Worked on the FinOps-Open-Cost-and-Usage-Spec/FOCUS_Spec repository to deliver a targeted data schema cleanup, focusing on removing deprecated ProviderName and PublisherName columns. This update aligned the schema with the v1.3 specification, reducing schema drift and minimizing potential data errors across ETL pipelines and downstream analytics. The work was implemented using Markdown for documentation and version control tools to manage changes, emphasizing data specification best practices. By clarifying schema expectations and eliminating outdated fields, the update improved data integrity and simplified future schema evolution, resulting in a cleaner data model and reduced maintenance overhead for ongoing and future enhancements.