Jeliot 3

1
Jeliot 3

• Spring 2004

Andrés Moreno García Niko Myller Department of
Computer Science University of Joensuu
2
Contents

• Jeliot 3 in context
• Reasons for Jeliot 3
• Future of Jeliot 3

3
Jeliot 3 in Context

• Software Visualization
• Algorithm Animation
• Program Animation stands for those applications
  that show the execution of a program by means of
  a multimedia display.
• They can be used in any phase of the development
  cycle of a program.
• Jeliot 3 is designed to aid students to learn
  programming

4
Jeliot 3 in Context

• Jeliot 3 goes one level beyond debuggers, aimed
  at expert programmers, and delivers visualization
  of the evaluation of expression. This
  visualization fits for novices
• Complete
• Continous
• Self animated

5
Jeliot family and history

• 1993 Eliots development began at the University
  of Helsinki
• 1997 Jeliot I was released
• 2000 Jeliot 2000 was implemented at the Weizmann
  Institute of Science in Israel
• 2003 Jeliot 3 is released, developed by the
  University of Joensuu in Finland

6
Using Jeliot 3

• Common language between teacher and student
  allows different lecture settings
• As lecture material
• Follow-up assigments
• In interactive laboratory sessions
• Virtual courses

7
Jeliot 3 goals

• The system must be easy to use.
• The visualizations produced by the system should
  be consistent with the visualization in all
  cases.
• The visualizations produced by the system should
  be complete and continuous.
• The system should support the visualization of as
  large a subset of programs written in Java
  language as possible.
• The system should be extensible internally and
  externally.

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Intermediate LanguageMCode

• Proposed intermediate code to visualize programs.
• Codes the evaluation of Java programs into a text
  file
• Almost fully Java compliant.
• One language, many interpretations
  (visualizations) suitable for different
  audiences.
• Comparison with different codes used in animation
  systems (DynaLab,JAWAA, ANIMAL)

9
Future of Jeliot 3

• Support for collaborative programming (Woven
  Stories)
• Backwards interpretation
• Self-evaluation
• Improved editor
• Learning Community around Jeliot
• Teachers
• Students
• Developers

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Conclusions

• Jeliot 3 is being used in different places to
  teach basics programming.
• Easy to install and start using it.
• Modular desing that can add more functionality to
  it
• We are interested in suggestions from users.
  http//cs.joensuu.fi/jeliot/feedback.html