Observer

From Wikinfo

Observer can have the following meanings:

In general, an observer is any system which receives information from an object

• A person that is observing, its role in observational sciences and physical reference frames: see observation
• A delegate in an organization that is sent to observe and report on the proceedings of an assembly or a meeting but that can not vote or otherwise participate.
• An aircrew member of a (military) aircraft responsible for searching (usually visually) for intelligence, opposing forces and survivors of interest to the mission
• A UK Sunday newspaper: see The Observer
• A design pattern used in computer programming: see Observer pattern
• "The Observer", a track from the Flaming Lips' 1999 album The Soft Bulletin

References

• Adapted from the Wikipedia article, "Observer" http://en.wikipedia.org/wiki/Observer, used under the GNU Free Documentation License, updated July 20, 2005