Inside IBM's Distributed Data Management architecture

IBM's Distributed Data Management (DDM) architecture is an element of Systems Application Architecture™ that defines an open environment for sharing data in files and relational databases. DDM is a key element of IBM's Distributed Relational Database Architecture. DDM architecture enables programs to access and manage data stored on remote systems. It is a framework for a wide range of additional application services. Influenced by the concepts of object-oriented technology, DDM architecture is designed to be object-oriented. This paper examines DDM architecture from a number of viewpoints, considering why and how it was created, what it is, and how it has evolved.