... databases, 137 38 defined, 137snapshot time, 1 38 See also DatabasesSocial quality, 492SODA model, 388 Software through Picture, 4 68 SORION model, 388 89 defined, 388 security policy, 388 89 system ... 69 78 execution model, 78 implementation issues, 78 85 information passing, 78 language expressiveness, 78 rule maintenance, 85 87 summary, 87 88 university database example, 6364See also DatabasesActive ... 466restructuring, 466standard design, 23342validation, 46163Scientific applications, 14SeaView, 380 82 components, 381 82 data model, 382 defined, 380 81 reference monitor concept, 381 Secure databases,...