GA4GH Reads & Variants - Structural Variations
The focus of the reads and variants encoding has initially been on providing stable versions for SNPs, with a format based on the VCF file specifications.
However, when extending the data model towards structural variations (e.g. somatic copy number changes as available through array map.or), the variants + calls
model is less than optimal. At the base level, somatic, structural changes are mostly unique events, with variant=call.