This e-book contains selected papers invited/presented in the Asian International Workshop on Advanced Reliability Modeling (AIWARM) which was held in Hiroshima, Japan, August 26-27, 2004. 78 papers from Asian and European area were presented at the workshop. This e-book is intended to share the ideas and results from the workshop with more reliability researchers and practitioners. Various and promising research topics are included; maintenance problems in shock models, replacement model with spare part provisioning, analysis of system operating data with fuzzy set, new algorithms in redundancy optimization problems, reliability evaluation of 3-dimensional and communication network systems, calculation problem of top-event probability in complex fault tree, sampling plans under accelerated tests, reliability design using Petri nets, and performance evaluation and modeling in software reliability.