Hierarchical database model

A hierarchical database model is a way of organizing data into layers. Think of it like a pyramid. At the top of the pyramid is one layer, called the root layer. All of the other layers, called branches, are underneath the root layer. Each branch has different kinds of information that is related to the root layer. For example, the root layer could have student information and then each branch could have the student's majors, classes, and grades, all related to the student in the root layer. Hierarchical models can help organize large amounts of data so that it is easier to find what you are looking for.