When is a good time? Mediating Notification Delivery to Reduce Cost of Interruption
|Event Date:||April 21, 2008|
|Speaker:||Shamsi T. Iqbal|
|Speaker Affiliation:||University of Illinois at Urbana-Champaign|
|Sponsor:||ECE Prospective Faculty Member|
|Contact Name:||Prof David Ebert
|Open To:||Acceptable for ECE694A
Interruptions in the workplace are becoming increasingly prevalent due to the proliferation of proactive behavior within communication applications and collaborative practices. Research has shown that interruptions at inopportune moments often result in substantial costs to users and their tasks, e.g. frustration and reduced productivity. However, information conveyed by notifications is also often beneficial to users. A current thrust within the HCI community has been to develop solutions that reduce the cost of interruption caused by notifications while maintaining their utility.
In this talk I will present my research on developing and evaluating a new solution to the problem of notification management – mediating notifications to be delivered at breakpoints during user tasks. I will first present empirical results from a study that applies theories of memory and action to understand why breakpoints have lower interruption costs. Next, I will describe a new technique derived from theories of event perception that can detect multiple levels of breakpoints during free-form tasks without requiring any knowledge of the task. I will then present Oasis, a system for scheduling notification delivery at moments it detects as breakpoints. Oasis allows effects of notification scheduling to be studied in practical settings and provides a test bed for experimenting with various scheduling policies. Finally, I will discuss empirical results demonstrating the utility of the system in context of authentic tasks and discuss its impacts on productivity and user affect. This work provides the first empirical evidence that intelligent notification management benefits the end user and contributes new lessons for designing effective notification management systems.
Shamsi T. Iqbal is a Ph.D. candidate in the Department of Computer Science at the