Guest Editors' Introduction to the Special Section on the International Conference on Software Engineering.

This article presents information about the selection of the four best papers submitted to the 27th International Conference on Software Engineering held on May 21, 2005. A summary for each paper is provided along with the author's name and the main topic of each paper. One paper deals with a new approach to software fault tolerance. Another paper discusses an environment for finding and visualizing examples of usage of an API. The third paper reports on a study to determine the limitations of tools used in computer maintenance tasks.