What is Quality Assurance?
Quality assurance is the systematic practice of building quality into a product throughout its development, not just checking for defects at the end. It uses standards, processes and reviews to prevent problems, so software reliably meets requirements and user expectations.
How does quality assurance work?
Quality assurance is a process-led approach to delivering reliable software. Rather than waiting until the end to find defects, QA defines the standards a product must meet, establishes the practices that keep work to those standards - code reviews, clear acceptance criteria, testing at every level - and then continuously checks that the process is being followed. The emphasis is on prevention: catching the conditions that produce defects, not just the defects themselves. When something does slip through, QA also feeds the lesson back so the process improves.
QA operates across the whole lifecycle. It shapes how requirements are written, how code is reviewed, how features are tested, and how releases are managed, so quality is a property of the system of work rather than a final inspection.
Why quality assurance matters
Defects are cheapest to fix the earlier they are caught, and cheapest of all when they are prevented entirely. Quality assurance matters because it shifts the focus from reacting to defects to avoiding them, which lowers cost, speeds delivery and protects the reputation that a single public failure can damage. For any product people depend on, consistent QA is the difference between trustworthy software and a stream of avoidable incidents.
What does quality assurance include?
QA is broader than testing alone. It typically covers:
- Standards and processes - the agreed way work is done.
- Clear requirements and acceptance criteria - an objective definition of done.
- Code reviews - peer checks that catch issues before they merge.
- Testing at all levels - component, integration and end to end.
- Continuous improvement - learning from defects to prevent recurrence.
Quality assurance best practices
Define quality objectively through acceptance criteria, so done is measurable rather than a matter of opinion. Build quality in from the start instead of inspecting it in at the end. Make reviews and testing a normal part of the workflow, not optional extras under deadline pressure. Track defects and their root causes so the process keeps improving, and treat quality as a shared team responsibility rather than the job of one person at the finish line.
How PixelForce approaches quality assurance
At PixelForce, quality assurance is woven through every engagement phase rather than left to the end. It starts in Phase 1 - Scoping and Design with clear acceptance criteria, continues in Phase 2 - Development, QA and Release through reviews and structured testing, and carries into Phase 3 - Post Launch Support as the product evolves. Our in-house Adelaide team owns quality end to end, which is reflected in a 98% first-time app-store approval rate and 99.99% crash-free reliability across 100+ products shipped. Sustaining that after launch is part of our app maintenance and support work. Quality is treated as a commitment, not an afterthought.
Where this applies
The PixelForce services where Quality Assurance matters most - explore how we put it to work in client products.
Frequently asked questions
Quality assurance is process-focused and preventive - it builds quality into how work is done so defects are avoided. Quality control is product-focused and detective - it inspects the finished output to find defects that exist. In software, assurance covers standards, reviews and process, while control is closer to the act of testing the product. The two work together: assurance reduces defects upfront, control catches what remains.
No, though they are closely related and often confused. Testing is the activity of executing checks to find defects in the software. Quality assurance is the broader discipline that includes testing but also covers standards, processes, reviews and continuous improvement aimed at preventing defects in the first place. Testing tells you whether the current build works; QA is the wider system that makes builds reliably good in the first place.
At the very beginning. QA shapes how requirements are written and how acceptance criteria define done, long before any testing happens. Starting early means quality is built into the work rather than inspected in at the end, which is cheaper and more effective. Treating QA as a final phase leads to costly late discoveries. The most reliable teams make quality a continuous concern from scoping through to post-launch support.
Because software people rely on must be dependable, and a single public failure - a crash, a broken transaction, a security gap - can cost trust that took years to build. Quality assurance lowers the chance of such failures by preventing defects and catching them early when they are cheap to fix. It also speeds delivery over time, because teams spend less effort firefighting and reworking, and more on building value.
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- Top Clutch App Development Company · Australia
- 100% in-house · Adelaide HQ
- 100+ products shipped
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