An object-oriented, distributed database programming language. Its most interesting feature is the presence of system-level version control, which is used to support schema evolution, system-level versioning (as a way of improving concurrency), and objects with their own notion of history. System consists of programming language (PAL) and distributed persistent object manager.
REFERENCES: Anders Bjornerstedt and Stefan Britts. "AVANCE: An Object Management System". Proceedings of OOPSLA88.
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