BestHub
Sign in
Tencent Cloud Developer
Tencent Cloud Developer
Aug 17, 2021 · Backend Development

Design and Implementation of a Calculation DSL and Engine

The article presents a domain‑specific language that mimics Excel formulas, a stack‑based parser and recursive engine for evaluating calculations, and a multi‑layer architecture—including a dynamic priority scheduler—to efficiently resolve field dependencies, improve maintainability, and enable monitoring across large data systems.

Backend DevelopmentCalculation EngineDSL
0 likes · 11 min read
Design and Implementation of a Calculation DSL and Engine
Meituan Technology Team
Meituan Technology Team
Mar 15, 2018 · Backend Development

Hermes Performance System: Architecture and Implementation for O2O Business

The article presents Hermes, Meituan’s O2O performance management platform for travel, detailing its six‑module, four‑engine architecture—including data, incentive, rule, calculation, and scheduling engines—while highlighting technical innovations such as two‑level caching, work‑stealing producer‑consumer processing, Map‑Reduce‑style calculations, and future AI‑driven enhancements.

BI ToolsCalculation EngineO2O business
0 likes · 16 min read
Hermes Performance System: Architecture and Implementation for O2O Business