From LDM-562 (DMS L2 system requirement):
18.104.22.168 All-Sky Visualization of Data Releases
ID: DMS-L2-REQ-0049 (Priority: 2)
Specification: Data Release Processing shall generate co-adds suitable for use in all-sky visualization tools, allowing panning and zooming of the entire data release.
Discussion: For example, this could mean HEALPix tiles suitable for use in a HiPS server. The exact technology choice has to be confirmed before understanding which format is required.
22.214.171.124 Storing Approximations of Per-pixel Metadata
ID: DMS-L2-REQ-0061 (Priority: 2)
Specification: Image depth and mask information shall be available in a parametrized approximate form in addition to a full per-pixel form.
Discussion: This parametrization could be in formats such as MOC, Mangle polygons or STC regions.
Derived from Requirements: DMS-REQ-0326: Storing Approximations of Per-pixel Metadata