Layers published in the DC GIS database should follow a naming convention denoting their theme and geography type, sometimes including a year where needed (“<Name or abbreviated name><geography type abbreviation>”).  The geography type is “Pt” for point, “Ln” for line, and “Ply” for “polygon.”  The following details this convention for Public Schools:

• Point Layer:  PubSchPt
• Polygon Layer:  PubSchPly
• Line Layer:  PubSchLn

For a layer that has data for a particular year, such as census tracts.  The format is “<Name or abbreviated name><last two digits of the vintage year><geography type abbreviation>.”  For 2000 Census Tracts, that would be “Tract00Ply.”  Feature dataset names shall not exceed 25 characters in length.