Object-oriented Database System Evaluation And Testing Technology

Object-oriented database as the third-generation database,which has the merit that the first two generation of databases are unable to compare.It satisfies the complex data structure as well as the mass memory need.It is foundation of the new database such as multimedia databases, the spatial databases, the deductive database, the project database . However, the object-oriented database has not be acceptted by the public as expact.The one reason is that the relations database mature application strong trend at the same time.The other is that the object-oriented database lacks the unified standard as the relations database , including connection, appraisal criterion and test criteria and so on ,and this is main problem which restricts the object-oriented object database popularize.This topic associate with a actual project, studies the object-oriented database the appraisal system and the test criteria.First, we study the object-oriented database's basic concept and the technology. And we detailed study objects, classes, object identifier and some other basic concepts; on the basic relationships between objects such as assembly, inheritance are in-depth discussion.And then discussed the various evaluation models, and the benchmark model in which a detailed description. On thd bechmark model we are discussed in detail a variety of common evaluation benchmark . Highlighted measurement based OO7 benchmark database. Pointed out the inadequacy of existing benchmarks and, based on the actual application needs to improve it put forward its evaluation program.The last, combined with a pure object-oriented database product db4o carries on the analysis, establishes the object-oriented database the evaluating indicator system. And through opens the source database appraisal software PolePostion to carry on to db4o comparison tests, and proving the evaluating indicator system.