Linking multiple result types using TEOID

Many data sets contain multiple result types of high importance, and often a combination of these result types is used to judge the outcome of the assay. An example might be potency and efficacy in a functional assay, which might be measured with result types such as EC50 and intrinsic activity, respectively.

Other assays speculatively measure very many result types simultaneously; a signal from any one of which would suggest a 'signal' in the assay. An example might be the measurement of multiple markers in the blood after dosing with a particular drug.

To formalise the connections between these data points and remove any ambiguity, the test occasion ID (TEOID) field in the ACTIVITY file is used to tie together result type values that were obtained on the same 'test occasion'. The TEOID is an optional field, but if it is not empty then it must contain a positive integer. The TEOID only has meaning within the deposition, so values (such as 1,2,3, etc) can be re-used between depositions. Each of the different result types associated with that assay should be given the same TEOID to link them.