Hans Hermann Brüggemann

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A new authorization model for object-oriented databases. 16 comprehensive design environment for information systems with high security requirements. Moreover, the level of trust in the security features of the database can be fine-tuned based on the requirements of the application by using more or less restrictive trigger structures. The Approach of(More)
In a universal relation view queries are expressed without mentioning relation names and they are evaluated by using so-called window functions. We discuss several design rules for database schemes suited for universal relation views and formalize one of them, the One Flavor Assumption. Intuitively the One Flavor Assumption says that the real world(More)