  This report summarizes the work of the Computational Frontier topical group
on end user analysis for Snowmass 2021. End User Analysis refers to the
extraction of physics results from reconstructed and simulated experimental
data. High energy physics experiments produce systems that perform common
reconstruction, calibration, and simulation tasks, resulting in shared data
samples. These detailed data samples are then reduced to create a range of
analysis samples, often optimized for a particular physics topic by a trigger
or data object selection. End users (analyzers) then analyze those samples to
produce physics results. Community discussions converged on categorizing the
end user analysis ensemble into Analysis Ecosystems, Analysis Models, Dataset
Bookkeeping and Formats, Collaborative Software, and Training. We present
findings and recommendations based on these key areas that impact end user
analysis.
