Redundancy in Data Structures: Improving Software Fault Tolerance

The increasing cost of computer system failure has stimulated interest in improving software reliability. One way to do this is by adding redundant structural data to data structures. Such redundancy can be used to detect and correct (structural) errors in instances of a data structure. The intuitive approach of this paper, which makes heavy use of examples, is complemented by the more formal development of the companion paper, "Redundancy in Data Structures: Some Theoretical Results."