direct way to link analysis and biomaterial?

[bradfordcondon]

as part of mapping NCBI data into chado (see #76 ) I am adding NCBI assemblies as Chado analyses. NCBI assemblies are directly associated with biosamples, which map to chado biomaterials. However, there is no biomaterial_analysis linker table.

MAGE provides a way to link biomaterials and analyses, but it is not pretty. I'd have to create a quantificiation, acquisition, assay, and protocol to link them. I'd basically be bluffing for all of those records: i dont have something equivalent in NCBI to populate them with. I'd much prefer to link directly.

I guess its also possible to link biomaterials to analyses via a shared project, but that wouldnt be specific enough if a project had multiple analyses/biomaterials.

What do you all think? is biomaterial_analysis feasible? Does it go against analysis being a single specific run of a program? If so, should we be loading in ncbi assemblies as a different chado type?