ICSE 2001 23rd International Conference on Software Engineering We are pleased to announce that ICSE 2001 ADVANCE PROGRAM is now on-line at the conference web site: http://www.csr.uvic.ca/icse2001/ Also, ICSE 2001 REGISTRATION is now open and can be accessed at http://www.csr.uvic.ca/icse2001/registration.html ICSE 2001, the premier conference for software engineering, will feature the latest inventions, achievements, and experiences in software engineering research, practice, and education, and will give researchers, practitioners, and, educators the opportunity to present, discuss, and learn. The ICSE 2001 Software Engineering Week, May 11-20, 2001 consists of the main ICSE conference and over 50 tutorials, workshops, collocated conferences, and symposia. The conference venue is the Westin Harbour Castle overlooking Lake Ontario in downtown Toronto, with restaurants, theaters, shopping and plenty of other activities. The main ICSE 2001 program includes 47 technical papers, eight case-study reports, six education papers, an invited industry track, nine formal research demonstrations, and four panels. The program also contains six plenary sessions with outstanding invited keynote speakers. The main ICSE 2001 program also contains two new features: Challenges and Achievements in Software Engineering (CHASE), in which each session offers both research and industrial views of the same topic; and Frontiers of Software Practice (FoSP), which provides mini-tutorials on new and promising software technologies. Throughout the conference, there are also exhibits, posters, and informal research demonstrations. Finally, the conference features three casual receptions with great food and entertainment to give all an opportunity to meet and mingle with old and new friends. Prior to the main ICSE 2001 program, there are 22 tutorials (full day and half day) on a variety of topics and 18 workshops that offer an informal forum for interaction. There are also three special symposia: the David L. Parnas Symposium, the New Software Engineering Faculty Symposium, and the Doctoral Symposium. Finally, both prior to and immediately following the main ICSE 2001 program, there are four collocated conferences: International Workshop on Program Comprehension (IWPC 2001); Engineering for Human-Computer Interaction (EHCI 2001); Symposium on Software Reusability (SSR 2001); and Spin Workshop on Model Checking of Software (SPIN 2001). We look forward to seeing you at ICSE 2001! Hausi Muller Mary Jean Harrold & Wilhelm Schafer General Chair Program Co-Chairs