*I: Which processor should be used?
?P: Processor A.
AS: Fast
*P: Processor B.
AS: Already in use, thus cheaper.
-P: Processor C.
AO: Won't be available in time.
The keyword I indicates an issue,
P a position, AS a supporting argument,
AO an opposing argument,
- a rejected position,
* an issue that has been resolved or a position that has been taken,
and ? a positions about which no decision has been taken.
A graphical version,
called gIBIS,
displays these relationships graphically.
Another variation,
rIBIS [],
allows real-time argumentation,
thereby,
like other applications discussed below,
combining session- and artifact- based collaboration.