In this paper we describe the interface of the application support system ASS which will be integrated as a top level interface into the distributed DBMS POREL. We introduce the application description language ADL, which can be used for the description of applications and of the input/output data of application operators, and we describe the interface which is available for specifying these ADL descriptions. A dialog support is presented for the specification of the input data of an operator. Thus ASS can support a wide range of interactions between the user and a data base system. In addition we investigate the generation of operator occurrences from operator skeletons which provide a flexible connection of application operators to the data base system.

A dialogue interface for data base applications

In this paper we describe some features of the decision support system which is currently being built on top of the distributed DBMS POREL. Based on a short description of the different interfaces of POREL we investigate the relationships between the decision support system and POREL. We discuss the execution of operators of the decision support system and the specification of input data for operators. In addition, we describe the possible structures of so-called complex operators.

Functional Specification Of A Decision Support System

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Functional Specification Of A Decision Support System