Question

Write Notes on:

1. Validation testing – example for Anti Lock Brake system

No handwriting please.

Answer 1

1.Test Validation guarantees that the item really meets the customer's requirements.Test Validation guarantees that the item really meets the customer's prerequisites. It can likewise show that the item/programming satisfies its planned use when sent on fitting environment.

2. The process of evaluating a product during the development process or at the end of development process to determine whether it satisfies specified business requirement.

Test Validation is important as it helps in determining the following:

1. To confirm the process design as capable of reproducible commercial manufacturing.

2. Process parameters and necessary controls.

3.  Safeguard and process against sources of variation which may not have been identified during the original process development.

4.Investigate deviations if any from established parameters.

Advantages of validation:

1. if specification is misunderstood, while validating that functionality expected result and actual result can be understood.

2. Defects that are left unnoticed in the verification process can be found out in the validation process.

3. Helps in building the right product.

For Anti lock breaking system validation can be done on basis of following parameters:

1.Resent ABS: It should allow technician to react all the previous errors.

2.Present skid: When applied brake it should present skid.

3. Power up: When the driver provides power to the automobile , the ABS system shall implement "power up".

4. Power off: When user power off the vehicle ABS should power off.

5. ABS system fail: Definitely indicate if system failed.

6. Pump the brakes : should control the breaking pressure.