Rethinking Mobile Software Quality: From Bug Reduction to End‑to‑End Service Excellence

Yong Ge, a senior expert in Baidu's Quality Department focusing on mobile product online quality monitoring, evaluation, gray‑release techniques, and closed‑loop capability building, shares his insights on improving product quality through data‑driven signals.

Historically, software quality discussions centered on classic engineering models such as CMM/CMMI, targeting B2B enterprise customers; today, the focus has shifted to rapid iteration and user experience for B2C consumer apps.

The explosive growth of mobile internet has turned smartphones into the primary platform for daily tasks—searching travel guides, booking flights, navigating routes, sharing photos—making mobile services inseparable from work and life.

Because mobile products now permeate every aspect of users' routines, guaranteeing their quality requires a fresh perspective that goes beyond traditional bug fixing.

From a QA engineer’s viewpoint, quality encompasses both the internal effort to reduce program bugs and the external, user‑perceived experience of stable, reliable services.

From the user’s perspective, quality is defined by the tangible experience of the product; a good user experience and stable service essentially constitute the entire perception of quality.

Bug reduction is the most basic quality requirement. Rapid‑iteration development and continuous integration accelerate delivery, but diverse hardware and software environments on users' phones create new challenges for minimizing app‑side bugs, while backend services also need robust bug‑prevention mechanisms.

Service quality is an end‑to‑end concept. From app launch, login, to completing a service request, the availability and stability of online services directly affect user perception; QA engineers can leverage business and technical knowledge to implement real‑time monitoring and protection.

Product quality reflects the ability to satisfy user scenarios. Evaluating whether a product meets user needs and expectations is the ultimate measure; QA teams should use feedback, behavior analysis, competitor benchmarking, and crowd‑testing to continuously identify and improve user experience issues.

In different development stages, mobile internet products impose varying quality demands on QA teams, requiring a continuous balance among bug reduction, service reliability, and scenario‑driven product excellence to safeguard product success.