Quality Assurance versus Quality Control

A managerial tool.

QA

A set of activities for ensuring quality in the processes by which products are developed.

QA

Establish a good quality management system and the assessment of its adequacy and conformance audit of the operation system and the review of the system itself.

QA

Everyone on the team involved in developing the product is responsible for this process.

QA

Prevention of quality problems through planned and systematic activities including documentation.

QA

Prevents defects with a focus on the process used to make the product. It is a proactive quality process.

QA

Statistical Process Control (SPC)

QA

The goal is to improve development and test processes so that defects do not arise when the product is being developed.

QA

Verification

QA

A corrective tool.

QC

A set of activities for ensuring quality in products. The activities focus on identifying defects in the actual products produced.

QC

Finding and eliminating sources of quality problems through tools and equipment so that customer's requirements are continually met.

QC

Identifies (and corrects) defects in the finished product. It is a reactive process.

QC

Identifies defects after a product is developed and before it's released.

QC

Statistical Quality Control (SQC)

QC

The activities or techniques used to achieve and maintain the product quality, process and service.

QC

Usually the responsibility of a specific team that tests the product for defects.

QC

Validation and software testing

QC