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The metadata provided on Historic Scotland's CD for Scottish SAMs covered all these points. Andrew > Chris Wardle wrote: > > > So one of the aspects that I think should be looked at (though to some > > extent we may already be too late) is that that there needs to be some > > consideration of who it is that is to draw the difinative boundary on > the > > GIS and then makes it available to the other who might need it on a > regular > > basis. > > This brings up the subject of precisely *which* metadata will be needed > for an > adequate quality control of such digital map layers. Besides the metadata > about > locational precision and accuracy, there must be metadata about the formal > status of the map layer (if it has any). Map layers representing > information > with any kind of legal status should have metadata about: > - precise nature of that legal status > - organisation (and, where appropriate, office) responsible for providing > the > digital map data > - dates on which and method by which the map layer was digitised > - a reference to the most up-to-date available source of information > regarding > the map layer > > Such metadata would at least inform the user about the problems listed by > Chris: > >