ІІ Layered Approach:-

In this method both front end & back end applications are designed using two different tools & can be present in two different machines

Role of Native Drivers:-

• As front end & backend applications are designed using 2 different tools. So, front end tool cannot understand backend tool & backend tool cannot understand frontend tool. Native drivers are used as translators between front end & back end tools

• Front end tools native driver will take the request from front end tool, converts into back end tool native driver understandable format & sends to front end

• Back end tool native driver will take the request from backend tool & converts into front end tool native driver understandable format & sends to front end

Advantages of ІІ Layered Approach:-

• Supports centralized database
• Most of the databases can withstand for large amount of data

Disadvantages of  ІI Layered Approach:-

If any front end tool if one native driver is designed to interact with any backend tool & that native driver cannot be used to interact with other backend tool that means every front end tool should have separate set of native driver to interact with backend tool like

If one native driver is designed for any backend tool to interact with some front end tool that native driver cannot be used to interact with other front end tools. So every backend tool need to have one separate set of native drivers to interact with each front end tool like

To overcome this disadvantage we use ІІІ layered Approach