A career development program for information systems practitioners currently being used widely by employers in the UK and now becoming available in North America is described. The program, called the Professional Deve...
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A career development program for information systems practitioners currently being used widely by employers in the UK and now becoming available in North America is described. The program, called the Professional Development Scheme (PDS), was developed by the British computer Society to address the lack of structure and quality control generally present in the way computing professionals were being trained. The performance standards underpinning the program (The British computer Society Industry Structure Model) have recently been thoroughly updated and now include material specific to the development, maintenance, and management of software for safety-critical applications. The use of the program for this purpose and potential developments in the field of training and registration for safety-critical software specialists are discussed.
The DoD-STD-2167 development process is addressed. Each requirement is discussed, and those areas that were automated and those areas in which automation was not applicable are identified. The discussion includes the ...
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ISBN:
(纸本)0879425768
The DoD-STD-2167 development process is addressed. Each requirement is discussed, and those areas that were automated and those areas in which automation was not applicable are identified. The discussion includes the general methodologies involved in the automation process. In each of these areas any tradeoffs driven by automating that particular task are identified.
The authors present a self-reconfigurable algorithm for a hierarchically redundant WSI (wafer scale integration) sorting network. This WSI sorting network consists of a mesh interconnection and a modified bitonic sort...
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ISBN:
(纸本)0818691263
The authors present a self-reconfigurable algorithm for a hierarchically redundant WSI (wafer scale integration) sorting network. This WSI sorting network consists of a mesh interconnection and a modified bitonic sorter with spare cells. The fault tolerance performance of the WSI sorting network using the self-reconfigurable algorithm is discussed. It is confirmed that the hierarchical redundancy of the WSI sorting network achieves a higher fault tolerance performance than a nonhierarchical network and is suitable for both clustered faults and random faults.
A randomized technique, called dynamic shuffling, is given for multidimensional dynamic search. This technique, when specialized to the problem of searching in sorted lists, yields the previously known randomized bina...
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ISBN:
(纸本)0818624450
A randomized technique, called dynamic shuffling, is given for multidimensional dynamic search. This technique, when specialized to the problem of searching in sorted lists, yields the previously known randomized binary trees (treaps). The crux of the technique is a multidimensional generalization of the rotation operation on binary search trees. Simultaneously, it is shown how to dynamize the randomized incremental algorithms so as to allow additions as well as deletions of objects. The techniques are based on remembering the history of the actual or imaginary sequence of updates. The techniques are applied to several problems in computational geometry.
In January 1991 the National Center for Health Statistics (NCHS) distributed their first CD-ROM. On this CD-ROM, the NCHS released 1987 data from the National Health Interview Survey (NHIS). Before the final version o...
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ISBN:
(纸本)0780304829
In January 1991 the National Center for Health Statistics (NCHS) distributed their first CD-ROM. On this CD-ROM, the NCHS released 1987 data from the National Health Interview Survey (NHIS). Before the final version of the 1987 NHIS CD-ROM was distributed, an abbreviated CD-ROM was beta tested. The author presents some of the information obtained from the beta test, findings that focus on developing the user interfaces within the constraints of using a CD-ROM for statistics on a desktop computer. Findings from the beta test indicate that users benefit from five different interfaces that can be used in any sequence and with any frequency: paper documentation, online reference documents, dialogue boxes, help screens, and simultaneous translation of values and codes.
The author discusses a software development project employing structured methodology to closely coordinate the development of both the software application and the user documentation. This project also employed the ex...
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ISBN:
(纸本)0780304829
The author discusses a software development project employing structured methodology to closely coordinate the development of both the software application and the user documentation. This project also employed the expertise of documentation personnel in addressing user-interface questions. Specifically, SCS (Soil Conservation Service) mandated that all future agency software development projects would follow the STRADIS system-life-cycle methodology. STRADIS (structured analysis, design and implementation of information systems) is intended to decrease the risk of wasting money on system development, save time on projects by employing a standard approach, and give management a standard way to assess progress and determine where resources are used. In the fall of 1989, the author became involved with a team working to develop a data communication application for CAMPS (computer-Assisted Management and Planning System) that would allow the SCS to share information with another federal agency, the Agricultural Stabilization and Conservation Service (ASCS). This development project was to apply STRADIS methodology.
The Interactive Electronic Technical Specification (IETS) research project provides a paperless environment for system development documentation including requirements, specifications, and design documents, with inter...
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ISBN:
(纸本)0879425768
The Interactive Electronic Technical Specification (IETS) research project provides a paperless environment for system development documentation including requirements, specifications, and design documents, with interactive hypermedia access to needed information. IETS also will provide automated requirements and system behavior. Elements and features of IETS are presented. A description is presented of the General Dynamics IETS approach, and its future role in advanced maintenance and diagnostic systems development.
The authors describe a novel approach to automatic generation of efficient parallel programs from sequential blocked linear algebra programs. By exploiting recent progress in fine-grain parallel architectures such as ...
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ISBN:
(纸本)0818621583
The authors describe a novel approach to automatic generation of efficient parallel programs from sequential blocked linear algebra programs. By exploiting recent progress in fine-grain parallel architectures such as iWarp and in libraries based on matrix-matrix block operations such as LAPACK, the approach is expected to be effective in parallelizing a large class of linear algebra computations. An implementation of LAPACK on iWarp is under development. In the implementation, block routines are executed on the iWarP processor array using highly parallel systolic algorithms. Matrices are distributed over the array in a way that allows parallel block routines to be used wherever the original program calls a sequential block routine. This data distribution scheme significantly simplifies the process of parallelization and, as a result, efficient parallel versions of programs can be generated automatically. The authors discuss experiences and performance results from the preliminary implementation, and present the design of a fully automatic system.
Based on a self-organized, probabilistic neural network (PNN) paradigm, a parallel network can be used to sort data parameters into classes with high sorting accuracy and low fragmentation. The capabilities of the sor...
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ISBN:
(纸本)0780302273
Based on a self-organized, probabilistic neural network (PNN) paradigm, a parallel network can be used to sort data parameters into classes with high sorting accuracy and low fragmentation. The capabilities of the sorter, as applied to ESM (electronic support measure) pulse-data sorting, are shown. The PNN implements the statistical Bayesian strategy by computing a joint probability density over all input data parameters to match a group of candidate data classes. The sorting is accomplished by assigning the inputs to the most likely group with highest probability density estimate. Based on test data from an ESM system, the PNN has shown significant improvement over conventional rule-based techniques. The parallel computer architecture of PNN is well-suited for VLSI chip implementation. An 80,000 gate semicustom chip design concept is described.
NETwork project presents an advanced approach towards problem solving in real-time applications. The studies we have made and the operating prototype provide interesting results and are considered as an encouragement ...
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ISBN:
(纸本)0852965265
NETwork project presents an advanced approach towards problem solving in real-time applications. The studies we have made and the operating prototype provide interesting results and are considered as an encouragement for future work. Tools Manager is viewed as an original approach to the problem of specification and control of major software projects and is especially interesting due to its general aspects.
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