VIWeb Application Prototype - My Undergraduate Thesis implementation of a Web tool for Information Visualization

This is the final source code of my undergradute thesis, presented in December, 2007, at Federal University of Pará State, PA - Brazil (Universidade Federal do Pará)

Abstract

Due to the vast amount of data stored electronically, Information Visualization (IV) techniques have been increasingly used to allow easy interaction and rapid visual perception of data relationships by the user to find new informations and help in decision-making and strategies. Among the various IV techniques, this work uses the scatterplot technique, which is a technique that organizes the data into visual representations based in XY axes. The development platform is web-based, because the application can run in several different machines with few software requirements, allowing the user to be geographically distant, and following a global trend in the area. The tool was developed by standard Web technologies (Java, JavaScript, Ajax, HTML Canvas), as an flexible architecture enough to implement new IV techniques quickly and efficiently, and followed the main requirements for a good IV software.

Project Folders

• VIWeb: contains all javascripts, css and html files that actually makes the fun part of Data Visualization.
• VIWebEJB and VIWebEar: just a prototype of future works, not finished, intended to be a dynamic backend to manage datasets from .txt os .csv files.

Some Screenshots

• First load of the application, showing the interactive areas. Left side: visualization area. Right side: Interaction Area and Information Analysis.

• Doing some filtering on Y axis:

• Changing the Color attribute representation: