摘要:

AbstractThis paper makes some observations about the applicability of iterative development for system implementation. After a general discussion of the software process, the types of projects suitable for this approach are identified. A system designed to support the iterative development method is then briefly examined, and a case study of its use is presented. Conclusions about the process are drawn, and some research issues regarding productivity are defined.

ISSN:0038-0644    

DOI:10.1002/spe.4380160602

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY

摘要:

AbstractThis paper describes the integration of initially one, and later a second, ICL Distributed Array Processor (DAP) into a dual ICL 2972 installation running the Edinburgh Multi‐Access System (EMAS). The alterations made to each level of the operating system are briefly described, along with the methods for mounting some of the relevant ICL DAP compiler software. Software enhancements to enable multi‐programming of the DAP and a locally designed method for DAP data area expansion are also described. A brief résumé of the user facilities available is included, along with operational policies and some utilization fi

ISSN:0038-0644    

DOI:10.1002/spe.4380160603

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY

摘要:

AbstractThis paper describes the integration of two ICL Distributed Array Processors (DAPs) into a dual ICL 2976 configuration running the Edinburgh Multi‐Access System (EMAS). The principles underlying the general multi‐access service are not compromised; special scheduling arrangements provide effective control and use of the DAP resource while allowing multi‐user access to the DAPs for DAP program develo

ISSN:0038-0644    

DOI:10.1002/spe.4380160604

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY

摘要:

AbstractThis paper presents an extension of Pascal with string pattern matching. Pattern definitions are built using six basic operations: alternation, concatenation, immediate value assignment, intersection, difference and complement. The last three have not been previously implemented and they increase the expressive power beyond context‐free languages. The pattern matching actions are augmented with three options: trace, prefix and suffix. Comparisons with a SNOBOL4 implementation are also presented. This experiment demonstrates that Pascal with pattern matching is a useful tool for string processing application

ISSN:0038-0644    

DOI:10.1002/spe.4380160605

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY

摘要:

AbstractA computer system for managing error prone and complex time‐series data is described. The system processes statistics on the catches and fishing operations of fishermen operating in New Zealand waters. These statistics are used primarily for fisheries management and, for this purpose, many years of data may be required. Errors in the data can seriously compromise management and must be weeded out as far as possible.The system is organized around four groups of files: an input file in which data are held temporarily for error checking and correction; a master file which provides medium‐term storage for the basic data; derived from this, several summary files tailored to the needs of different user groups; and, lastly, archival files in which the basic data are stored in the long term.The most significant feature of the system is providing effective and comprehensive error detection and correction, and in this is has proved most success

ISSN:0038-0644    

DOI:10.1002/spe.4380160606

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY

摘要:

AbstractA simple FORTRAN procedure for drawing curves defined in terms of recursion is shown. Examples of its use are given, and the use of parameters for identification of the curves is demonstrated.

ISSN:0038-0644    

DOI:10.1002/spe.4380160607

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY

摘要:

AbstractThis paper describes four algorithms of varying complexity used for pattern matching, and investigates their behaviour. The algorithms are tested using patterns of varying length from several alphabets. It is concluded that although there is no overall ‘best’ algorithm, the more complex algorithms are worth considering as they are generally more efficient in terms of number of comparisons made and execution t

ISSN:0038-0644    

DOI:10.1002/spe.4380160608

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY

ISSN:0038-0644    

DOI:10.1002/spe.4380160609

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY

ISSN:0038-0644    

DOI:10.1002/spe.4380160601

出版商:John Wiley&Sons, Ltd.    

年代:1986

数据来源: WILEY