The constraint data model is a new way to organize spatial information in databases. It helps handle complex relationships between objects in a simple way. This model allows users to easily ask questions about spatial data using regular database language. It can work with data in any number of dimensions, making it very flexible. The model focuses on using linear constraints, which are simple mathematical rules, to represent geometric shapes in space. This approach can be used for different types of spatial data, like maps or time-based information. Overall, the constraint data model offers a powerful and versatile way to work with spatial data in databases.