This document discusses data analysis models based on big data technology. It begins by introducing the authors and abstract, which states that big data has fundamentally changed traditional data analysis based on cause and effect to correlation-based analysis using global macro analysis. It then covers traditional data analysis methods like sample analysis and qualitative/quantitative analysis. The document outlines principles of data analysis and analyzes how big data requires correlation analysis and knowledge discovery from data mining rather than model fitting. It discusses changes to data analysis objects, processes, logic styles and tools in the big data era.