4GT Approach

The Fourth Generation Technique (4GT) is based on NPL that is the Non-Procedural Language techniques. Depending upon the specifications made, the 4GT approaches uses various tools for the automatic generation of source codes. It is the vital tool which uses the non-procedural language for Report generation, Database query, Manipulation of data, Interaction of screen, Definition, Generation of code, Spread Sheet capabilities, High level graphical capacity etc.

Like any other models used, the 4GT approach requires the requirement analysis step. Once the requirement analysis is done upto the expectations, its translation into the operational prototype begins. The most important phase in the 4GT approach is the customer developer approach, all the major decisions regarding the implementations, costs and functioning of the system is taken in this phase.

The Fourth Generation Technique (4GT) is usually successful in implementing smaller applications as we can easily switch from the requirement analysis phase to the implementation phase. Prototypes of any applications can be easily developed with the help of the 4GT approach. This prototype helps the clients to give a rough idea of how the system will look when it is done. The 4GT model is very useful approach in small projects but it is not a dominant approach for large software development.