This article presents the motivation, design principles, architecture, metric system, and results of a data‑warehouse evaluation framework that quantifies efficiency, quality, cost, and model health to drive systematic governance and continuous improvement across the organization.
This article details the JD.com delivery review system's business scenarios, architectural evolution from a MySQL‑based design to a diversified storage stack using HBase, Redis, Elasticsearch and TiDB, and discusses the performance challenges, solutions, and future outlook for scalable, high‑availability data management.
The article details Youku’s effort to build a test‑effectiveness evaluation system for its client by prioritizing data‑driven code‑coverage metrics, comparing JaCoCo with an internal tool, outlining the native class‑loading architecture, Python‑based analysis pipeline, achieved coverage insights, and plans to expand automation and visualization across modules.
This article explains what decision‑type products are, outlines their evolution stages, and details the essential design roadmap—including domain modeling, data value extraction, process standardization, system integration, and building a sustainable decision‑feedback loop—to help product teams create automated, data‑driven solutions that continuously improve business outcomes.
This article describes how Meituan's delivery team built a comprehensive A/B testing evaluation platform, covering the motivation for a robust assessment framework, the architecture of the platform with three functional modules, the statistical methods for reliable experiment design, and the practical implementation details that enable data‑driven operational decisions.
The article details Meituan Delivery’s A/B testing platform and evaluation system, explaining its closed‑loop design, multi‑strategy traffic allocation with AA grouping, comprehensive metric hierarchy, statistical rigor, data integration, and implementation architecture, and outlines future tools for traffic‑volume recommendation.
