Access Method - IMS

IMS

The IBM Information Management System (IMS) uses the term "access method" to refer to its methods for manipulating "segments in a database record." These are: Generalized Sequential Access Method (GSAM), Hierarchical Direct Access Method (HDAM), Hierarchical Indexed Direct Access Method (HIDAM), Hierarchical Indexed Sequential Access Method (HISAM), Hierarchical Sequential Access Method (HSAM), Partitioned Hierarchical Direct Access Method (PHDAM), Partitioned Hierarchical Indexed Direct Access Method (PHIDAM), Partitioned Secondary Index (PSIMDEX), Simple Hierarchical Sequential Access Method (SHSAM), and Simple Hierarchical Indexed Sequential Access Method (SHISAM). This is a different use of the term from the other access methods mentioned in this article.