GRAPHICAL DISPLAY OF COMPLEX INFORMATION WITHIN A PROLOG DEBUGGER

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dc.contributor.authorDewar, Alan D.eng
dc.contributor.authorCleary, John G.eng
dc.date.accessioned2008-02-27T16:56:05Z
dc.date.available2008-02-27T16:56:05Z
dc.date.computerscience1999-05-27eng
dc.date.issued1985-12-01eng
dc.description.abstractAn interactive Prolog debugger, DEWLAP, is described. Output from the debugger is in the form of graphical displays of both the derivation tree and the parameters to procedure calls. The major advantage of such displays is that they allow important information to be displayed prominently and unimportant information to be shrunk so that it is accessible but not distracting. Other advantages include the following: the control flow in Prolog is clearly shown; the control context of a particular call is readily determined; it is easy to find out whether two uninstantiated variables are bound together; and very fine control is possible over debugging and display options. A high-level graphics language is provided to allow the user to tailor the graphical display of data structures to particular applications. A number of issues raised by the need to update such displays efficiently and to control their perceived complexity are addressed. The DEWLAP system is implemented in Prolog on relatively standard hardware with a central processor running Unix and remote workstations with bitmapped displays and mice.eng
dc.description.notesWe are currently acquiring citations for the work deposited into this collection. We recognize the distribution rights of this item may have been assigned to another entity, other than the author(s) of the work.If you can provide the citation for this work or you think you own the distribution rights to this work please contact the Institutional Repository Administrator at digitize@ucalgary.caeng
dc.identifier.department1985-224-37eng
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/30544
dc.identifier.urihttp://hdl.handle.net/1880/45815
dc.language.isoEngeng
dc.publisher.corporateUniversity of Calgaryeng
dc.publisher.facultyScienceeng
dc.subjectComputer Scienceeng
dc.titleGRAPHICAL DISPLAY OF COMPLEX INFORMATION WITHIN A PROLOG DEBUGGEReng
dc.typeunknown
thesis.degree.disciplineComputer Scienceeng
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