Entity SEO
Entity Attribute Inheritance: Defaults, Overrides and Exceptions
Entity attribute inheritance defines which facts a child record can take from its parent, which need a local entry, and which must remain unset until evidence exists. A family relationship alone does not make every parent fact true of every version, plan, location or organizational unit.
Compare the inheritance rules
Choose the rule for each attribute
Apply inheritance to a named attribute within a defined hierarchy. Record the parent ID, child ID, relationship, attribute meaning and data type before deciding what can be copied. Product families, service plans, organization units, geographic records and page families can all use this method, but their hierarchies need separate rules.
| Rule | Behavior | Evidence or exception |
|---|---|---|
| Always shared | Use the approved parent entry for children within the declared scope. | Use only when the hierarchy guarantees that attribute. A conflicting child record requires review of the rule or relationship. |
| Default with override | Use the parent entry only when no valid local override applies. | A local entry needs a source, applicable scope and effective period. Keep the parent entry available for comparison. |
| Never inherited | Require separately supported facts for each child. | Version support dates, local opening hours or plan limits may need independent evidence. An empty field means unknown, not the family default. |
| Conditional | Inherit only when the stated condition holds. | Specify market, plan, category or other condition and check it for the child. A condition that has not been checked leaves the entry unresolved. |
| Computed | Calculate the result from declared inputs and a formula. | Record input versions, units and calculation logic. A calculated result is not a direct source statement. |
| Time bounded | Apply the rule only during its effective period. | Record start and end dates where known. A date change can affect both inherited entries and local exceptions. |
These labels describe your record policy. They do not replace source evidence. “Always shared” should be rare for facts that can vary by version, market or service commitment.
Resolve the hierarchy before copying facts
Keep family, variant, version, plan and locale distinct. A new product version can belong to the same family while having a different support commitment. A local branch can belong to an organization without sharing its address or operating hours. A brand is not automatically the manufacturer, and a person is not interchangeable with the company they founded.
Use accepted identifiers to establish the relationship. Similar labels, domains, appearance in the same paragraph or a shared category are insufficient by themselves. Record the predicate and direction, then check that both types can participate in that relationship.
For two or more parents, define precedence per attribute. A market policy and a policy for the product family can both be relevant; neither should win simply because it was processed last. If their scopes overlap and disagree, hold the affected attribute until the conflict is resolved.
A support date that must stay with the version
Illustrative scenario: the Atlas lamp family has shared category and manufacturer records. Version A has support ending in 2027, while version B has a separate documented commitment ending in 2029. A family page uses broad support language that was copied to both version pages.
| Attribute | Accepted treatment | Reason and downstream action |
|---|---|---|
| Family identity | Inherit the accepted family ID from Atlas to A and B. | Both versions have a verified family relationship; keep their version IDs distinct. |
| Category | Share the approved category within its scope. | Check that both versions fit the category before reusing the entry in filters or page summaries. |
| Support end date | Never inherit a support promise made for the whole family. Store 2027 for A and 2029 for B only with the matching version evidence. | Replace the copied dates in version pages, comparison tables and any related structured data candidates. |
| Regional availability | Hold until a market source is attached. | Neither the shared category nor the support documents establish availability in every country. |
The repair is not just changing two dates. Change the inheritance rule that caused the error, trace every dependent placement, and check for other versions carrying the same unsupported promise. Preserve the former entry and its source history so the correction can be explained.
Keep the entry, source and scope together
For each rule, retain the attribute name and meaning, parent and child IDs, source location, observation date, relevant market or version, and the reason for inheritance. If a field has units or an allowed vocabulary, store that definition as part of the attribute. “Support” can mean documentation access, security fixes or staffed assistance; those meanings cannot share one entry without qualification.
A child override needs its own entry, evidence and effective date. Identify the field owner and the reviewer who can resolve contradictions. Separate a source that explicitly states an exception from an editor’s inference about one. Keep unresolved uncertainty visible in the record.
Do not treat an empty child field as an instruction to clear a known fact or inherit one. Distinguish unknown, not applicable, deliberately absent and expired. Decide which state your system uses before propagation.
Trace a rule change through its dependents
- Map the affected childrenIdentify every family, variant, version, plan and locale that uses the rule. Include computed fields that depend on the inherited entry.
- Review exceptionsCompare current child evidence with the new parent rule. Keep supported local differences; do not erase them in a bulk update.
- Repair each placementCheck page copy, data tables, filters, briefs, graph records and structured data candidates for the old entry. Visible copy and machine readable assertions need the same supported scope.
- Accept or hold the resultAccept only when the relationship, rule, source, exception and effective period agree. Assign unresolved conflicts to a named reviewer and keep those entries out of downstream publication.
- Set the next reviewRecord the decision version, responsible owner and review date. New product releases, revised policies and changed local conditions should trigger earlier review.
A successful edit in one page is not evidence that every dependent record has changed. Track completion against the affected placements and recheck the entries after applying the rule.
Questions about shared and local facts
Can a local entry override an “always shared” rule?
A contradiction should trigger review. If the local source is valid, either the rule is too broad, the child is outside its scope, or the parent relationship is wrong. Silently accepting the override would leave the rule misleading.
What happens when an override expires?
Recheck the current rule and evidence. Return to the parent default only if the default still applies; expiry alone does not prove a replacement entry.
Does inheritance prove compatibility?
No. Shared identity, category or manufacturer does not establish that two versions work together. A compatibility assertion needs its own entities, direction, environment, conditions and evidence.
What should the final record contain?
Keep the relationship between parent and child, attribute definition, chosen rule, entry with its evidence, overrides, exceptions, effective dates, owner and review state. Leave unresolved dependencies explicit so a later editor does not turn them into facts.
Related decisions and sources
Predicate Cardinality Rules
Check how many relationships are permitted before modelling parents and children.
Entity Version Compatibility Matrix
Assess version fit separately from attribute inheritance.
Entity Identity Evidence Register
Resolve the records and source evidence used by the hierarchy.
Entity Predicate Library
Choose a relationship with a defined direction and type constraint.
Entity SEO
Return to related entity methods.
RDF 1.1 Concepts
Read the source reference for graph statements; this page’s inheritance policy is an editorial method, not a claim that RDF supplies these business rules.
The examples are teaching scenarios, not records of client work. The illustrations explain record separation and revision; they are not evidence of the assertions described. These editorial methods do not guarantee rankings, indexing, traffic, rich results, citations or AI feature inclusion.