2. Distributed Systems Fall 2009 The assignment

3. Fall 20095DV0203 Introduction GCom – group communication middleware Apply concepts from theory –Group handling –Message ordering –(Reliable) Multicast of messages

4. Fall 20095DV0204 Rules and grading Done in pairs 3 levels –Bonus points for the exam (if non- bonus points give you ≥ 30p of 60p total)! Valid for this year's exams only –Level 1: basic system (no bonus) –Level 2: + dynamic groups (3p bonus) –Level 3: + tree-based reliable multicast (6p bonus)

5. Fall 20095DV0205 Constraints May use any programming language and any tools you like –...as long as they do not provide a too big advantage (check with us!) –Currently, we can only help with Java RMI –Do not use sockets All normal rules apply –Thou shalt not cheat, etc.

6. Fall 20095DV0206 Test and debug application(s) Test application –A user-level application that shows the functionality of the system Debug application –Used to demonstrate the correctness of your implementation These programs can, and likely will, be one and the same! –But make the debug parts non-essential to use the application –Must be GUI applications!

7. Fall 20095DV0207 Deliverables Deliverable 1 (project plan) –Your interpretation of the assignment –Requirement analysis –Project and time plan –Basic design of the system Yes, really Deliverable 2 (report) –Refers back to Deliverable 1 –Describe your system –...the usual –Make something to be proud of! One of your biggest projects during your time here at CS

8. Fall 20095DV0208 Live demonstration You will demonstrate your system to us at the end of the course –Written test protocol

9. Fall 20095DV0209 Good luck! Students have done this before, and succeeded –Certainly not easy –Hard work, big payoff –All students that attempted the entire assignment passed!