See also: http://www.versant.com
Versant is a client/server object database management system (ODBMS) targeted at distributed, multi-user applications. Versant runs on UNIX and PC platforms. Versant provides transparent language interfaces from object-oriented programming languages such as C++ and Smalltalk. Versant also supports a C API.
Versant is built with an object-level architecture, which means that operations are generally performed on the object (or group thereof) level. Key Versant features include:
Performance -----------
* Object-level locking for fine granularity concurrency control * Server-based query processing to reduce network I/O * Dual caching to speed warm traversals * Dynamic space reclamation and reuse
Distribution ------------
* Immutable, logical object identifiers for data integrity * Object migration (transparent relocation across nodes) * Transparent cross-node references (distributed db) * Automatic two-phase commit
Other -----
* Schema evolution (online via lazy updates) * Standard workgroup features (e.g., versioning, checkin/out) * Detachable, personal databases * DBA utilities
Provide object database management system and development tools for multi-user, distributed environments. Supports C++ and Smalltalk access.
Argos is their application development environment product. It's built on ParcPlace VisualWorks.
Versant Object Technology Corporation 1380 Willow Road Menlo Park, CA 94025 U.S.A.
Voice: (415) 329-7500 Fax: (415) 325-2380
3872 Larkspur CourtLoveland, CO 80538 U.S.A.
Voice: (303) 593-9871 Fax: (303) 593-9874
Email: info@versant.com Web: http://www.versant.com
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