> For the complete documentation index, see [llms.txt](https://mun.gitbook.io/dbms/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mun.gitbook.io/dbms/database/view-of-data.md).

# View of Data

A database system is a collection of interrelated data and a set of programs that allow users to access and modify these data. A major purpose of a database system is to provide users with an abstract view of the data. That is, the system hides certain details of how the data are stored and maintained.

* [Data Abstraction](/dbms/database/view-of-data/data-abstraction.md)
* [Schemas and Instances](/dbms/database/view-of-data/schema-and-instance.md)
* [Data Models](/dbms/database/view-of-data/data-models.md)