It performs work on the interface, through many processes like source code interface which is used for library of the system, and also provides services to program. It is useful to organizational view it could be beneficial for big user investment and their requirements. When it implemented then it very difficult to change the system in the case of maximum user. It consists many commands, functions which is used in making software.
Database layer: It gives data by encapsulation with database designing. And it also give standard interface to the application layer. It helps database performing all operations. It contains some classes which play important role:
Application Layer: It is very important layer on which all operations performs all types of source, word and domain etc. It is also contain some classes:
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