Subscriber Line 172 external resource relation 346, 347, 374 High-level Data Link Control 168 external transport network 182, 214, 235 Home Location Register 11, 235 horizontal integration 206-207, 217, 242 feature state 408-410 host 180, 189 Finite State Machine 402 - network 189 - diagram 403 - number 188, 192 fixed connection process control 209 fixed networks 208 implemented system 13-36, 75, 85, 96 flat mode 212 information flow control 292 - management 22 foreground model 98 - system 10, 11, 13, 15 Index Integrated Services Digital Network 40-44, layer 28 103, 105, 109, 112 link 143 - terminal system 224 Link Access Procedure 44, 147, 159, 160, 168, integration 21, 81-84, 424 170, 180, 187 - function 83 living system 10 - hierarchy 20, 30, 81, 83-84, 93, 101, 217, Local Area Network 174, 180, 182 local identifier 121 - level 81, 84 locating 203, 261 - mechanism 21, 84, 90, 99, 262 logical integrator 83-101, 253-254, 269, 280 - connection 95, 122 intelligent message generator 316 - dimension 31, 77-78 Intelligent Network 204, 209 - link 145, 196 - Application Part 209, 213 - link control 234 - node 213 logical network 20, 38-39, 45, 78-101, 103, initiate operation 392, 419 182, 217 initiating event 341, 400 - management system 206, 209 interface - structure 103, 108, 111, 118, 182, - control information 117 193-194, 200, 202-204, 217, 238 - data unit 116-117 logical node 21, 39, 43, 75-100, 256 - refinement 207, 224, 279 - model 294 - symbols 109, 143 - structure 134, 145, 225 Interface Description Language 27 layer 87, 104, 182, 194, 204, 218 internal - initiating event 342, 377, 391, 400, 414, 418 Managed Information Base 210 - resource relation 374 Managed Object 210 International Council on Systems management 205 Engineering 3-4 - systems 217 International Telecommunication Union 5 - unit 199 - telecom sector (T) 3, 5, 12, 40, 44-45 master 358 Internet 104, 109, 167, 180-181 master-slave relay chain 304 - address 180, 185, 187, 188, 190 matter/energy/information 10, 11, 16, 17, 38, - Control Message Prot