# EM-LND-13 provider comparison

Claude and Grok agree that Data Landscape is a governed projection and Analytical Lineage View is a WM-DAT-006 profile. Neither receives independent identity or a runtime/model identifier. Both preserve definition-versus-occurrence separation, immutable successors for formula changes, version-addressed lineage, open-world missing-edge semantics, multi-facet comparability, pinned report issues, stale/incomplete markers and inherited source rights.

The reconciled shape adopts Grok's explicit issued-at snapshot rule. A reusable handle may bind issued-at, an immutable observed set, perimeter and rights stamp, but it is not enterprise identity and cannot own edges. If a projection is published as content, identity belongs to an existing WM-DAT-008 Data Product instance rather than a new landscape class.

Impact results are explicitly split into affected definitions and affected concrete issues/runs. A metric formula change creates a successor definition; prior report issues remain pinned to the old method. Same title never establishes comparability. Missing edges remain unobserved unless the exact issued projection is covered by a closed, scoped and time-bounded completeness perimeter.