According DMS-REQ-0329, Data Release Production is responsible for generating “co-adds suitable for use in all-sky visualization tools”.
HiPS (http://www.ivoa.net/documents/HiPS/index.html) and MOC(http://www.ivoa.net/documents/MOC/index.html) are becoming the standard in representing all-sky images and coverages. This RFC requests that DM adopt those two standards and make the corresponding data products to fulfill the above DMS requirement.
This does not replace any other data products that DM already committed to generate.
This could allow us to use HEALPix to do all-sky binning, and spatial index.