An Encapsulation of a Navigable Tree Position: Theory, Specification, and Verification

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Tree Position: Theory, Specification, and Verification</title> <meta name="description" content="An Encapsulation of a Navigable Tree Position: Theory, Specification, and Verification"> <meta name="keywords" content="automation, data abstraction, maps, specification, tree, verification"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img 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publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">An Encapsulation of a Navigable Tree Position: Theory, Specification, and Verification</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nicodemus%20M.%20J.%20Mbwambo">Nicodemus M. J. Mbwambo</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Shan%20Sun"> Yu-Shan Sun</a>, <a href="https://publications.waset.org/abstracts/search?q=Murali%20Sitaraman"> Murali Sitaraman</a>, <a href="https://publications.waset.org/abstracts/search?q=Joan%20Krone"> Joan Krone</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a generic data abstraction that captures a navigable tree position. The mathematical modeling of the abstraction encapsulates the current tree position, which can be used to navigate and modify the tree. The encapsulation of the tree position in the data abstraction specification avoids the use of explicit references and aliasing, thereby simplifying verification of (imperative) client code that uses the data abstraction. To ease the tasks of such specification and verification, a general tree theory, rich with mathematical notations and results, has been developed. The paper contains an example to illustrate automated verification ramifications. With sufficient tree theory development, automated proving seems plausible even in the absence of a special-purpose tree solver. <iframe src="https://publications.waset.org/abstracts/131080.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=automation" title="automation">automation</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20abstraction" title=" data abstraction"> data abstraction</a>, <a href="https://publications.waset.org/abstracts/search?q=maps" title=" maps"> maps</a>, <a href="https://publications.waset.org/abstracts/search?q=specification" title=" specification"> specification</a>, <a href="https://publications.waset.org/abstracts/search?q=tree" title=" tree"> tree</a>, <a href="https://publications.waset.org/abstracts/search?q=verification" title=" verification"> verification</a> </p> <a 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An Encapsulation of a Navigable Tree Position: Theory, Specification, and Verification