GENE11 — rule in the ExperimentDesign package

The rule in the ExperimentDesign package that only allows a single
FactorValue per TopLevelBioAssay hinders proper description of
multi-channel experiments and should be dropped

Discussion:
Raised by Angel Pizarro 3/4/03

"During the MGED Ontology workshop, we came across a situation that does
not allow you to describe certain ExperimentDesigns. For instance in a
loop design, you compare conditions A,B,C as follows:
A -> B
B -> C

If A,B & C represent different values of the same ExperimentalFactor, how
do you encode that a single top-level BioAssay is A -> B? Remember that
there is a Rule in the ExperimentDesign package that states that each
TopLevelBioAssay can only have a single FactorValue per
ExperimentalFactor."

Reject the Change