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Jemima Rossmorris, Susan Stepney
Requirements as conjectures: intuitive DVD menu navigation.

In ZB2005: Fourth International Conference of B and Z Users, Guildford, UK, April 2005 . LNCS 3455, pp 172-186. Springer, 2005.

Abstract:

We use Z to capture the requirements for an 'intuitive' menu navigation system as a series of conjectures that should hold. We use those requirements to investigate potential algorithms. The Z formalisation enables the somewhat fuzzy requirement of 'being intuitive' to be captured precisely, analysed, and critiqued, leading to possibly new requirements, and more intuitive algorithms.

Full paper : PDF 284K 

@inproceedings(SS-ZB-05b,
  author = "Jemima Rossmorris and Susan Stepney",
  title = "Requirements as conjectures: intuitive {DVD} menu navigation",
  pages = "172-186",
  crossref = "ZB-05"
)

@proceedings(ZB-05,
  title = "ZB2005: Fourth International Conference of B and Z Users,
           Guildford, UK, April 2005",
  booktitle = "ZB2005: Fourth International Conference of B and Z Users,
           Guildford, UK, April 2005",
  editor = "Helen Treharne and Steve King and Martin Henson and Steve Schneider",
  series = "LNCS",
  volume = 3455,
  publisher = "Springer",
  year = 2005
)