Models: Dexter Layers and Interfaces

• There are 3 layers with two interfaces between.
• Users, through an interface or client application, interact with the Run-time Layer, which uses special presentation specifications for unusual handling of stored objects.
• The Storage Layer manages persistent objects, in a database or file system or both, possibly through a special server process which may support distributed storage and access by multiple users (user processes). Links between objects are identified from anchors associated with those objects.
• Objects are handled in the Within-Component Layer. Each media form may have its own representation format(s) and processing (applications).