关键词: 指挥决策支持系统, 抽取转换加载, 公共仓库元模型, 元知识库, 交互式

Abstract: A special ETL subassembly is designed for command Decision-making Support System（DSS），and then it puts forward a construction model of “ETL + Meta-knowledge Base + interactive environment”.It is modeled based on CWM to optimize the metadata extraction of ETL and reduce development cycles.Data transformation which based on domain knowledge and interactive，extensible environment brings advantages，that increase efficiency for data transformation and realize complicated transformation logic，then it can give references for other DSS to construct their own ETL subassembly.

Key words: Weapon-Target Adapted Decision-making Support System（WTADSS）, Data Extraction, Transformation and Loading（ETL）, Common Warehouse Metamodel（CWM）, meta-knowledge base, interactive environment