Different between QAssurance / QControl

I look at the change from QC to QA as an evolution.

QC is the older style term, and generally refers to the practice of verifying quality on the completed item.

QA refers to a program where you verify the design and operation of the processes,and verify that the process is running within acceptable limits to produce proper results.

Think of QC as reactive, and QA as proactive.

Verification and validation are a little more interchangeable. But again fall into the reactive / proactive mode.
Verification checks that the process has performed correctly that time, validation verifies that the process is able to always produce the correct results.

As said above, QA is about prevention. QA ensures that you are doing the right things.

QC is about correction. QC verifies that you are doing the right things RIGHT.

I don't see this as a transition from one to the other. QA and QC shouldbe performed together. Even if you're QA is so good that you are ISO certified, you still need to do QC.

I to agree with opinion about QA and QC, but I think and appoint:

1)QA and QC can to be more ample.

QA can to include Information Systems and Information Technology Infrastructure, as well as QC.

2)The verification is static, refers QA, and the validation is dynamic, refers QC.

With in several organizations (not all) that I have either worked for or been contracted with, we used both QC and QA.

We would break it down to QC covering design and development specifications. (the code works, hardware is functioning, we site is online).

Once we had the 'pass' in QC it would go to QA level where we would get client/customer assurance that the deliverable was to their specification and expectation. To avoid reworking an entire project, the QC & QA were ongoing with RAD and prototypng.

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Which is the Integration ITIL (Information Technology Infraestructure Library) with QA & QC about:
- Configuration Management
- Change Management
- Release Management