Microsoft SharePoint is a web application that simplifies group collaboration and the organisation and editing of content. The basis of this "building block system" are private websites that are created for working. On the one hand, this allows you to access the content from anywhere via web browser and, on the other hand, to share it with other users. For example, you can simultaneously edit documents or add lists and libraries to a team website.
The data center takes care of the provision and operation of central storage space, performs daily data backups and maintains the SharePoint software.
More information: SharePoint product description