Data extraction matrix for "The Architectural Evolution of Data Analytics Platforms in Agricultural Systems: A Systematic Literature Review (2020–2026)"

Companion dataset for the manuscript's systematic literature review (Sections 2-3, Appendix A/B). Deposited to accompany the Data Availability statement. This dataset discloses everything reported at record-level granularity in the published manuscript: the 50 included primary studies (S1-S50), their classification against RQ1-RQ6, and their quality-assessment outcomes. Sheets: README, Search_Strategy, Inclusion_Exclusion_Criteria, Quality_assessment, Data_extraction, Keywords_mapping.