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Proceedings of the 8th International Conference on Intellectual ...

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Marko Anzelak et al.<br />

structure-view. The meta data can be categorised in two areas − specific to a drawing or related to a<br />

category. Each drawing is assigned to a category, which means that <str<strong>on</strong>g>the</str<strong>on</strong>g> category-related meta data<br />

are automatically included. Category-related meta data primarily include <str<strong>on</strong>g>the</str<strong>on</strong>g> associated categoryspecific<br />

documents. The ideas and experiences <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> design engineer can be stored directly with <str<strong>on</strong>g>the</str<strong>on</strong>g><br />

drawing-specific meta data. If <str<strong>on</strong>g>the</str<strong>on</strong>g>se data also apply to o<str<strong>on</strong>g>the</str<strong>on</strong>g>r drawings, <str<strong>on</strong>g>the</str<strong>on</strong>g>y can be transformed into<br />

category-related data. We should point out that this requires an additi<strong>on</strong>al investment <str<strong>on</strong>g>of</str<strong>on</strong>g> time. Though<br />

<str<strong>on</strong>g>the</str<strong>on</strong>g>re is no immediate benefit to justify this effort, in <str<strong>on</strong>g>the</str<strong>on</strong>g> l<strong>on</strong>g term it does save a greater amount <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

time. Generally speaking, <str<strong>on</strong>g>the</str<strong>on</strong>g> time required for <str<strong>on</strong>g>the</str<strong>on</strong>g> entry <str<strong>on</strong>g>of</str<strong>on</strong>g> meta data is a comm<strong>on</strong> c<strong>on</strong>cern, and any<br />

improvement <str<strong>on</strong>g>of</str<strong>on</strong>g>fered to <str<strong>on</strong>g>the</str<strong>on</strong>g> performance <str<strong>on</strong>g>of</str<strong>on</strong>g> this task is <str<strong>on</strong>g>of</str<strong>on</strong>g> great value. For this reas<strong>on</strong>, phase 2 <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g><br />

project focuses precisely <strong>on</strong> this issue.<br />

Figure 4: Metadata model<br />

In phase 2 it is intended to establish an interface to <str<strong>on</strong>g>the</str<strong>on</strong>g> drawing files, which is able to extract a variety<br />

<str<strong>on</strong>g>of</str<strong>on</strong>g> data from <str<strong>on</strong>g>the</str<strong>on</strong>g> drawings and can thus automatically pre-fill <str<strong>on</strong>g>the</str<strong>on</strong>g> data from phase 1. Fur<str<strong>on</strong>g>the</str<strong>on</strong>g>rmore, an<br />

algorithm will be developed, which will suggest a part category based <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g> c<strong>on</strong>tent <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> drawings.<br />

In order to be able to meet all <str<strong>on</strong>g>the</str<strong>on</strong>g> requirements <str<strong>on</strong>g>of</str<strong>on</strong>g> technical draughtsmen, an evaluati<strong>on</strong> survey was<br />

carried out to record <str<strong>on</strong>g>the</str<strong>on</strong>g>ir specific needs.<br />

3. Requirement analysis <str<strong>on</strong>g>of</str<strong>on</strong>g> technical designs<br />

Within <str<strong>on</strong>g>the</str<strong>on</strong>g> scope <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> requirement analysis, a study was carried out involving more than 30 design<br />

engineers. The objective <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> survey was to establish whe<str<strong>on</strong>g>the</str<strong>on</strong>g>r <str<strong>on</strong>g>the</str<strong>on</strong>g> requirements <str<strong>on</strong>g>of</str<strong>on</strong>g> different<br />

designers are similar, and whe<str<strong>on</strong>g>the</str<strong>on</strong>g>r it is possible to define requirement categories. The core results <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

this survey are stated below:<br />

99% <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> designers use AutoCad as <str<strong>on</strong>g>the</str<strong>on</strong>g>ir design programme<br />

82% <str<strong>on</strong>g>of</str<strong>on</strong>g> those surveyed spend 80 - 100% <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g>ir time designing<br />

Only 25% <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> organisati<strong>on</strong>s use a drawing management system<br />

47% use old drawings for new designs<br />

22% also use drawings created by colleagues as templates<br />

50% spend 20 to 40 minutes <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g>ir search for templates every day and 50% devote 40 to 60<br />

minutes to this task<br />

100% <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> designers need additi<strong>on</strong>al documents in order to create <str<strong>on</strong>g>the</str<strong>on</strong>g> drawing<br />

In <str<strong>on</strong>g>the</str<strong>on</strong>g> case <str<strong>on</strong>g>of</str<strong>on</strong>g> queries or difficulties, 12% turn to colleagues for assistance, 17% find answers in<br />

meetings and 71% carry out an independent search<br />

46

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