This system architecture diagram example was redesigned from the Wikimedia Commons file: SdlArchitecture.JPG. [commons.wikimedia.org/wiki/File:SdlArchitecture.JPG]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/licenses/by-sa/3.0/deed.en]
An SDL system is made of functional blocks and each block can be further decomposed in sub-blocks. The lowest level block is composed of one or several process described as finite state machines." [Specification and Description Language. Wikipedia]
The diagram example "SDL Architecture" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Specification and Description Language (SDL) solution from the Engineering area of ConceptDraw Solution Park.