GEDCOM/QUAY-Tag

From GenWiki

Jump to: navigation, search

Contents


This page is an English extract of the German page GEDCOM/QUAY-Tag [1], for full details see the German page.

Name and Meaning

Tag

QUAY

Meaning

QUALITY_OF_DATA

Usage

An assessment of the certainty of the evidence to support the conclusion drawn from evidence.

Formal Description of Permissible Values

Base: GEDCOM Standard Draft 5.5.1

QUAY {QUALITY_OF_DATA}:=

QUAY is defined in 4 steps, by the digits 0 to 3. Other values QUAY can not accept.

QUAY may be used only subordinated to SOUR:

SOURCE_CITATION:= 
[ /* Pointer to source record (preferred) */ 
n SOUR @<XREF:SOUR>@ {1:1} 
+1 PAGE <WHERE_WITHIN_SOURCE> {0:1} 
+1 EVEN <EVENT_TYPE_CITED_FROM> {0:1} 
+2 ROLE <ROLE_IN_EVENT> {0:1} 
+1 DATA {0:1} 
+2 DATE <ENTRY_RECORDING_DATE> {0:1} 
+2 TEXT <TEXT_FROM_SOURCE> {0:M} 
+3 [CONC|CONT] <TEXT_FROM_SOURCE> {0:M} 
+1 <<MULTIMEDIA_LINK>> {0:M} 
+1 <<NOTE_STRUCTURE>> {0:M} 
+1 QUAY <CERTAINTY_ASSESSMENT> {0:1} 
| /* For systems not using source records */ 
n SOUR <SOURCE_DESCRIPTION> {1:1} 
+1 [CONC|CONT] <SOURCE_DESCRIPTION> {0:M} 
+1 TEXT <TEXT_FROM_SOURCE> {0:M} 
+2 [CONC|CONT] <TEXT_FROM_SOURCE> {0:M} 
+1 <<MULTIMEDIA_LINK>> {0:M} 
+1 <<NOTE_STRUCTURE>> {0:M} 
+1 QUAY <CERTAINTY_ASSESSMENT> {0:1} 
]

CERTAINTY_ASSESSMENT:= {Size=1:1}

[ 0 | 1 | 2 | 3 ] 

The QUAY tag's value conveys the submitter's quantitative evaluation of the credibility of a piece of information, based upon its supporting evidence. Some systems use this feature to rank multiple conflicting opinions for display of most likely information first. It is not intended to eliminate the receiver's need to evaluate the evidence for themselves.

0 = Unreliable evidence or estimated DATA
1 = Questionable reliability of evidence (interviews, census, oral genealogies, or potential for bias for example, an autobiography)
2 = Secondary evidence, DATA officially recorded sometime after event
3 = Direct and primary evidence used, or by dominance of the evidenc

In the standard itself, no example is given. The use of QUAY can e.g. look like this:

1 CHR
2 DATE 13 SEP 1870
2 SOUR @S1@
3 QUAY 2

By this the source @S1@ for christening on 13 SEP 1870 is classified as a secondary source ( i.e. a source that was created later based on the original source ).

Agreements for QUAY

The agreements for QUAY are derived from the discussion on the Gedcom-L. They were decided by a vote of the program authors of the list.

Q1 Use and Allowable Values of QUAY

QUAY may only be used subordinated to tag SOUR, the content of QUAY may only get the values 0, 1, 2 or 3. Here 0 is the least trustworthy level and 3 the stage with the highest trustworthiness.

Q2 Selecting the Level for QUAY

The level in QUAY is defined by the user by making the corresponding input. The program is not allowed to change this value during export or import.

Q3 Proposal for Program Internal Terms

To provide users with the use of different programs better "recognition" that programs can uniformly use the following terms:

0 = estimated
1 = questionable
2 = secundary
3 = primary

It is left to each program to use other terms.

Personal tools
GenWiki-internal
In other languages