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Just to add my twopennyworth to this one. I don't know how Exegesis works but on our system anyway we are getting rid of all the sub-numbers and have adopted a parent / child system instead. This entails giving a record a 'parent' where appropriate - it can be any other record. It allows much more flexible linking between any records. Any record can have any number of children (and if necessary grandchildren). Relationships can also be changed if need be later without the need to renumber. From the parent record it is possible to 'Find children' which brings up a filtered set. From a child record it is possible to click to go to the parent. For example, the Wade Road across the Corrieyairack Pass from Laggan to Fort Augustus has one 'parent' number, used for all general information about the road as a whole. However, the road is scheduled in several sections, and some of the bridges are listed. Users might wish to access any of these features individually, so each of these forms a 'child' record. A few years ago we commissioned a couple of surveys which identified a large number of individual minor engineering features such as culverts, etc. Eventually I would hope to accession each of these as a separate grand-child record (i.e. children of the scheduled monument section records). The NMRS have however divided the Corrieyairack Pass up in a different way, so I have linked all their records to the parent. We have used the same approach with the Caledonian Canal. Find-spots can be tied in. Note however that each record can only have one parent! This seems to work pretty well. I would however like to store all our records on the GIS as polygons rather than as point data. At the moment linear records have to be given a grid ref so I have used a convention of the south/western end for each section. At the moment we only have the listed buildings (and a few scheduled areas) as polygons but one day... I hope this is of some interest... it's how we've tackled the problem anyway. John ---------------------------------------------------------- John Wood Senior Archaeologist Planning and Development Service The Highland Council Glenurquhart Road Inverness IV3 5NX Tel: 01463 702502 Fax: 01463 702298 Email: [log in to unmask] Web: <http://www.higharch.demon.co.uk> This Email (and any attachment) is intended for the exclusive use of the addressee(s) only. You should not disclose its contents to any other person. If you receive this message in error, please contact the sender and delete the message. Thank you Opinions expressed herein are my own and do not necessarily represent those of my employer.