BBQ User Interface

BBQ User Interface (UCSD DB-Lab)

Overview
Demonstration

The graphical BBQ (Blended Browsing and Querying) user interface, developed by the DB-Lab@UCSD, allows to define complex XML queries in an elegant and intuitive way, based on the view DTDs provided by the mediator.

Overview

The main windows of BBQ are: The condition and answer windows are used for query composition, and define the head and the body of the generated XMAS query, respectively. The actual answers returned through the mediator are displayed in a separate window and can be browsed in the usual way. Since the retrieved answers are valid XML documents, they can be queried through BBQ as well. In this way, BBQ smoothly integrates browsing and querying of XML data.

BBQ Demonstration (Experimental)

The current, experimental version of BBQ is implemented as a Java applet and requires Netscape Navigator.

BBQ@DICE:
1. Load the BBQ applet in Netscape. This will launch BBQ.
2. Possible URLs for the DTD and and the XML file are:
  - https://interlib.sdsc.edu:8080/cgi-bin2/bbq/amico-objects.dtd
  - http://www.npaci.edu/DICE/AMICO/Demo/amico-objects-long.xml
3. Create and then run a XMAS query using BBQ.
  (For example, you may select all paintings which where finished after the year 1600.)
4. The answer will be displayed using the XML Tree Viewer. The preset answer URL is https://interlib.sdsc.edu:8080/cgi-bin2/tmp/ans
BBQ@DB-Lab:
1. Load the BBQ applet in Netscape. This will launch BBQ.
2. Possible URLs for the DTD and and the XML file are:
  - http://teriyaki.ucsd.edu/bbq/amico-objects.dtd
  - http://www.npaci.edu/DICE/AMICO/Demo/amico-objects-long.xml
3. Create and then run a XMAS query using BBQ.
4. The answer will be displayed using the XML Tree Viewer.