→ Data Lake
→ Data Lakehouse
→ Structured Data
→ Unstructured Data

Semi-structured data is a mix between structured and unstructured data. It doesn’t fit perfectly into rows and columns like structured data, but it still has some form of organization (like tags or labels) that helps make sense of it. Examples include JSON files, XML, or data from online forms. It’s more flexible than structured data and easier to process than fully unstructured data.