A preliminary system for the design of DBTG data structures
Communications of the ACM
An overview of recent data base research
ACM SIGMIS Database
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A mathematical methodology for data definition design is introduced. The objective of this design is to produce a data structure for a paged data base that conforms to the Data Base Task Group specifications. The design methodology takes, as input, a high level description of the data base. It then produces a data structure which is optimal over a certain class of DBTG data structures that describe the data base, in the sense that the expected page fault rate is minimized for a given set of applications and a given storage bound. The optimization takes into account such factors as (data base) set implementation techniques and applications' security requirements. The algorithm used to solve the optimization problem uses a dynamic programming approach, based on the idea of step-wise generation of undominated solutions.