Tiling Applications
Although tiling is not the default mode of window managers on any widely used platform, most applications already display multiple functions in a similar manner. Examples include email clients, IDEs, "sidebars" in web browsers, and contextual help in Microsoft Office. In addition, HTML frames can be seen as a markup language-based implementation of tiling. The tiling window manager extends this usefulness beyond multiple functions within an application, to multiple applications within a desktop. The Tabbed Document Interface can be a useful adjunct to tiling, as it avoids having multiple window tiles on screen for the same function.
Read more about this topic: Tiling Window Manager