基于案例推理的教学案例知识管理系统的设计

随着案例教学的研究成为我国教育的一个热点,与此同时,教学案例的管理问题被提上日程。文章阐述了利用案例推理技术（case-base Reasoning）,设计支持教师进行教学案例研究的平台——基于CBR的教学案例知识管理系统。最大限度地方便教师获取他们所需的教学案例知识。     

A feature-based fixture design methodology for the manufacturing of aircraft structural parts

In fixture design for the manufacturing of aircraft structural parts, there are various challenges and serious problems in industry, such as difficulty in design knowledge capture and reuse, and the arbitrary or non-standard nature of design, which influence the efficiency and quality of fixture design. This paper proposes a feature-based fixture design methodology in which previous fixture design cases and design rules are described in association with features and thus the design knowledge is integrated with geometric information of aircraft structural parts, which are the main concern of this project. In this methodology, machining features of the structural parts and their associated attributes are identified by feature recognition technique from the 3 dimensional (3D) part models defined based on model-based definition (MBD) technique. The feature-based part information models are then established and are used to retrieve previous fixture design cases and design rules stored in the knowledge base. Fixture designers will choose the appropriate retrieved design cases as the starting point for new fixture design or use previous designs to assess his/her current design. In this way the process of new fixture design can be improved. In the current stage of the research, a prototype feature-based fixture design system based on CATIA for the manufacturing of aircraft structural parts has been developed and used by a large airplane manufacturer.     

How to take into account general and contextual knowledge for interactive aiding design: Towards the coupling of CSP and CBR approaches

The goal of this paper is to show how it is possible to support design decisions with two different tools relying on two kinds of knowledge: case-based reasoning operating with contextual knowledge embodied in past cases and constraint filtering that operates with general knowledge formalized using constraints. Our goals are, firstly to make an overview of existing works that analyses the various ways to associate these two kinds of aiding tools essentially in a sequential way. Secondly, we propose an approach that allows us to use them simultaneously in order to assist design decisions with these two kinds of knowledge. The paper is organized as follows. In the first section, we define the goal of the paper and recall the background of case-based reasoning and constraint filtering. In the second section, the industrial problem which led us to consider these two kinds of knowledge is presented. In the third section, an overview of the various possibilities of using these two aiding decision tools in a sequential way is drawn up. In the fourth section, we propose an approach that allows us to use both aiding decision tools in a simultaneous and iterative way according to the availability of knowledge. An example dealing with helicopter maintenance illustrates our proposals.     

On the use of dynamic feedback in knowledge base system design

The problems of the physical design of knowledge base systems is discussed. A basic architecture for adding monitoring and reorganization software to knowledge base management systems is presented. This software uses dynamic feedback from the system to restructure the physical representation of data. Examples of the incorporation of monitoring and reorganization software into existing systems are given.     

A survey of reasoning procedures in knowledge based systems for economics and management

This paper surveys reasoning and inference strategies as especially relevant for knowledge based systems in economics and management. This requires elements of object oriented features, numerical and text constraints, search over time, game power conflict resolution. Specific functionalities are discussed.     

Understanding the design of information technologies for knowledge management in organizations: a pragmatic perspective

Abstract.  Researchers report mixed findings on the successful application of information technologies (IT) for knowledge management (KM). The primary difficulty is argued to be the use of information management techniques and concepts to design and develop KM Tools. Also problematic is the existence of a multiplicity of KM technologies, the application and use of which differs across organizations. This paper argues that these problems stem, in part, from the information system field's over-reliance on design concepts from the functionalist paradigm. Hence, our contention that alternative perspectives, which bring into focus issues of ontology and epistemology, need to be brought to bear in order to understand the challenges involved in the design and deployment of IT artefacts in knowledge management systems (KMS). The philosophy of technology, with its emphasis on the primacy of praxis, and which incorporates ontological and epistemological concepts from phenomenology and hermeneutics, is applied to the findings of a participative action research study to illustrate how social actors interpret and understand worldly phenomena and subsequently share their knowledge of the life-world using IT. The outcome of this marriage of situated practical theory and philosophy is a set of design principles to guide the development of a core KM Tool for KMS.     

Cognitive evaluation for conceptual design: cognitive role of a 3D sculpture tool in the design thinking process

ABSTRACT

This study focuses on the decisive role played by the digital design environment in the cognitive design process and design thinking. To analyse the cognitive role of digital design tools, we carried out a protocol analysis of conventional design sketching and a 3D sculpture tool. Cognitive evaluation was a differentiating factor when considering the contextual role of the 3D sculpture tool in subsequent evaluations, non-sequential evaluations for conversion, and passive approaches within the design process. Cognitive evaluation played the following roles: validation, extension, navigation, exploration, and confirmation. The navigation, exploration, and extension roles played by non-sequential evaluation were mainly related to inductive design thinking. Finally, the types of cognitive evaluation and their roles when using the 3D sculpture tool were different, according to the design thinking type. This study explored the multidimensional roles of cognitive evaluation using a 3D sculpture tool and its relationship with design thinking types.     

The semiotics of configurations for the immanent design of interactive computational systems

In this paper the authors propose a novel semiotic approach to the design of interactive systems and computational systems, grounded in the most recent contributions within the debate around semiotic theory and analysis. This approach, that is here called Semiotics of Configurations (SoC), is proposed for its analytic power in describing material artifacts and settings with a purposely a-conceptualistic stance. The resulting analysis informs a kind of design that is aimed at reproducing and supporting the programs of action detected in the use of artifacts, as this use is “abducted” from the physical and material form of the artifacts themselves and from the observation of how content is transformed within and across them. This approach to design, called immanent design, has inspired a platform for the user-driven development and use of electronic documents and forms in cooperative and organizational domains. The framework is illustrated with a case drawn from a study performed in the domain of hospital work.