Collaborative review workflow graph

A review workflow graph (e.g., graph database) is provided that is a graphical representation of a review workflow assigned to a document and/or an individual document section. In particular, contents of the document may be stored as nodes in the review workflow graph. As the reviewers perform the review workflow, results associated with one or more review processes may be recorded and stored in the review workflow graph with relationships to the content nodes. In aspects, the graph of nodes may be materialized into a view of the document and/or a review timeline. For instance, portions of the document that have been completed may be materialized, but content that is not yet complete (e.g., reached a milestone) may not be materialized. Additionally, the review timeline may be a visual or other representation of the temporal progress of the review workflow, including intermediate milestones as well as an ultimate completion deadline.