Architecture Sustainability [Guest editors' introduction]

Software architecture is the foundation of software system development, encompassing a system's architects' and stakeholders' strategic decisions. A special issue of IEEE Software is intended to raise awareness of architecture sustainability issues and increase interest and work in the area. The first Web extra at http://youtu.be/wUGHvocfix0 is an audio interview in which Davide Falessi speaks with guest editors Paris Avgeriou and Rich Hilliard about the importance of architecture sustainability including the three types of approaches they distinguish for handling change systematically, listed in an order of increasing severity: refactoring, renovating, and rearchitecting. The second Web extra at http://youtu.be/T-neSlUhAv0 is an audio interview in which Brian Brannon speaks with guest editor Michael Stal about his experiences with architecture sustainability as a principal engineer at Siemens AG's Corporate Research and Technology division.