Contents

• Kurzfassung
• Abstract
• Acknowledgements
• Contents
• List of Figures
• Introduction
• 1. Basics and related work
  • 1.1 Computer-Supported Cooperative Work
  • 1.2 Classification of Computer-Supported Cooperative Work
    • 1.2.1 Same Place Same Time
    • 1.2.2 Different Time Same Place
    • 1.2.3 Same Time Different Place
    • 1.2.4 Different Time Different Place
  • 1.3 CSCW and Computer Aided Instruction
    • 1.3.1 Example of a Web Based Training System: GENTLE
  • 1.4 Synchronous Communication
    • 1.4.1 Examples of existing products
    • 1.4.2 Comparison of the Introduced Products
  • 1.5 A Synchronous Distributed Graphics Laboratory
• 2. Program Description
  • 2.1 Login Procedure
  • 2.2 Main session window
  • 2.3 Discussion window
  • 2.4 Image window
    • 2.4.1 General Image Functions
    • 2.4.2 Drawings
    • 2.4.3 Annotations
    • 2.4.4 Geometric Transformations
    • 2.4.5 Image Processing
    • 2.4.6 Color Manipulation
• 3. Design Aspects
  • 3.1 Distributed Artifacts
  • 3.2 Communication Architecture
  • 3.3 Programming Environment
• 4. Implementation
  • 4.1 Functionality of Artifact Objects
  • 4.2 Server, Clients and Object Distribution
    • 4.2.1 Client/Server Communication
  • 4.3 Images (class GipImage)
    • 4.3.1 Loading Images
    • 4.3.2 Saving Images
    • 4.3.3 Manipulation of Images with Java Image Filters
    • 4.3.4 Serialization of AWT images in Java 1.1.x
  • 4.4 Drawings (class GipDrawing)
    • 4.4.1 Implemented Types of Drawing Objects
    • 4.4.2 Interpolated Cubic Curves
    • 4.4.3 Approximated Cubic Curves
  • 4.5 Annotations (class Annotation)
  • 4.6 Group Discussion (class Discussion)
• 5. Conclusion and Future Work
  • 5.1 Awareness
    • 5.1.1 Awareness of remote colleagues
    • 5.1.2 Awareness of user actions
  • 5.2 User Administration
  • 5.3 Session Scheduling
  • 5.4 Extension of Functionality
• 6. Installation Guide
  • 6.1 Installation of the software
  • 6.2 Configuration
    • 6.2.1 Configuration Properties
    • 6.2.2 Configuration File
    • 6.2.3 Command line options
  • 6.3 Creating the user access file
  • 6.4 Starting the server
  • 6.5 Starting the client
  • 6.6 Troubleshooting
• Bibliography
• About this document ...