Autor(es):
Macedo, Nuno 
; Pacheco, Hugo ; Cunha, Alcino
Data: 2012
Identificador Persistente: http://hdl.handle.net/1822/24669
Origem: RepositóriUM - Universidade do Minho
Detalhes do Documento
Relations as executable specifications : taming partiality and non-determinism ...
Descrição
Comunicação publicada em "Lecture Notes in Computer Science", vol. 7560 (2012), pag. 146-161 The calculus of relations has been widely used in program specification and reasoning. It is very tempting to use such specifications as running prototypes of the desired program, but, even considering finite domains, the inherent partiality and non-determinism of relations makes this impractical and highly inefficient. To tame partiality we prescribe the usage of invariants, represented by coreflexives, to characterize the exact domains and codomains of relational specifications. Such invariants can be used as pre-condition checkers to avoid runtime errors. Moreover, we show how such invariants can be used to narrow the non-deterministic execution of relational specifications, making it viable for a relevant class of problems. In particular, we show how the proposed techniques can be applied to execute specifications of bidirectional transformations, a domain where partiality and non-determinism are paramount.
Comunicação publicada em "Lecture Notes in Computer Science", vol. 7560 (2012), pag. 146-161 The calculus of relations has been widely used in program specification and reasoning. It is very tempting to use such specifications as running prototypes of the desired program, but, even considering finite domains, the inherent partiality and non-determinism of relations makes this impractical and highly inefficient. To tame partiality we prescribe the usage of invariants, represented by coreflexives, to characterize the exact domains and codomains of relational specifications. Such invariants can be used as pre-condition checkers to avoid runtime errors. Moreover, we show how such invariants can be used to narrow the non-deterministic execution of relational specifications, making it viable for a relevant class of problems. In particular, we show how the proposed techniques can be applied to execute specifications of bidirectional transformations, a domain where partiality and non-determinism are paramount.
Tipo de Documento
Artigo
Idioma Inglês
Idioma Inglês
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