* reference genome: In [In Beacon 0.2 specifications](https://docs.google.com/document/d/154GBOixuZxpoPykGKcPOyrYUcgEXVe2NvKx61P4Ybn4/edit), the values expected for human data is of GRCh? format, whereas arrayMap uses HG nomenclature.
* reference genome: In [In Beacon 0.2 specifications](https://docs.google.com/document/d/154GBOixuZxpoPykGKcPOyrYUcgEXVe2NvKx61P4Ybn4/edit), the values expected for human data is of GRCh format, whereas arrayMap uses HG nomenclature. A mapping 1:1 is done on the fly to convert from GRCh to HG.
* allele: [In Beacon 0.2 specifications](https://docs.google.com/document/d/154GBOixuZxpoPykGKcPOyrYUcgEXVe2NvKx61P4Ybn4/edit), the parameter is required. However, it does not make sense at all for arrayMap (in which no sequence related data exists).
* variantClass: This is a new parameter. The value equals DUP corresponds to SEGTYPE=1 (gain) in arrayMap, while DEL is for SEGTYPE=-1 (loss). The parameter is mandatory.