ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511712

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511713

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

Among the tools available to the designers of Decision Support Systems (DSS) and Executive Information Systems (EIS), there are generators, ad—hoc systems, groupware and end—user products based on fourth—generation languages. Most of these tools are characterized by a logical structure based on the use of multidimensional tables. These DSS and EIS softwares permit to define the structure of the database and to manipulate it in a user—friendly fashion with an exceptionally short response time. They are based on a specific logical data model, consisting of dimension, variable and relationship concepts. Based on the OLAP technology (One Line Analytical Processing), these tools allow to express multidimensional views using the client—server architecture. Starting from a real situation, the designers of DSS and EIS often have difficulty in defining directly the dimensions, variables and relationships. To solve this problem, we suggest to proceed in two steps. The first step consists in modelling at the conceptual level, using the extended entity—relationship approach. The second step aims at moving to the logical level, by means of transformation rules. To this end, we present an algorithm which transforms a conceptual schema into a logical schema based on the objects of the multidimensional model. We illustrate the use of the transformation rules by means of an example and present the tool associated with the method.

ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511714

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

Computer-based support for decision-making, with the use of Decision Support Systems (DSS), has focused mainly on primary decision processes, i.e. data and model manipulation, and failed to take explicitly into account the need to model the secondary decision processes, i.e. support on how to decide about the use of specific data and models. The main premise of the present paper is that effective, intelligent support of the secondary decision processes could be developed by exploiting the possibilities of coupling DSS and expert system (ES) approaches. Although such an integration has been flourishing in the literature, with the advent of Intelligent Decision Support Systems (IDSS), no efforts have been made to examine its potential for enhancing the support to secondary decision processes. The paper presents an IDSS architecture that models in a systematic way the decision—making process and illustrates the use of the architecture for the development of an intelligent system for business forecasting.

ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511715

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

The Department of the Army must provide its personnel with acceptable housing at minimum cost within the vicinity of military installations. To achieve these housing objectives, the Army often must enter into agreements for the construction of housing or for the longterm leasing of existing housing. A decision support system, called HANS, has been developed to project the amount of construction or the number of leases that must be arranged. This paper describes an executive information system (EIS) enhancement that helps Army managers to obtain pertinent information for, and display reports from, the HANS analyses and evaluations. It also overviews the benefits, challenges, and limitations of the enhanced system and the lessons to draw from the case study.

ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511716

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

The developping countries are facing many urban problems caracterized by the proliferation of spontaneous habitat in quarters. This paper describes an approach of intervention in urban sector in order to improve the knowledge and the management of characteristics parameters (site, land, building, road, network, equipement) of a quarter. According to the complexity of decision in town management and the diversity of datas to manage, we propose a computer—based solution. It frees the different actors of urban management from the fastidious work of data collection, data organization and manipulation before any decision making. In this paper, a first step is realised concerning the data storage and the judicious presentation of statistical datas to the decsion makers. The system to implement allows through its flexibility and its interactivity to help them in the decision making process. This approach is closed to a real DSS (decision support system): the datas are formated in a way that can improve the decision making, the choice of the final action depends on the way the decision maker percieves the quarter and his personal capability to solve problems and conflits.

ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511717

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511718

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511719

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

ISSN:1246-0125    

DOI:10.1080/12460125.1997.10511720

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor