To assign ABA master data and source-of-truth ownership, list each shared domain, define the authoritative source for each field and date, name who may approve changes, and document how updates propagate, fail, reconcile, and correct history. Separate legal identity, preferred name, payer identity, provider enrollment, location, service, role, code, and configuration records. Test conflicts rather than declaring one entire application the source for everything.

Define Rhea's master-data ownership and propagation matrix

Rhea assigns authority at the data-element level. The EHR may own a preferred name while a payer file controls the claim name for a product and date. A credentialing system may store a provider location while the payer roster controls participation. One system can be authoritative for a field and only a consumer for another.

Build a decision-ready record

The master-data ownership and propagation matrix records domain, element, definition, person or entity, authoritative source, effective date, other sources, owner, approver, change trigger, validation source, identifier, match rule, propagation route, latency target, conflict rule, manual override, history, correction, downstream notification, reconciliation, failure queue, access, retention, and review. Structured fields support routing, comparison, alerts, expiry, and validation. Narrative preserves workflow context, person and family experience, clinical and operational impact, uncertainty, disagreements, source limits, failed tests, and why the accountable owner approved, restricted, repaired, deferred, or rejected the item.

Run the operating workflow

Rhea starts with costly conflicts in client, provider, payer, authorization, service, code, site, schedule, and workforce data. Owners identify authoritative evidence, map downstream consumers, and define effective-date behavior. A controlled change is traced through every recipient. Unmatched, stale, duplicate, and rejected updates remain in an exception queue until resolved.

Keep authority and technical capability separate

A source-of-truth label cannot make inaccurate data true or replace an external authority. Payers control their coverage and roster states; licensing boards control their records; qualified clinicians own clinical decisions; the practice owns its internal configuration. The matrix records those boundaries and the evidence date.

Protect care, communication, and required records

Rhea maps any effect on client safety, health information, clinical work, communication and AAC, access, records, authorizations, claims, payroll, and family contact. Technical work proceeds beside emergency and incident duties. A qualified clinician decides whether care can proceed after a material technology failure; other accountable owners decide within their domains.

Keep failures and unknowns in view

Rhea records every failed or skipped test, unknown asset or flow, workaround, vendor case, dependency, owner, due date, escalation, retest, and expiry. Conditional approval states the exact scope, safeguard, restriction, evidence, and stop condition. Open work stays in the locked denominator.

Work through a fictional practice example

Rhea locks 25 fictional master-data domains. Eighteen have field definitions, authoritative sources, owners, effective dates, propagation, conflict, and correction rules. One provider location has three competing sources, one payer name overwrites a preferred name, one code table lacks versioning, one role update skips scheduling, and three domains lack owners. Five repair; two stay blocked. This synthetic scenario tests workflow and denominator logic. It establishes no clinical, privacy, security, legal, accessibility, payer, employment, contract, or product conclusion for a real practice or person.

Measure the locked cohort

Rhea's initial readiness is 18 of 25, or 72%. Report all 25 master-data domains due, the review date, unresolved reasons, and age of open work. Data sets, records, fields, flows, users, systems, events, tests, findings, and remediation attempts retain separate denominators.

Test the hard failure modes

Rhea tests preferred-name change, legal-name change, address move, payer reassignment, provider roster date, license change, service-code version, site closure, role transfer, duplicate person, manual override, and correction propagation. Each case preserves the system and version, starting state, data, user or process, expected control, observed result, evidence, defect, owner, retest, and disposition. Passage applies only to the named configuration and conditions.

Address the main operating risk

Calling one application the system of record for every field can overwrite meaningful distinctions, hide external authority, and spread a wrong value consistently across the practice.

Require independent acceptance

Rhea gives an independent reviewer the locked scope, source map, configuration, raw evidence, tests, failures, approvals, monitoring, remediation, and closure proof. The reviewer reproduces one ordinary case and one failure. A changed cohort, missing record, hidden manual repair, or result dependent on an undocumented step fails acceptance.

Anchor the workflow in current healthcare duties

Rhea uses the CASP public organizational overview only for high-level business, clinical-operations, and risk context. HHS risk-analysis guidance covers all ePHI a regulated entity creates, receives, maintains, or transmits. The current Security Rule page still labels the January 2025 cybersecurity update proposed, so operative requirements and future readiness ideas stay separate.

Distinguish binding duties from voluntary frameworks

Current 45 CFR 164.308 supplies administrative-safeguard duties and 45 CFR 164.312 supplies technical-safeguard duties. The HHS Healthcare Cybersecurity Performance Goals are voluntary healthcare priorities, and NIST CSF 2.0 is a voluntary outcome framework. Rhea cites the exact source for each control rather than converting guidance into a general legal requirement.

Apply the page-specific sources within their scope

Rhea's additional sources are National Institute of Standards and Technology, SP 800-18 Rev. 2 System Plans, National Institute of Standards and Technology, SP 800-53 Rev. 5 Security and Privacy Controls, National Institute of Standards and Technology, Privacy Framework Version 1.0, U.S. Department of Health and Human Services, Business Associates, U.S. Department of Health and Human Services, Guidance on HIPAA and Cloud Computing. They support the page's data, software, privacy, vendor, record, or technical boundaries. NIST federal-system guidance can inform a private practice, while current HHS regulations and applicable law, contracts, professional duties, and deployed facts control their own domains.

Resolve a conflict without overwriting the evidence

When two systems disagree, Rhea first identifies what each field means, when it was effective, who entered it, and which business event each system is authorized to record. The designated source of truth governs only the named data element and context; an EHR may own a clinical attribute while credentialing, payroll, scheduling, or payer systems own different facts. The correction record preserves the original value, supporting evidence, decision maker, effective date, reason, and downstream systems that must reconcile. Automated propagation pauses when authority or identity is uncertain. After correction, the owner confirms every expected consumer, report, integration, cache, and export received the intended value and that rejected updates are visible. Repeated conflicts trigger a process or interface investigation rather than routine manual overwrites, which can erase the evidence needed to find the underlying ownership or timing defect.

Maintain the control after release

Rhea assigns a review cadence and triggers for systems, data, versions, configurations, users, vendors, subprocessors, workflows, integrations, incidents, law, contracts, and ownership. Urgent response proceeds immediately. This page remains draft until the named technology, privacy, security, clinical, accessibility, records, and legal reviewers complete their work.

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