The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Services, Directorate for Information PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)University of SPONSORING/MONITORING AGENCY ACRONYM(S)AFRL/SNAR This report contains color. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) ABSTRACT (Maximum 200 Words)In this paper we investigate the use of scene graphs as a general approach for implementing two-dimensional (2D) graphical applications, and in particular Zoomable User Interfaces (ZUIs). Scene graphs are typically found in three-dimensional (3D) graphics packages such as Sun's Java3D and SGI's OpenInventor. They have not been widely adopted by 2D graphical user interface toolkits.To explore the effectiveness of scene graph techniques, we have developed Jazz, a general-purpose 2D scene graph toolkit. Jazz is implemented in Java using Java2D, and runs on all platforms that support Java 2. This paper describes Jazz and the lessons we learned using Jazz for ZUIs. It also discusses how 2D scene graphs can be applied to other application areas. SUBJECT TERMSZoomable User Interfaces (ZUIs), Animation, Graphics, User Interface Management Systems (UIMS), Pad++, Jazz ABSTRACTIn this paper we investigate the use of scene graphs as a general approach for implementing two-dimensional (2D) graphical applications, and in particular Zoomable User Interfaces (ZUIs). Scene graphs are typically found in three-dimensional (3D) graphics packages such as Sun's Java3D and SGI's OpenInventor. They have not been widely adopted by 2D graphical user interface toolkits.To explore the effectiveness of scene graph techniques, we have developed Jazz, a general-purpose 2D scene graph toolkit. Jazz is implemented in Java using Java2D, and runs on all platforms that support Java 2. This paper describes Jazz and the lessons we learned using Jazz for ZUIs. It also discusses how 2D scene graphs can be applied to other application areas.

No abstract

The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Services, Directorate for Information PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)University of Maryland Human Computer Interaction Lab College Park, MD 20742 PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY ACRONYM(S)AFRL/SNAR SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) SPONSORING/MONITORING AGENCY REPORT NUMBER(S) AFRL-SN-WP -TP -2003-103 DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. This report contains color. SUPPLEMENTARY NOTES Published in ABSTRACT (Maximum 200 Words)In this paper, the authors propose Zoomable User Interfaces as an alternative presentation medium to address several common presentation problems. Zoomable User Interfaces offer new techniques for managing multiple versions of a presentation, providing interactive presentation navigation, and distinguishing levels of detail. These zoomable presentations may also offer several cognitive benefits over their commercial slide show counterparts. The authors also introduce CounterPoint, a tool to simplify the creation and delivery of zoomable presentations, discuss the techniques they have used to make authoring and navigation manageable in the multidimensional space. Lastly, some of the visualization principles compiled by the authors for designing these types of presentations are presented. SUBJECT TERMSPresentations, Jazz, PowerPoint, spatial hypertext , Zoomable User Interfaces (ZUIs) AbstractIn this paper, the authors propose Zoomable User Interfaces as an alternative presentation medium to address several common presentation problems. Zoomable User Interfaces offer new techniques for managing multiple versions of a presentation, providing interactive presentation navigation, and distinguishing levels of detail. These zoomable presentations may also offer several cognitive benefits over their commercial slide show counterparts. The authors also introduce CounterPoint, a tool to simplify the creation and delivery of zoomable presentations, discuss the techniques they have used to make authoring and navigation manageable in the multidimensional space. Lastly, some of the visualization principles compiled by the authors for designing these types of presentations are presented.

The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Services, Directorate for Information PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)University of Maryland Human Computer Interaction Lab College Park, MD 20742 PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY ACRONYM(S)AFRL/SNAR SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) SPONSORING/MONITORING AGENCY REPORT NUMBER(S) AFRL-SN-WP -TP -2003-103 DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. This report contains color. SUPPLEMENTARY NOTES Published in ABSTRACT (Maximum 200 Words)In this paper, the authors propose Zoomable User Interfaces as an alternative presentation medium to address several common presentation problems. Zoomable User Interfaces offer new techniques for managing multiple versions of a presentation, providing interactive presentation navigation, and distinguishing levels of detail. These zoomable presentations may also offer several cognitive benefits over their commercial slide show counterparts. The authors also introduce CounterPoint, a tool to simplify the creation and delivery of zoomable presentations, discuss the techniques they have used to make authoring and navigation manageable in the multidimensional space. Lastly, some of the visualization principles compiled by the authors for designing these types of presentations are presented. SUBJECT TERMSPresentations, Jazz, PowerPoint, spatial hypertext , Zoomable User Interfaces (ZUIs) AbstractIn this paper, the authors propose Zoomable User Interfaces as an alternative presentation medium to address several common presentation problems. Zoomable User Interfaces offer new techniques for managing multiple versions of a presentation, providing interactive presentation navigation, and distinguishing levels of detail. These zoomable presentations may also offer several cognitive benefits over their commercial slide show counterparts. The authors also introduce CounterPoint, a tool to simplify the creation and delivery of zoomable presentations, discuss the techniques they have used to make authoring and navigation manageable in the multidimensional space. Lastly, some of the visualization principles compiled by the authors for designing these types of presentations are presented.

Software tools, including Web browsers, e-books, electronic document formats, search engines, and digital libraries are changing the way people read, making it easier for them to find and view documents. However, while these tools provide significant help with short-term reading projects involving small numbers of documents, they provide less help with longer-term reading projects, in which a topic is to be understood in depth by reading many documents. For such projects, readers must find and manage many documents and citations, remember what has been read, and prioritize what to read next. This paper describes three integrated software tools that facilitate in-depth reading. A first tool extracts citation information from documents. A second finds on-line documents from their citations. The last is a document corpus browser that uses a zoomable user interface to show a corpus at multiple granularities while supporting reading tasks that take days, weeks, or longer. We describe these tools and the design principles that motivated them.