Teehnieal Speeifieation (TS) 14, 15,
81,95,306
teehnology viewpoint 42, 43
temporal aeeuraey 37, 94
temporal schema 32,70,76,89,180,
184
terminology 8,17,25,36,37,43,
53,66,67,72,102,55,125-127,
186, 187, 189
Terminology Maintenanee Group
(TMG) 33
tessellation 98, 146, 170
thematie aeeuraey 37, 94
Thiessen polygon 97,111,146,169,
175
TIFF 3,5,67,96,97, 101, 188,305
TIFFIIT 101,188,305
TIN(tin) 97,111,131,132,146,
169,171,172,174,175,178,305
TMG 33
topology 39, 158, 159, 163, 164,
179, 180, 182,215
Total Station 83
tourism GIS 35-41,44
TP_Objeet 158
TR 14, 15,32, 71, 96, 101, 123,306
traeking 48, 118-120
Traetors and maehinery for agrieulture and forestry 186, 187
transformation 5,22,58,77,79-81,
84,97,98, 104, 117, 133, 137,
149,170,195,209
travelling salesman 118
Triangulated Irregular Network (TIN,
tin) 97,111,131,132,146,169,
171,172,174,175,178,305
triangulated surfaee 132, 145, 146
trigger 119
TS 14, 15,81,95,306
u
U.S. Army Corps ofEngineers 209
UCGIS 124
UML 38,43,44,55-67, 73,88,91,
126,129,214,215,230,255,256,
298,306
Index
321
UN 18,19,51,192-196,199,203206,306
UNECE 193, 205, 306
UNGEGN 192,193,206,306
UNGIWG 193,205,306
Unified Modelling language (UML)
38,43,44,55-67, 73,88,91, 126,
129,214,215,230,255,256,298,
306
Uniform Resouree Loeator 116,306
union 152
unit of measurement 58, 259
United Nations 18, 19,51,192-196,
199,203-206,306
United Nations Eeonomieal Commission for Europe, Statistical Division (UNECE) 193,205,306
United Nations Geographie Information Working Group (UNGIWG)
193,205,306
United Nations Group ofExperts on
Geographieal Names (UNGEGN)
192,193,206,306
Universal Transverse Mereator
(UTM) 78-82, 306
University Consortium for Geographie Information Seienee 124
upNormal 156
URL 116,306
usage 37,59,70,94
use-ease diagram 66
User interfaces (JTCl/SC35) 186,
191, 192
USGS 209
UTM 78-82, 306
V
value objeet 172, 175
vertiealCurve 132, 143, 144, 157
video eamera 110
viewpoint 6, 42, 43, 72, 177
Virtual Reality Modelling Language
29,49,306
VRML 29,49,306