It means that Prisma will provide a data access layer (we call it "application data platform" [1]) similar to the custom data access layers built by big companies [2] (e.g. TAO by Facebook or Strato by Twitter) that enables application developers to better access their databases.

We've explained that in the blog post here in the "Open-source, and beyond"-section [3].

Does that help? :)

[1] https://imgur.com/O1lwo0v.png

[2] https://imgur.com/Hb9VOWN.png

[3] https://www.prisma.io/blog/prisma-the-complete-orm-inw24qjea...