Significados de abstraction layer em inglês

InfoWorld: I understand that Drupal 7 will feature a database abstraction layer.

Buytaert: Drupal 7 will have a completely new database abstraction layer.

With the new database abstraction layer, we'll see support for many more databases.

It's better to hide the data sources behind an abstraction layer.

It's an abstraction layer that sits over an operating system.

Although there are differences between the two, the differences are hidden behind an abstraction layer.

Storage virtualization creates an abstraction layer between host and physical storage that masks the idiosyncrasies of individual storage devices.

However, with the advent of HVM as an abstraction layer, the administrator can simply specify HVM and let Xen figure out the details.

It will be written from scratch and it actually does address a whole bunch of shortcomings with the database abstraction layer in Drupal 6.