Updated: 04/26/2017 by Computer Hope

Polyinstantiation is a computing technique in which multiple instances of a shared resource are created to prevent any single user or process from contaminating the data required by others. In an operating system, it may be used to create multiple instances of virtual memory or a temporary directory to maintain system security when the resource accessed by multiple users. It is used in relational database management systems, where a single relation may be mapped to multiple instances of a row of data to assist users with different levels of security.

Database, Security terms