented Generation systems — vector store selection, embedding pipeline, eval harness, hallucination defenses, cost controls. Includes Mermaid diagrams and tradeoff matrix.

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WhitepaperComing soon

PCI DSS 4.0 Scope-Reduction Playbook

The tokenization-at-the-edge playbook for shrinking your Cardholder Data Environment from "everywhere" to "four services." Engineering patterns, evidence collection automation, audit prep templates.

Available next month
TemplateComing soon

Multi-Team Program Operating Cadence Template

The cadence we install on every multi-team enterprise program — PI planning agenda, dependency-map template, weekly executive review template, standup-of-standups format. Battle-tested at telecom and healthcare scale.

Available next month
ReferenceComing soon

Event-Sourced Ledger Reference Implementation

A working reference implementation of an audit-grade event-sourced ledger in .NET 9. Snapshot strategy, projection patterns, event versioning, replay tooling. Designed for finance regulatory environments.

Available next month

Don't see what you need?

Email info@core923group.com with the subject "Resource Request" and tell us what you're looking for. If it's something we have, we'll send it. If it's something we should build, we'll add it to the queue.

Resources are free. Conversations are too.

30-minute call. Senior architect on the line.