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Quality Assurance Vs Quality Control

Lately, we’ve seen a lot of debate regarding distinguishing quality assurance and quality control. Are QA and QC fully separate processes? What are the risks of carrying out QA versus QC entirely independently? Our QA and QC teams are always kept in the loop. So far, this approach works well for us. Well, let’s find out why.

So, what are they?

  • Quality assurance is proactive, it aims at preventing issues before they are detected in the product.
  • What’s product quality control? QC is a reactive approach, focused on the end product. Its functionality interface and performance.

What are the distinctions?​

#1 Scope

Quality assurance is focused on primary production. For us, it means that the code itself must be clean and developed properly.
QC takes into account secondary factors as well, such as hardware differences, browsers, API compatibi.

#1 Scope

Quality assurance is focused on primary production. For us, it means that the code itself must be clean and developed properly.
QC takes into account secondary factors as well, such as hardware differences, browsers, API compatibi.

#2 Methodology

Quality assurance methodology analyzes the development process, defines product requirements and defines user expectations.

Our QC team operates with a set of criteria and metrics created by the QA. Usually, quality managers prefer QA over QC, considering this work more creative but we think that dirty tasks like refactoring, cleaning out tech debt, fishing out bugs are exciting.

#3 Timing and duration

At EZtek, QA starts at the beginning of the process at the planning stage. QC starts at the later development stages. Once there are ready pieces of functionality, QA is a long-term continuous process, oriented at improving the team. QC lasts less, as long as the team has a product to work on.

#4 Goals

QA goals are long-term. They include:

  • Predictability to minimize the number of unexpected issues
    Efficiency to improve the development and testing speed.
  • User-driven approach to deliver products that derive from user needs
    Flexibility to build practices that fit any project.
Quality control goals are product driven. They include:
  • Reaching deliverables
  • Making sure that the product works on different devices
  • Checking compliance with the requirements devised by QA
  • Documenting all the processes
  • Validating user experience and testing functionality.

#5 Measurement and statistics

Our QA team uses:

  • Check sheets
  • Control start
  • Pareto chart and
  • Stratifications
  • Diagrams to measure the efficiency of the testing and development process.

QC teams use:

  • Statistical quality control techniques to measure the quality of the end product.

Although QA and QC are independent units, we cannot split these two processes.

At EZtek, QA and QC cooperate in a cycle once QA is done with the first interaction of optimization, they communicate the insights to QC then QC comes back to the product and the cycle continues and that’s it.

Did you know that in software development it’s common to bring QA and QC experts from an expert outsourcing team? Remote audits, consultations and cooperation allow cutting organizational costs. Getting an expert specialist with years of experience and receiving a third opinion.

You are most welcome to contact our Eztek team. We are not only providing engineering services but also QA and QC experts to top companies and enterprises.

A new article about agile Vs waterfall will go up soon on our Blog channel. Follow us not to miss it!

 

 

Thinh Tat

Thinh Tat

CEO

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