A large proportion of today’s software development is unsuccessful. One reason for this is thought to be lack of attention to the user. Maintaining a user-centred focus during software production is regarded as a major problem. Introducing an HCI designer role into the software team (they usually function as external advisors) is thought to be a means of addressing this problem. Issues surround...

BACKGROUND The Green River Formation (early Eocene, about 42-53 Ma) at and near Fossil Butte National Monument in Wyoming, USA, is world famous for its exquisitely preserved freshwater teleost fish in the former Fossil Lake. Nonetheless, trace fossils attributed to fish interacting with the lake bottom are apparently rare, and have not been associated directly with any fish species. Here we int...

Querying source code interactively for information is a critical task in reverse engineering of software. However, current source code query systems succeed in handling only small subsets of the wide range of queries possible on code, trading generality and expressive power for ease of implementation and practicality. We attribute this to the absence of clean formalisms for modeling and queryin...