Chapter 7 Conclusions and Future Works
7.2 Recommendation for Future Work
Despite several of the achievements mentioned above, some problems remain unsolved in the development of this research work. In order to make better the case-based fixture design system, future works can be focused on following aspects:
• Retrieval methods issues. In the system of this thesis, the similarity matching method of retrieval only focuses on 3D prismatic workpiece. So, the similarity matching method should expand to be suitable for not only prismatic type but also other types, e.g. cylindrical, flat, box, etc.
• Feature extraction issues. In this system, machining features of a workpiece are input by designer manually. This work is time-consuming and not effective for designer since the designer must know all the dimensions or measure them in other CAD system. A feature extraction module should be developed to integrate with this system to save designer's time and efforts. Thus, CAD system can fully cooperate with textual CBR process.
• Cross-Domain reasoning issues. The system presented in this thesis operates in a very specific domain; expansion of this system to other similar design domain is an important area as well.
• Case evaluation issues. The objective of case evaluation is to check how good the adapted case is. It also tells the system whether or not the new solution success. In fixture domain, fixture analysis is a mathematical issue and research on fixture analysis over internet has not been reported yet. Hence, research on fixture analysis (fixture design evaluation) can be developed and be integrated with the system.
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