DEHA’s SQA Process: Where Differentiation Builds the Brand
March 18, 2026
A software project can be delivered on time and with all required features—yet still fail in real-world operation. The root cause often lies not in the development team, but in quality risks that were not tightly controlled before release.
More than anyone, we understand that a critical issue after go-live doesn’t just impact the system—it directly affects user experience, revenue, and the brand reputation of both the client and the implementation partner.
That’s why at DEHA, Software Quality Assurance (SQA) is not just a final testing phase. It is a comprehensive quality control process from the very beginning, designed to ensure every release is fully ready for real-world environments.
Let’s take a closer look at how DEHA’s software quality assurance process works, including evaluation criteria and key performance indicators.
At DEHA, evaluation goes far beyond simply “no bugs means ready.” Instead, we rely on a comprehensive Quality Gate framework built on four core pillars:
This is the most fundamental criterion. QA specialists compare the final product against the original Business Requirements.
Ideal standard:
With over 10 years of experience working with Japanese clients, we understand that even minor UI issues can be considered serious.
Therefore, before release:
Japanese users place strong emphasis on stability and consistency.
Ideal standards include:
The product must deliver a sense of reliability:
Users should never feel “lost” when using the system.
The product must pass:
At the same time:
Only when all four criteria are met will QA confirm the status: “Ready for Release.”
This ensures quality is controlled by clear standards—not by deadline pressure.
Quality cannot be managed without measurement. At DEHA, SQA continuously tracks critical metrics to assess project stability.
These are core indicators of defect control effectiveness:
At DEHA, both metrics ≤ 1 are considered acceptable.
This indicates:
This is a direct measure of product “safety” when delivered to customers.
This metric reflects how many defects “leak” through quality control stages.
A strong SQA system:
Low Defect Leakage indicates:
One of the most important customer-centric metrics.
DEHA target: < 5%
Compared to the industry benchmark (5–10%), maintaining <5% shows:
This directly impacts user experience and brand reputation.
Bug Density measures defects per unit of functionality or code.
Low Bug Density indicates:
It reflects not only QA performance but also overall team capability.
DEHA’s principle: “No blind spots.”
Test Coverage measures how thoroughly requirements are validated.
Ideal target: 100% Requirements Coverage
This ensures:
High coverage improves:
Every requirement—no matter how small—is converted into test cases and executed.
No project is bug-free at the beginning. A “safe” project is one that controls and reduces defects over time.
Bug Trend tracks:
Ideal state:
This shows:
If Opened Bugs spike late in the project → release risk warning
These metrics form an integrated early warning system that helps projects:
Each release is not just a milestone—it is a validated decision backed by data.
At DEHA, SQA is not a standalone activity—it spans the entire project lifecycle.
Quality starts with requirements—not testing.
QA:
Goal:
QA defines:
All criteria are:
QA creates detailed test cases covering:
Automation is prepared where applicable for efficient regression testing.
Testing must reflect real-world conditions.
QA ensures:
This guarantees reliable testing outcomes.
QA:
Each defect:
For critical/repeated issues:
This ensures defects do not recur.
Before release or after phases:
QA:
Goal:
DEHA’s SQA ensures:
Clients receive not just a tested product but one validated through a comprehensive quality system.
The core difference of DEHA’s SQA lies in its transformation:
From a “quality verifier” → to a “co-creator of product value.”
Instead of appearing at the final stage, we:
This advantage is further strengthened by:
This enables our team to:
By combining:
DEHA’s SQA becomes a true quality assurance expert system ensuring:
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