| EPSRC Reference: |
GR/G52975/01 |
| Title: |
DECISION SUPPORTED DATA CORRESPONDENCES FOR A COMPUTER AIDED JSD ENVIROMENT |
| Principal Investigator: |
Layzell, Professor PJ |
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| Department: |
Computation |
| Organisation: |
UMIST |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
07 October 1991 |
Ends: |
06 April 1995 |
Value (£): |
136,953
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Summary on Grant Application Form |
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1) To formalise the rules for identifying possible data structure correspondences.2) To define mechanisms for the use of domain knowledge in selecting actual correspondences.3) To provide a support environment for program design using 1) and 2).Progress:The CASCADE project (Computer Aided Systems Capture Analysis and Design Environment) is a research and development program whose objective is the provision of a computer aided environment for the Jackson method. The primary aim of the project is the provision of support to a vital stage at the heart of the Jackson approaches, a phase which lacks the rigour required for contemporary systems development; the stage is known as the 'correspondence phase' of development. In order to achieve the objectives of the project, the several areas of development have been undertaken. Firstly, a detailed solution to the problem of correspondence has been provided in a Methods Manual. This contains a series of formal structural rules for corresponding data structures. Secondly, a suite of design and implementation metrics for Jackson hierarchy and network diagrams have been developed. It is intended that these metrics will aid the software engineer in the identification of complexity and thus avoid any potential structural correspondence problems. Finally, the toolkit is built upon a collection of OSF/Motif widgets called Gizmo. An OSF/Motid is a graphical construct such as a window, button, or slide bar, which can be combined to created complex, graphical programs by application programmers. Gizmo enables the encapsulation of all the various functions and aspects of the CASCADE tool set. There is a manageable amount of programming code which conforms to standards imposed by the CASCADE project, thus making extensions and alterations to the tool set a less demanding task. Gizmo allows the tool set to be well integrated, easy to use, consistent and effective. The simplicity of Gizmo enables the user to interact in an intuitive way with low response times, thereby increasing efficiency.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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