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Knowledge representation and elicitation for transparent life-cycles



The WP 4 is responsible for the development of transparent knowledge representations for the machine tool industry. The key objective of this work package is to define transparent knowledge representations for the machine tool industry, and develop concepts and tools to gather and interlink knowledge from all stakeholders in the supply chain during the entire life-time of machine tools. Main activities of work package are:

  • Creation of relevant structures for knowledge representation in machine-tool industry
  • Creation of an easy-to-use, cost efficient, distributed graphical interface to store knowledge within the relevant structures
  • Content analysis and semantic annotation for knowledge
  •  Life-cycle long gathering of knowledge


Description of work

Sustainable and targeted design, development and re-use of complex machine-tools are facilitated if the various stakeholders in the supply chain, also acting in different moments of the life cycle, have an easy access to the pertinent knowledge domains and if these are well connected among themselves. To reach this objective it is necessary to define conceptually both the knowledge domains, with their knowledge content, and the structures of the reasoning in relation to the machine mission. This huge conceptual work will be tackled in this WP having in mind the mission of the machine, the environmental situation (capabilities, available services, requirements, constraints, boundary conditions etc.), the Life Cycle Costing, the operating data and the typical usage scenarios as well as the supply chain aspects that involve the flow of the information among its different stakeholders. The aspects related to the accumulation, preservation and updating of the pertinent knowledge will also be considered to facilitate the creation and maintenance of structures for knowledge representation, which are beneficial for machine-tool industrial sector.

This work package is split into following three tasks:


Task 4.1: Creation of relevant structures for knowledge representation in MT industry - CESI, FIDIA, ONTO, IDEK, IPA, GMX, TEKS

Task 4.2: Creation of distributed graphical interface with content analysis and semantic annotations - ONTO, GMX, UNOTT, IPA

Task 4.3: Life-cycle long gathering of knowledge - UNOTT, DIAD, CESI, GMX, ONTO, FIDIA


State of affairs

In work package four, the knowledge representation for supporting the pre-design phase for machine tools has been enabled by a semantic wiki system. For that purpose relevant knowledge structures, data items and cross-relations between all the data necessary for the design process of the machine tool industry have been identified based on the experience of all the partners in the field of component and machine design, life cycle cost analysis, operation and business and engineering processes.  

The structure and content of the semantic knowledge base has been extended so that it is possible now, not only to represent relevant information and relations between different data items but also to guide the designer through a first design process. Therefore a module has been developed which collects all the relevant information for a specific design project. In addition the module has been extended to provide different key performance indicators which can later be used for a better comparison of design alternatives. The calculation of those key performance indicators will be done by specific tools which are currently under development.

For the design process it is also important to have information from existing machines planned and developed in previous projects. For this the existing knowledge structure has been extended to enable the collection of life-cycle data primary based on maintenance information. First methods and tools have been developed to gather maintenance data from the shop floor, which can be transferred to and integrated in the existing knowledge system so that machine builder, designer or component supplier may access those data based on their permission.

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