Orthogonal Persistence as an Implementation Platform for Software Development Environments

Software development environments need to maintain representations of software entities and the relationships between them. Various supporting software platforms have been used to provide the storage for these entities and relationships, including file systems and databases. This paper describes how a persistent object system may be used as such an implementation platform. It shares many of the advantages of object oriented databases, with the additional ability to model first-class code values, and to introduce new type descriptions dynamically