
Jeroen ter Heerdt enhanced the MicrosoftDocs/powerbi-docs and query-docs repositories by delivering targeted documentation improvements for DAX, Power BI time intelligence, and user-defined functions. He focused on clarifying technical capabilities, correcting inaccuracies, and restructuring content to improve onboarding and reduce developer confusion. Using DAX, Markdown, and YAML, Jeroen consolidated data type references, stabilized author metadata, and managed cross-repository link integrity. His work included updating documentation to reflect current product behavior, removing outdated limitations, and introducing best practices guides. These efforts improved documentation maintainability, accuracy, and navigability, supporting both new and experienced developers in implementing Power BI and DAX solutions.

October 2025 focused on documentation quality improvements across two MicrosoftDocs repositories (powerbi-docs and query-docs), delivering precise corrections and capability clarifications that directly improve customer understanding, onboarding, and support efficiency. The updates align documentation with current product capabilities and reduce ambiguity for users integrating Power BI with embedded scenarios and time intelligence features.
October 2025 focused on documentation quality improvements across two MicrosoftDocs repositories (powerbi-docs and query-docs), delivering precise corrections and capability clarifications that directly improve customer understanding, onboarding, and support efficiency. The updates align documentation with current product capabilities and reduce ambiguity for users integrating Power BI with embedded scenarios and time intelligence features.
September 2025 monthly summary: Delivered comprehensive documentation improvements across two Microsoft Docs repositories, focusing on DAX UDF best practices and Power BI time intelligence. Key outcomes include a structured overhaul of DAX docs with a new DAX User-Defined Functions Best Practices guide, extensive link and asset cleanups, author metadata stabilization, and targeted updates to time intelligence content with IntelliSense notes and usage guidance. These changes improved accuracy, navigability, and onboarding for developers and analysts, reducing potential support friction and enabling faster model design and implementation. Demonstrated skills in documentation architecture, content governance, asset management, and domain knowledge of DAX and Power BI time intelligence.
September 2025 monthly summary: Delivered comprehensive documentation improvements across two Microsoft Docs repositories, focusing on DAX UDF best practices and Power BI time intelligence. Key outcomes include a structured overhaul of DAX docs with a new DAX User-Defined Functions Best Practices guide, extensive link and asset cleanups, author metadata stabilization, and targeted updates to time intelligence content with IntelliSense notes and usage guidance. These changes improved accuracy, navigability, and onboarding for developers and analysts, reducing potential support friction and enabling faster model design and implementation. Demonstrated skills in documentation architecture, content governance, asset management, and domain knowledge of DAX and Power BI time intelligence.
Concise monthly summary for 2025-08 focusing on business value and technical achievements across three documentation repositories. Highlights include feature deliveries, stability improvements, and cross-repo collaboration that improved documentation reliability and onboarding efficiency.
Concise monthly summary for 2025-08 focusing on business value and technical achievements across three documentation repositories. Highlights include feature deliveries, stability improvements, and cross-repo collaboration that improved documentation reliability and onboarding efficiency.
June 2025 Summary: Focused on documentation quality for the ABS function in DAX in the MicrosoftDocs/query-docs repository. Key deliverable: documentation updates to abs-function-dax.md to ensure the ABS function is accurately described, with no code changes. These changes correct documentation inaccuracies, clarify expected behavior for developers, and reduce potential confusion. The work is traceable to two commits (f2642fc87b03150a5c62db004b74c5afbd343ded and 079b3f68685c72d433d45842b9d88e296a584ff1). Overall impact: improved developer experience, better onboarding for DAX users, and strengthened maintainability of the docs. Technologies/skills demonstrated: markdown documentation, Git version control, change traceability, and adherence to documentation standards.
June 2025 Summary: Focused on documentation quality for the ABS function in DAX in the MicrosoftDocs/query-docs repository. Key deliverable: documentation updates to abs-function-dax.md to ensure the ABS function is accurately described, with no code changes. These changes correct documentation inaccuracies, clarify expected behavior for developers, and reduce potential confusion. The work is traceable to two commits (f2642fc87b03150a5c62db004b74c5afbd343ded and 079b3f68685c72d433d45842b9d88e296a584ff1). Overall impact: improved developer experience, better onboarding for DAX users, and strengthened maintainability of the docs. Technologies/skills demonstrated: markdown documentation, Git version control, change traceability, and adherence to documentation standards.
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