MS Access is an example of a relational model database management system (DBMS). In a relational model, data is organized into tables, with each table consisting of rows (records) and columns (fields). Relationships between tables are defined based on common fields, and data can be queried, sorted, and filtered using Structured Query Language (SQL) commands. MS Access allows users to create and manipulate relational databases through a graphical user interface, making it easier to design, maintain, and query databases.