A denotational view of replicated data types
“Weak consistency” refers to a family of properties concerning the state of a distributed system. One of the key issues in their description is the way in which systems are specified. In this regard, a major advance is represented by the introduction of Replicated Data Types (rdts), in which the mea...
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| Autores principales: | , , , , |
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| Formato: | SER |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03029743_v10319LNCS_n_p138_Gadducci |
| Aporte de: |
| Sumario: | “Weak consistency” refers to a family of properties concerning the state of a distributed system. One of the key issues in their description is the way in which systems are specified. In this regard, a major advance is represented by the introduction of Replicated Data Types (rdts), in which the meaning of operators is given in terms of two relations, namely, visibility and arbitration. Concretely, a data type operation is defined as a function that maps visibility and arbitration into a return value. In this paper we recast such standard approaches into a denotational framework in which a data type is seen as a function that maps visibility into admissible arbitrations. This characterisation provides a more abstract view of RDTs that (i) highlights some of the implicit assumptions shared in operational approaches to specification; (ii) accommodates underspecification and refinement; (iii) enables a categorical presentation of RDT and the development of composition operators for specifications. © IFIP International Federation for Information Processing 2017. |
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