Multiplicity (software)

Type来表示。 关系类型用degree (arity)和multiplicity刻画。ADO.NET Entity Framework支持二元双向关系，multiplicity包括一对一、一对多、多对多。实体间的关系是有名的，称为Role。定义了关系的目的。

information about trojans and malware（页面存档备份，存于互联网档案馆） Windows TCP/IP Ephemeral, Reserved, and Blocked Port Behavior Known TCP/UDP ports used by Apple software

Hestroffer, D.; Le Mignant, D.; de Pater, I.; et al. Shape, size, and multiplicity of main-belt asteroids: I. Keck Adaptive Optics survey. Icarus. November