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Table of contents:

Data Fusion

• Introduction
• The Technical Challenges
• Greater Volumes of Data
• Information Sharing
• CASE STUDY 1
• CASE STUDY 2
• CASE STUDY 3
• CASE STUDY 4
• CASE STUDY 5
• CASE STUDY 6
• Objectivity Advantages
• Trees and Networks of Objects
• Navigation & Inheritance
• Clustering and In-Memory Caching
• Concurrently Accessed Objects
• Distributed Architecture
• Data Scalability
• Continuous Availability
• Objectivity/DB
• Progran Control Challenges
• Lower Cost of Ownership
• Summary

Data Fusion - integrating complex data from multiple sources

Data Scalability

Single Logical View - Each object is uniquely represented by a 64-bit composite Object Identifier [OID]. Each component of the OID is a logical number, not a physical identifier, allowing Objectivity/DB to dynamically relocate objects to reclaim physical space quickly. Single Federated Databases can scale into the Exabyte [1 million Terabytes] range. Applications can also view multiple federations simultaneously. Groups of objects may be clustered within containers (loosely analogous to a file) that are clustered within databases. The databases are grouped within a federated database. Objects may be directly associated with other objects by using named 1:1, 1:many, many:1 or many:many links. The links may span containers and databases, allowing the creation of huge networks of objects spread across databases held on many machines. Navigation across databases is completely transparent to the application.

Mass Storage Integration - Many products have loose or single vendor integration with hierarchical mass storage devices. The Objectivity/DB remote data server automatically integrates with most standard file server products. In 1998 Objectivity pioneered the integration of a database with the High Performance Storage System (HPSS), a technology that resulted from a joint project between industry and the National Laboratories. The Objectivity Open File System (OOFS) layer integrates the Objectivity/DB remote data server with HPSS. The OOFS classes may be modified to interface with other non-standard storage devices. Customizable security (e.g. using Kerberos) can be invoked via a Generalized Security Architecture interface implemented behind the Page Server interface. The largest deployment of this technology currently holds over 750 Terabytes of objects, growing at over a Terabyte per day.