Language Features for Flexible Handling of Exceptions in Information Systems

Language Features for Flexible Handling of Exceptions in Information Systems (1985)

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by Alexander Borgida

Venue:	ACM Transactions on Database Systems
Citations:	91 - 5 self

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Datum	Value	Source
TITLE	Language Features for Flexible Handling of Exceptions in Information Systems	user correction - Legacy Corrections
AUTHOR NAME	Alexander Borgida	SVM HeaderParse 0.1
AUTHOR AFFIL	; Department of Computer Science; Rutgers University; Author's address: Department of Computer Science, Rutgers University; 1	SVM HeaderParse 0.2
AUTHOR ADDR	; New Brunswick, NJ 08903.	SVM HeaderParse 0.1
ABSTRACT	We present an exception handling facility suitable for languages used to implement database-intensive Information Systems. Such a mechanism facilitates the development and maintenance of more flexible software systems by supporting the abstraction of details concerning special or abnormal occurrences. We consider the type constraints imposed by the schema as well as various semantic integrity assertions to be normalcy conditions, and the key contribution of this work is to allow exceptions to these constraints to persist. To achieve this, we propose solutions to a range of problems, including sharing and computing with exceptional information, exception handling by users, the logic of constraints with exceptions, and implementation issues. We also illustrate the use of exception handling in dealing with null values, estimates, and measurements. Keywords and phrases: semantic integrity, violations of type constraints, exception handling, accommodating exceptions, conceptual models CR ...	user correction - Legacy Corrections
YEAR	1985	INFERENCE
VENUE	ACM Transactions on Database Systems	INFERENCE
VENUE TYPE	JOURNAL	INFERENCE
PAGES	565--603	INFERENCE
VOLUME	10	INFERENCE
CITATIONS	30 found	ParsCit 1.0