Being a primary concept, the information space cannot be precisely defined and is set as a dialectical opposition to the material, physical, object space.
12.
The object space does not exist only on the " input " side of the system, nor the image space only on the " output " side.
13.
An object, when deposited into a space, needs to be registered with an " Object Directory " in the " Object Space ".
14.
A process may choose to wait for an object to be placed in the " Object Space ", if the needed object is not already present.
15.
"Object Space " can be thought of as a virtual repository, shared amongst providers and accessors of network services, which are themselves abstracted as objects.
16.
Because once an object is accessed, it has to be removed from the " Object Space ", and is placed back only after it has been released.
17.
The term " object point " does not necessarily refer to a point on a specific object but rather to a point in object space; similarly for " image point ".
18.
:" The RPC model forms the co-ordinates of the image point as ratios of the cubic polynomials in the co-ordinates of the world or object space or ground point.
19.
Thus, an object point on the " output " side of the system is in the virtual part of object space and is referred to as a " virtual " object point.
20.
A particularly fine variation on this is the call / cc function which saves the call stack ( which is called a continuation ) but not the object space ( the content of existing objects ).
