Information retrieval (IR) has changed considerably in recent years with the expansion of the
World Wide Web and the advent of modern and inexpensive graphical user interfaces and …

Workspaces provided by an object-based user interface l appear to share windows and
other display objects. Each workspace's data structure includes, for each 1 window in that …

We report on a diary study of the activities of information workers aimed at characterizing
how people interleave multiple tasks amidst interruptions. The week-long study revealed the …

Most current designs of information technology are based on the notion of supporting distinct
tasks such as document production, email usage, and voice communication. In this paper …

User attention is a scarce resource, and users are susceptible to interruption overload.
Systems do not reason about the effects of interrupting a user during a task sequence. In this …

We present data from detailed observation of 24 information workers that shows that they
experience work fragmentation as common practice. We consider that work fragmentation …

When on the move, cognitive resources are reserved partly for passively monitoring and
reacting to contexts and events, and partly for actively constructing them. The Re-source …

We report on a field study of the multitasking behavior of computer users focused on the
suspension and resumption of tasks. Data was collected with a tool that logged users' …

Many users of online and other automated information systems want to take advantage of
the speed and power of automated retrieval, while still controlling and directing the steps of …

If the field of Human Factors in Computer Systems is to be a success it must develop design
principles that are useful, principles that apply across a wide range of technologies. In the …