Published
half-sibling
vr.tr.half-sibling · thing-q27965041
Let an agent handle half-siblings as a family relation in genealogy, genetics and general legal context, without legal advice on individual inheritance or family matters.
Thing Registry Cross-cutting context XCT.REL
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Relation Which relation.
Side
Maternal or paternal.
Side
Shared parent.
- Which parent is shared? definition
- Is it a half-sibling or a step-sibling? boundary
Terms
Language.
Terms
Terminology.
- Which term does the family use? provenance
- How is it expressed in other languages? action
Genealogy Records.
Records
Family tree.
Records
Genealogical records.
- How should the relation be recorded in a family tree? action
- Which documents confirm it? provenance
Privacy
Living people.
Privacy
Privacy.
- Does the information concern living people who have not consented? boundary
- How should it be protected? action
Genetics DNA.
DNA
Shared DNA.
DNA
Shared DNA.
- How much DNA do half-siblings typically share? measurement
- Can tests distinguish half-siblings from other relatives? boundary
Support
Unexpected results.
Support
Support after surprises.
- Has a DNA test revealed an unexpected relative? boundary
- Which counselling or support services exist? provenance
Law Legal status.
Status
Inheritance.
Status
Legal status.
- How does the law here treat half-siblings in succession, in general terms? provenance
- Where is official information? provenance
Advice
Professionals.
Advice
Advice limit.
- Is the user asking about their own inheritance or family case? boundary
- How should they be referred to a lawyer? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.REL
- Other names and narrower kinds
- maternal half-sibling, elder maternal half-sibling, younger maternal half-sibling, maternal half-brother, maternal half-sister, paternal half-brother, paternal half-sister, elder half-sibling, younger half-sibling, elder half-sister, half-sister, half-brother
What it is Filled
A sibling who shares only one biological parent with another person, either the mother (maternal half-sibling) or the father (paternal half-sibling); a second-degree relative.
Why it exists Filled
Let an agent handle half-siblings as a family relation in genealogy, genetics and general legal context, without legal advice on individual inheritance or family matters.
Distinguishing features Filled
- One shared biological parent
- Second-degree relative
- Distinct from step-siblings
- Legal status varies
What robots and AI may and may not do Filled
Must not
- Disclose a newly discovered half-sibling or a parentage finding to anyone but the person tested.
- Interpret a DNA test result as proof of a family relationship.
- Contact a relative on someone's behalf without their informed agreement.
- Give legal advice on inheritance, support or parentage in a particular case.
- Use a family link to locate a person who has not asked to be found.
Only with a human decision
- Any contact with a newly identified relative.
- Any disclosure that reveals a parentage secret within a family.
May
- Explain what a half-sibling relationship is and the degree of relatedness in general terms.
- Point people to counselling and to registries that handle donor or adoption contact.
- Explain in general terms that family law differs by country on inheritance and support.
Moral aspects Filled
- Discovering a half-sibling can reveal infidelity, donor conception or adoption and upend a family.
- Both the person searching and the relative found have a right to decide about contact.
Who is affected
- The person who was tested
- Relatives who did not consent to being found
- Donor-conceived people
Owners Filled
Steward
The individuals themselves; civil registries hold the official record of parentage.
Master systems
- Civil birth and parentage registers
- Donor conception and adoption contact registers
Links to other meta-models Filled
parent
- Q108709310 - registry parent class
- Q24882651 - registry parent class
related
- biological sibling - category
- step-sibling and full sibling - relations
- family tree - genealogy
- inheritance - law
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.half-sibling
- Wikidata: Q27965041 (https://www.wikidata.org/wiki/Q27965041)
Direct properties not applicable Not applicable
- expected shared DNA: about 25 % - average
Plane XCT: no invented physical properties.
Recognition optional Filled
- One shared parent
- Maternal or paternal side
- Step-siblings share no biological parent
- Not physical; a relation between people.
Capabilities and actions required Filled
- describe the relation precisely
- record half-siblings in genealogy
- understand genetic relatedness
- find general information on legal status
Hazards and failure modes required Filled
- Revealing sensitive family information
- Agents giving legal advice
- Misreading DNA test results
Standards and interfaces required Filled
- Succession law on half-blood relatives
- GEDCOM genealogy standard
Context of use required Filled
- Describing family relationships.
- maternal half-siblings
- paternal half-siblings
- donor-conceived half-siblings
Sources Filled
- Wikidata item Q27965041: half-sibling - identity and sense of the item
- Wikipedia: Half-sibling - general description of the item
Open questions
- Should donor-conceived relations be a separate entry?
- How should genealogical records model it?
- How should privacy be protected?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q27965041/spec.json