This paper will detail an organization's development and implementation of Schematron in its workflow process to cut down on errors as well as develop consistent markup across articles and journals. The process for developing the Schematron will be explored. This consisted of compiling error reports from 8 months of data as the basis for writing rules.The paper will examine how the Schematron was implemented into a Content Management System and broken up into Phases for the varied workflows of the organization. Upon content ingestion, files are validated against a specific Phase in the Schematron, based on the workflow, and reports are generated if any rules throw an error or warning.The results of the implementation of the Schematron will be summarized. A decline in errors was realized which reduced the average number of deliveries prior to online approval. The case study demonstrates how introducing Schematron into an XML workflow can help a publisher drive their content markup while reducing publishing delays and cost of corrections.