Data Modeling Fundamentals: Subtyping and Inheritance in XML and OWL

How do we represent complex hierarchies and relationships in modern data systems? Understanding how to structure data using inheritance and semantic rules is key to building systems that exchange information accurately and scale gracefully. This written course guides you through the foundational concepts of subtyping and data modeling using two of the most robust standards in the industry: XML Schema and OWL. You will begin with core terminology, exploring how data models define types, properties, and constraints. As you progress through the text, you will learn how to extend and restrict types in XML, and how to define advanced semantic relationships, property characteristics, and class hierarchies in OWL. What you'll learn: - Understand the core concepts of subtyping, inheritance, and data modeling - Configure type extensions and restrictions using XML Schema patterns - Define semantic relationships and class hierarchies with OWL - Apply functional properties and cardinality constraints to enforce data integrity - Compare structural typing with semantic web modeling conventions - Practice designing clean, interoperable schemas for modern data exchange This course is structured to build your knowledge from the ground up, starting with basic definitions before moving into structured text-based examples and step-by-step model breakdowns. It is designed entirely for beginners with no prior schema design experience required. Start reading today to build a strong foundation in modern data modeling.