An ASM model of concurrency in a web browser

  • Authors:
  • Vincenzo Gervasi

  • Affiliations:
  • Dipartimento di Informatica, Università di Pisa, Pisa, Italy,Faculty of Engineering and Information Technology, UTS, Sydney, Australia

  • Venue:
  • ABZ'12 Proceedings of the Third international conference on Abstract State Machines, Alloy, B, VDM, and Z
  • Year:
  • 2012

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Abstract

We define an abstract standards-compliant web browser model. The model focuses on those parts of the browser behaviour which are most relevant for the deployment and execution of web applications, such as interaction with a scripting language (here, ECMAScript), cookies, and asynchronous behaviour of the network layer, while hiding other aspects, such as page navigation and presentational issues. We use a multi-agent Abstract State Machine as our formal model, showing how the browser behaviour can be partitioned into a number of distinct components, and specifying precisely their interactions. The specification can also be used as basis to prove consistency properties of common frameworks for web applications.