Integration testing is unnecessary if each application is fully tested." Comment on this.

1. Out-of-the-box integration has to be defined.2.Open Integration3. Integration of the Holistic4. Integration that is Driven by AI

describe  how to accomplish items listed, (functions of specific products, its existing interfaces, the integration of all functions). For example, if you have mentioned that you will test the existing interfaces, what would be the procedures you would follow to notify the key people to represent their respective areas, as well as allotting time in their schedule for assisting you in accomplishing your activity?

Assume that your company uses a release methodology for its sales system. The current version is 5.5. Decide whether each of the following changes would justify a version 6.0 release or be included in a version 5.6 update: (a) Add a new report, (b) add a web interface, (c) add data validation checks, (d) add an interface to the marketing system, and (e) change the user interface. Explain with enough details to recieve full credit.