ESRI Topologies
From Wildsong
Basic concepts
Rank - higher rank = move feature less to perform fixes
Cluster tolerance - how far apart can features be to be considered the same?
Rules - define the relationship between features participating in a topology
Relevant ESRI tutorials
Editting. part 4 http://desktop.arcgis.com/en/arcmap/10.3/manage-data/editing-fundamentals/exercise-4a-editing-shared-features-with-a-map-topology.htm
Building geodatabases http://desktop.arcgis.com/en/arcmap/10.3/manage-data/geodatabases/a-quick-tour-of-the-building-geodatabases-tutorial.htm