. FOREWORD .......................................................... 1 Yasuhiko YASUDA and Kenichi MASE Special Issue on Network Operations and Management ================================================== . FOREWORD .......................................................... 3 Tetsuya MIKI, Yoshikazu KOBAYASHI, Sadao OBANA, Hiroyuki OKAZAKI and Makoto YOSHIDA INVITED PAPERS ============== . Progress in Telecommunications Services and Management ............ 5 Masayoshi EJIRI and Makoto YOSHIDA . Challenge to the New Infrastructure and Users' Embarrassment in Network Management Field ......................................... 11 Keiichiro SATO PAPERS ====== . A Telecommunications Management Integration Network .............. 17 Masahiko MATSUSHITA, Tetsuo OKAZAKI and Makoto YOSHIDA . Applying TMN to a Highly Reliable Distributed Switching Node ..... 24 Kiyoshi UEDA, Hisayoshi INAMORI, Hiroshi SUNAGA and Keiichi KOYANAGI . Intelligent Trouble Management System Based on Operation Scenario and Fault Simulation ............................................. 31 Kisaku FUJIMOTO, Masakazu BABA, Nobuaki SHIMIZU and Masahiko MATSUSHITA . Specification Description Supporting Method of Telecommunications Networks Management Using Information Model and Process Model .... 39 Ryutaro MATSUMURA and Osamu MIYAGISHI . Multilevel Network Management by Means of System Identification .. 47 Makoto TAKANO and Katsumi FUJITA . Network Management System Using Distributed Computing ............ 54 Tamiya OCHIAI . Multi-Fisheye Distortion of the Network Map ...................... 61 Tetsuo OKAZAKI, Hiromichi KAWANO and Yuji HATAKEYAMA . DUALQUEST: Real-Time Bifocal Network Visualization System ........ 68 Hiroko FUJI, Shoichiro NAKAI, Hiroshi MATOBA and Hajime TAKANO . CMIP-Based OpS-WS Interface Supporting Graphical User Interface .. 74 Hiroshi TOHJO, Ikuo YODA, Tatsuyuki KIMURA and Nobuo FUJII . ABSTRACTS (IEICE Trans., Vol.J78-B-I, J78-B-II, No.1 in Japanese) 82