Datatype properties

Every node can carry typed literal values. These properties are the scalar side of the graph — names, hashes, timestamps, percentiles, string enums, booleans.

Anatomy of an evidence node — what you see when you open one.

The diagram above shows how these properties compose on a single evidence node. The tables below enumerate every property by the domain it belongs to.

Document metadata

Attached to every atlas:Document when Atlas ingests it.

Property	Datatype	Meaning
atlas:sourceURL	xsd:anyURI	Canonical URL the document was fetched from.
atlas:contentHash	xsd:string	SHA-256 of the document body at fetch time. Changes ⇒ re-score.
atlas:fetchedAt	xsd:dateTime	When the document was last ingested.
atlas:loio	xsd:string	SAP Help object ID — stable across deliverables.
atlas:topicType	xsd:string	DITA topic class: Concept / Task / Reference / API / Unknown.
atlas:apiState	xsd:string	On atlas:APITopic: #RELEASED / #DEPRECATED / #NOT_RELEASED. Verbatim from the DITA prolog.

Artifact name

Property	Domain	Datatype	Meaning
atlas:artifactName	atlas:SAPArtifact	xsd:string	The SAP-native identifier — VBAK, BAPI_PO_CREATE1, I_Customer.

Guidance properties

Property	Domain	Datatype	Meaning
atlas:priority	atlas:Guidance	xsd:string	Severity / priority tag (critical, recommended, informational).

Plan properties

Property	Domain	Datatype	Meaning
atlas:stepOrder	atlas:PlanStep	xsd:integer	Deterministic order inside the plan graph.

Case properties

Property	Domain	Datatype	Meaning
atlas:caseIdentifier	(any case-like)	xsd:string	External case ID your team recognizes.
atlas:caseTitle	atlas:EngineeringCase	xsd:string	Human-readable title.
atlas:sourceSystem	atlas:EngineeringCase	xsd:string	The system being migrated from.
atlas:targetSystem	atlas:EngineeringCase	xsd:string	The system being migrated to.

Bundle properties

Property	Domain	Datatype	Meaning
atlas:bundlePattern	atlas:BundleArtifact	xsd:string	The modernization pattern applied (side-by-side, key-user, rap-extension, clean-rewrite).
atlas:filePath	atlas:BundleArtifact	xsd:string	Relative path within the bundle archive.

Estimate properties

Property	Domain	Datatype	Meaning
atlas:p50Hours	atlas:EstimateSnapshot	xsd:decimal	Median effort forecast.
atlas:p80Hours	atlas:EstimateSnapshot	xsd:decimal	80th-percentile forecast — the number most teams plan to.
atlas:p90Hours	atlas:EstimateSnapshot	xsd:decimal	90th-percentile forecast — the number to include in risk budgets.
atlas:impactHours	atlas:EstimateFactor	xsd:decimal	The hours a single factor adds to (or subtracts from) the P50.
atlas:evidenceLink	atlas:EstimateFactor	xsd:anyURI	The URL the factor was derived from (often a prior DeliveryOutcome).
atlas:completedAt	atlas:DeliveryOutcome	xsd:dateTime	When the observed outcome finished.

Risk signal properties

Property	Domain	Datatype	Meaning
atlas:riskCategory	atlas:RiskSignal	xsd:string	Category enum — clean-core, release-gap, legal, performance, auth.
atlas:severity	atlas:RiskSignal	xsd:string	blocker / major / minor / informational.

SAP source-intelligence properties (sap: prefix)

The scalar side of the detailed CDS sub-graph.

Property	Domain	Datatype	Meaning
sap:hasReleaseState	sap:ReleaseContract	xsd:string	C0 / C1 / C2 — the verbatim stability contract.
sap:hasVDMViewType	sap:CDSView	xsd:string	#BASIC / #COMPOSITE / #CONSUMPTION.
sap:hasDataCategory	sap:CDSView	xsd:string	#CUBE / #DIMENSION / #FACT / #AGGREGATIONLEVEL.
sap:fieldRole	sap:CDSField	xsd:string	key / measure / currency / unit / dimension / text.
sap:availableInTenant	(any)	xsd:boolean	True when a tenant observation has confirmed the node exists.
sap:sourceKind	(any)	xsd:string	catalog / api-sap-com / extract / inferred. Drives the evidence tier.
sap:extractorVersion	(any)	xsd:string	Version of the extractor that produced the fact.
sap:evidenceHash	(any)	xsd:string	SHA of the fact’s provenance chain — stable identity for re-scoring.
sap:tenantConfirmed	(any)	xsd:boolean	Confirmed by first-party extract. Promotes evidence tier.
sap:validFromRelease	(any)	xsd:string	First release where the fact is true (e.g. 2023).
sap:validToRelease	(any)	xsd:string	Last release where the fact is true — missing means “open-ended”.