This diagram shows the platforms on which SharePoint Server and SharePoint Foundation are built.

• The boxes with a blue fill represent independent platforms and each depends on the platforms below it.
• The empty boxes inside the larger boxes are selected important subparts or features of the platform.
• The thin downward arrows indicate selected dependency relations. Not every sub-platform or dependency relation is shown.
• The thicker, green, sideways arrows indicate that one entity accesses the entity to which the arrow points. Again, only some selected access relationships are shown.

For more information, see Conceptual Overview of SharePoint Foundation and its child nodes.​