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We present the detailed planning and execution of the Insight Toolkit (ITK), an application programmers interface (API) for the segmentation and registration of medical image data. This public resource has been developed through the NLM Visible Human Project, and is in beta test as an open-source software offering under cost-free licensing. The toolkit(More)
Sustainable software ecosystems are difficult to build, and require concerted effort, community norms and collaborations. In science it is especially important to establish communities in which faculty, staff, students and open-source professionals work together and treat software as a first-class product of scientific investigation-just as mathematics is(More)
Web design is still primarily an artistic endeavor. However, we are beginning to see empirical research results that tell us what pitfalls to avoid in order to create successful websites.In this SIG, we will discuss the latest research results available. Individuals designing websites can share successful strategies, and discuss questions still(More)
We observed the same task executed by 49 users on four production web sites. We tracked the rates of discovery of new usability problems on each site and, using that data, estimated the total number of usability problems on each site and the number of tests we would need to discover every problem. Our findings differ sharply from rules-of-thumb derived from(More)
The DOE leadership facilities were established in 2004 to provide scientist capability computing for high-profile science. Since it's inception, the systems went from 14 TF to 1.8 PF, an increase of 100 in 5 years, and will increase by another factor of 100 in 5 more years. This growth, along with user policies, which enable scientist to run at, scale for(More)
The ideas and findings in this report should not be construed as an official DoD position. It is published in the interest of scientific and technical information exchange. Use of any trademarks in this report is not intended in any way to infringe on the rights of the trademark holder. Internal use. Permission to reproduce this document and to prepare(More)
This tutorial is inspired by our observations of users struggling with web sites and our consulting work with clients who face the many challenges of web site development. We've witnessed the effects of less-than-optimal web site design and the pain it causes users. Our client work and research have given us insights into the <i>causes</i> of unusable(More)
KEYWORDS Prototyping, low-fidelity prototyping, process management, product development, contextual inquiry, modeling, practical techniques, group dynamics MISSION User Interface Engineering is a seven-year old company researching and consulting on what makes products usable. Our mission is to encourage and foster creative product development teams that(More)
Over the last twenty-five years, visualization software has evolved into robust frameworks that can be used for research projects, rapid prototype development, or as the basis of richly featured, end-user tools. In this article , we take stock of current capabilities and describe upcoming challenges facing visualization software in six categories: massive(More)