ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511539

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511540

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

Decision Support Systems are information systems designed to support decision makers to solve problems mainly in semistructured problem situations. Semistructured problem situations are those where pure managerial judgment alone is not adequate, and which are not understood well enough to permit a complete, usually analytical, solution. Strategic planning is a managerial area where semistructured problems frequently exist. One of the key problems faced in strategic management is the issue of investment decisions. Investments in information systems, logistic systems, flexible production systems, corporate image, etc., are examples of complex investment problems that are difficult to quantify and analyze with traditional techniques. Logistics systems, for example, are related to most functions within the firm, beginning from the materials management and ending with deliveries to markets. In such a case, the complex, direct and indirect relationships imply that the straightforward, traditional techniques of investment analyses do not necessarily lead to the best result. We cannot convert every intangible effect into monetary gains or expenses. In addition, we also have to use such criteria as flexibility, material availability, product quality, system stability, etc. In this research we show by means of an actual case how a modern, integrated Decision Support System can support the management of intangible investments in an efficient manner. For the planning of intangible investments we have developed a set of tools where several decision aids are integrated to support the different phases of the investment planning process.

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511541

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

This paper describes a successful implementation of a computer based system for generating examination timetables at the University of Geneva. The system was designed for a ≪ Faculté ≫ with about 2 400 students taking each an average of 7 exams per exam session. Due to local considerations, many requirements and constraints are put on the timetables. This timetabling problem is large, complicated and highly combinatorial. Because of the recent growth in the student population, the manual elaboration has become an untenable challenge. On the other hand, the user does not easily accept a computer—based system. This paper describes our efforts to achieve a modelization of the problem that satisfies the user. The solution technique is based on a Tabu search algorithm. We developed a specialized data structure to improve computation time. Problem is solved in less than half an hour on a Vax 8700 computer. The systeme has replaced manual elaboration for more than six exam sessions.

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511542

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

This paper presents the possibility of using methods of multicriterional analysis for estimating and ranking pollution in certain urban and suburban zones and along the coast, based on monitoring air and sea quality. Certain parameters which define the environmental characteristics are treated as criteria to be used for the estimating and ranking by applying a group of PROMETHEE methods. In order to get a complete insight into the “behaviour” of the pollution parameters, a programme package GAIA (Geometrical Analysis for Interactive Aid) is used, which enables the geometrical presentation of criteria and makes a visual display of clustering and “two dimensional behaviour” of pollution parameters. It is also possible to follow the change of ranks for each month of the year through graphics interpretation, with the possibility of changing criteria weight. Direct interpretation of the degree of pollution on the geographical maps which is realized by using pcArc/Info software, makes possible on—line use of this system for the needs of the city authorities so that decisions on wether or not to ban swimming or reduce certain industrial activities can be made. Thus it is conceptually suitable to DSS.

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511543

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511544

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511545

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

The instructions put together below fall into three categories. The editor of the review would be grateful to authors for respecting these indications. At times, the length of this summary may attain a dozen lines. It is to be written in size 9 italic Times. An abstract in French will be joined.

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511546

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

The instructions put together below fall into three categories. The editor of thejournal of decision systemswould be grateful to authors for respecting these indications. At times, the length of this summary may attain a dozen lines. It is to be written in size 9 italic Times.

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511547

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

ISSN:1246-0125    

DOI:10.1080/12460125.1992.10511548

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor