("Source Text for Event and Ménage MApping”) is the data model and source format I was already working on when I first joined BetterGEDCOM. A draft copy of the specification was uploaded around January 2012 at www.parallaxview.co//familyhistorydata.
I've finally got around to collecting together my STEMMA research notes
and making them almost readable. The 70+ pages have now been upload to the STEMMA site as a resource for any similar work on family history data to utilise. They cover a wealth of topics, as may be seen from the main page, and include references to other material as well as independent observations and viewpoints. All feedback is welcome but constructive feedback is more than welcome :-)
has just undergone a major revision. It has now passed from being a draft specification to the first fully working version.
A number of its features have been streamlined or revised as a result of it being applied to my own data, and following further research. The copious associated research notes
have been updated in keeping with the new specification. Those prior pages are now supplemented by a Data Model
section that shows the model being applied to a number of case studies. A PDF copy of the same material is attached below.
New or improved features include:-
- Rationalised way of extending partially controlled vocabularies in order to support custom types, subtypes, roles, styles, and other tag values.
- Unified approach to defining core and custom properties for Persons and Places.
- Streamlined handling of multi-valued properties (and of Citation/Resource parameters) such as 'Roles'.
- Support for local-events (i.e. that only affect one person).
- Support for Events with multiple sources of information, i.e. multiple sets of properties for each associated Person.
- Support for Dublin Core semantic tags for both Person/Place properties and Resource/Citation parameters. Support for their machine-readable OpenURLs.
- Streamlined approach to Person and Place names that retains their unified handling but accommodates name types, name styles and sorting for different cultures.
- Support for Dual Dates (aka Double Years).
- Support for URL hyperlinks in narrative.
- Support for general reference notes in narrative.
- Copyright and other permissions/prohibitions.
- Identification of physical artefacts as Resources.
- Extended inheritance mechanism to Resources (e.g. attachments) and Citations (e.g. sources) so that the same details may be shared between multiple entities.
The Data Model case studies include examples such as:
- Evidence and Timelines
- Multi-Source Events
- Personal Events
- Double Years
- Multi-Role Event
- Complex Citation Reference
- Multiple Births Spanning Midnight
- Recording Oral history
- Evidence, Reasoning, and Conclusion
STEMMA V2.0 has now been published. This has undergone a considerable number of refinements to both stengthen and streamline its specification. Features include:
- Better support for recording transcriptions, including uncertain characters, marginalia, original emphasis, alternative spellings/meanings.
- Better separation of evidence from conclusion for marked-up references and for Property values.
- Generic Group concept that can be used to model time-dependent sets of Person, e.g. family units.
- Support for attribution of individuals, whether represented within the family history or external to it. Contact details, including address, phone, email addresses, Web sites, and messaging systems.
- Revised date-string representation for world calendars.
- Downloads section.
® STEMMA is a registered trademark of Tony Proctor.