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The existing Pedigree Link has 4 options with a clearly defined status and associated Data Level. 3 of these define the child's relation to the parents. I think that an extra Link 'Probable' would be very useful.
I can think of two main areas where a degree of uncertainty exists in this relationship, which can not be easily marked in GenoPro. At present we have to use Comments, different line characteristics or Custom Tags to indicate that uncertainty may exist.
First situation is where a declared child is suspected to have one or two different parents from the siblings. I know of one such case personally (which I would not want to add to our family tree as the information is confidential). However for medical studies this could be of great importance. If you believe press rumours, then someone creating a pedigree of the British royal family might want to use such a feature.
The second area is ancestry tracing. In many cases you find a family in one parish and the probable birth record of the parents is in a neighbouring parish. If the marriage register names the other parish then it is safe to make a link. However in many cases you have to rely on the absence of alternative data, which is not a sure way of making a link. Similar difficulties can exist within a parish if other evidence is not available. At present I use position on a GenoMap to indicate possible connections, sometimes reinforced by an arrow generated by the Social Relationship.
At present it seems that the alternative approach of modifying the existing Data Level tag is not available - it is created and defined internally. A Custom tag can be created - but would require a fair bit of editing of the Report Generator to have any meaning there.
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I agree there should be a mechanism to document the uncertainty of a pedigree link, similar as the reliability of a source / citation.The data level is a mathematical computation of the amount of data in a given object. For instance, when a pedigree link has a comment, its level has an extra comment.
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Any comments - anyone - on the usefulness of an extra Pedigree link 'Uncertain' ?
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I would support the case for an 'uncertain' pedigree link.
Searching the UK census records from the 19th century I have come across a number of cases where persons have been recorded as 'grandson' or 'granddaughter' or 'nephew' or 'niece' where there is no indication of their parents. I have to make assumptions as to which of their grandparents' or uncle/aunt's siblings (obtained from an earlier census or recorded as living elsewhere) is their father or mother. At present I have to insert a text label '?' alongside the pedigree link to indicate the uncertainty on the Genogram (as well as documenting it under 'Comments'). An 'uncertain' link would make the process easier, and would aid documenting this within the report generator.
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GenoProSupport (1/24/2007)
I agree there should be a mechanism to document the uncertainty of a pedigree link, similar as the reliability of a source / citation.Why not make it same method as used for other information, i.e. via the Confidence Level in a source citation. The pedigree link already has a source field, but at present it can only be used for adoption and fostering links. So how about making it available for all links? Colour coding, e.g. shades of grey, and/or thickness (size) of the link are other ways to illustrate the 'strength' of the link. I have also realised when looking into to this that at present the report does not include Pedigree Link custom tags. I'll add something to handle these.
'lego audio video erro ergo disco' or "I read, I listen, I watch, I make mistakes, therefore I learn"
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