What are the integration testing strategies?

There are variety of strategies to execute integration testing.

• Big Bang Approach - All the components are integrated together at once and tested.This is convenient for small systems.                                                                                                              
• Incremental Approach - Testing is done by joining two or more components that are logically related. this process continues until all the modules are joined and tested successfully. Further incremental strategy is divided in to the different strategies such as ,                                                                                                                                                                                                                               *Top Down Approach                                                                                                                     *Bottom Up Approach                                                                                                                     *Sandwich Approach - Combination of Top Down and Bottom Up