Differences between Quality Assurance and Quality control


Sno
Quality Assurance
Quality Control
1
Quality assurance is a planned and systematic set of activities necessary to provide adequate confidence that products and services will conform to specified requirements and meet user needs.
Quality control is the process by which product quality is compared with applicable standards,
and the action taken when nonconformance is detected.
2
Quality assurance is a staff function, responsible for implementing the quality policy defined through the development and continuous improvement of software development processes.
Quality control is a line function, and
the work is done within a process to ensure that the work product conforms to standards and
requirements.
3
Quality assurance is an activity that establishes and evaluates the processes that produce
products.
Quality control activities focus on identifying defects in the actual products produced. These
activities begin at the start of the software development process with reviews of requirements,
and continue until all application testing is complete.
4
Quality assurance helps establish processes.
Quality control relates to a specific product or service.
5
Quality assurance sets up measurement programs to evaluate processes.
Quality control verifies whether specific attribute(s) are in, or are not in, a specific product or service.
6
Quality assurance identifies weaknesses in processes and improves them.
Quality control identifies defects for the primary purpose of correcting defects.
7
Quality assurance is a management responsibility
Quality control is the responsibility of the team/worker.
8
Quality assurance is concerned with all of the products that will ever be produced by a process.
Quality control is concerned with a specific product.
 
Compiled from CSTE CBOK

2013: Major software failures

2013: Major software failures

Every industry is impacted with software  failures/bugs in 2013. It is very important to perform extensive QA &  testing before release to market to avoid losses

1) Health Care: 
Sebelius admitted that the testing done before the Oct. 1 launch was "clearly not" enough. "We did not adequately do end-to-end testing," she said.

http://www.foxnews.com/politics/2013/10/30/sebelius-to-face-grilling-at-hearing-on-glitch-ridden-obamacare-website-rollout/

2) Airlines:
"Sabre is experiencing a system issue,"

http://www.cnn.com/2013/08/06/travel/sabre-outage-flight-delays/

3) Financial:

A mysterious technical glitch halted trading on the Nasdaq

http://news.yahoo.com/nasdaq-trading-halts-3-hours-due-glitch-203619288.html

4) Retail:

"We experienced a technical error that caused some items to show incorrect pricing," Walmart

http://abcnews.go.com/Business/walmart-super-low-prices-website-glitch/story?id=20804317

5) Payroll:

California sues SAP over payroll system failures

http://articles.latimes.com/2013/nov/21/local/la-me-pc-california-sues-sap-20131121

Compiled by Damodhara Reddy Jammli( DJ)