A message board for scientist discussion
A computer scientist works on di erent research areas. When some chal-
lenging problem is solved the scientist write a formal report (a paper) where
all ndings are carefully described. The paper can be submitted to a con-
ference where a committee of experts reviews and criticises its technical
content. High quality papers are selected and scientists are invited to meet
and give a presentation of their ndings. A conference is great opportu-
nity where a scientist can present his paper to other scientists and receive
feedback from them.
You are asked by the conference organiser to build a message board
system. The system should allow a scientist to open a discussion about his
research topic. Each research topic contains a set of messages posted by
In the following the main functionality of the system are described:
each scientist can create exactly one research topic
each scientist can see all research topics created by other scientists;
each scientist can read all messages posted on a research topic;
each scientist can post a new message
Each message will be posted together with his writer and the date.
In the following there is an example of a research topic and some mes-
Research topic: Intrusion Detection Systems
Create by: Leonardo
[22/10/11 14:00] Leonardo wrote I am building a new IDS based
on neural networks. Comments?
[22/10/11 14:12] James wrote You could have many false positives.
The student should select an appropriate architectural style in order to
design the message board system. Once the architectural style is selected
the student should provide a component based diagram. (25% of the total
The student should describe the protocol used to implement the message
board system. More specically s/he should describe all messages exchanged
among components and all rules of interaction (25% of the total marks).
The student should provide the system architecture (5% of total marks)
and the reason for the selected architecture. S/he should also provide a java
implementation of the message board (45% of the total marks)
Note: If we have 5 scientists we can have a maximum amount of 5
research topic (one for each scientist).