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  • 1
    Electronic Resource
    Electronic Resource
    The use of statistical process control in batch processed PVC compounding. Part II (1992)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 14 (1992), S. 161-165 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This paper describes various SPC methods that can be used to promote quality improvement, resulting in increased productivity and lower costs. By concentrating on preventative systems rather than detective systems, the operation has increased productivity by 5.0% over a period of two years with relatively little capital investment. This has resulted in an additional capacity of 650,000 kg per year.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730140310
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The use of statistical process control in batch processed PVC compounding (1991)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 13 (1991), S. 165-168 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This paper describes the main Statistical Process Control (SPC) method that is being used by Canada Wire and Cable in the manufacture of their flexible PVC compounds. It outlines the benefits that are being realized by following a systematic approach towards using control charts. By employing SPC as a quality improvement tool, the operation has reduced its costs by an estimated $180,000 per year.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730130312
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    Paper (German National Licenses)
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  • 3
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    A rule-based software test data generator (1991)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Rule-based software test data generation is proposed as an alternative to either path/predicate analysis or random data generation. A prototype rule-based test data generator for Ada programs is constructed and compared to a random test data generator. Four Ada procedures are used in the comparison. Approximately 2000 rule-based test cases and 100,000 randomly generated test cases are automatically generated and executed. The success of the two methods is compared using standard coverage metrics. Simple statistical tests showing that even the primitive rule-based test data generation prototype is significantly better than random data generation are performed. This result demonstrates that rule-based test data generation is feasible and shows great promise in assisting test engineers, especially when the rule base is developed further.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: IEEE Transactions on Knowledge and Data Engineering (ISSN 1041-4347); 3; 108-117
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    QUEST/Ada (query utility environment for software testing of Ada: The development of a program analysis environment for Ada, task 1, phase 3 (1991)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The results of research and development efforts of the first six months of Task 1, Phase 3 of the project are presented. The goals of Phase 3 are: (1) to further refine the rule base and complete the comparative rule base evaluation; (2) to implement and evaluate a concurrency testing prototype; (3) to convert the complete (unit-level and concurrency) testing prototype to a workstation environment; and (4) to provide a prototype development document to facilitate the transfer of research technology to a working environment. These goals were partially met and the results are summarized.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-187983 , NAS 1.26:187983
    Format: application/pdf
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  • 5
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    QUEST/Ada (Query Utility Environment for Software Testing) of Ada: The development of a program analysis environment for Ada (1988)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A history of the Query Utility Environment for Software Testing (QUEST)/Ada is presented. A fairly comprehensive literature review which is targeted toward issues of Ada testing is given. The definition of the system structure and the high level interfaces are then presented. The design of the three major components is described. The QUEST/Ada IORL System Specifications to this point in time are included in the Appendix. A paper is also included in the appendix which gives statistical evidence of the validity of the test case generation approach which is being integrated into QUEST/Ada.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-184597 , NAS 1.26:184597
    Format: application/pdf
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  • 6
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    QUEST/Ada: Query utility environment for software testing of Ada (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Results of research and development efforts are presented for Task 1, Phase 2 of a general project entitled, The Development of a Program Analysis Environment for Ada. A prototype of the QUEST/Ada system was developed to collect data to determine the effectiveness of the rule-based testing paradigm. The prototype consists of five parts: the test data generator, the parser/scanner, the test coverage analyzer, a symbolic evaluator, and a data management facility, known as the Librarian. These components are discussed at length. Also presented is an experimental design for the evaluations, an overview of the project, and a schedule for its completion.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-186121 , NAS 1.26:186121
    Format: application/pdf
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  • 7
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    The development of a program analysis environment for Ada (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A unit level, Ada software module testing system, called Query Utility Environment for Software Testing of Ada (QUEST/Ada), is described. The project calls for the design and development of a prototype system. QUEST/Ada design began with a definition of the overall system structure and a description of component dependencies. The project team was divided into three groups to resolve the preliminary designs of the parser/scanner: the test data generator, and the test coverage analyzer. The Phase 1 report is a working document from which the system documentation will evolve. It provides history, a guide to report sections, a literature review, the definition of the system structure and high level interfaces, descriptions of the prototype scope, the three major components, and the plan for the remainder of the project. The appendices include specifications, statistics, two papers derived from the current research, a preliminary users' manual, and the proposal and work plan for Phase 2.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-185860 , NAS 1.26:185860
    Format: application/pdf
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  • 8
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    QUEST/Ada (Query Utility Environment for Software Testing of Ada): The development of a prgram analysis environment for Ada, task 1, phase 2 (1990)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The results of research and development efforts are described for Task one, Phase two of a general project entitled The Development of a Program Analysis Environment for Ada. The scope of this task includes the design and development of a prototype system for testing Ada software modules at the unit level. The system is called Query Utility Environment for Software Testing of Ada (QUEST/Ada). The prototype for condition coverage provides a platform that implements expert system interaction with program testing. The expert system can modify data in the instrument source code in order to achieve coverage goals. Given this initial prototype, it is possible to evaluate the rule base in order to develop improved rules for test case generation. The goals of Phase two are the following: (1) to continue to develop and improve the current user interface to support the other goals of this research effort (i.e., those related to improved testing efficiency and increased code reliable); (2) to develop and empirically evaluate a succession of alternative rule bases for the test case generator such that the expert system achieves coverage in a more efficient manner; and (3) to extend the concepts of the current test environment to address the issues of Ada concurrency.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-186939 , NAS 1.26:186939
    Format: application/pdf
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