Digital Data Acceptance/Quality Assurance Procedures.
Abstract
This report involves two types of Department of Defense (DoD) engineering data repositories: The Army's Digital Storage and Retrieval Engineering Data System (DSREDS) and the Air Force's Engineering Data Computer-Assisted Retrieval System (EDCARS). The DSREDS/EDCARS data repositories store large volumes of engineering drawing data in digital format. The aperture card has been the common means for importing engineering drawing information to these systems, however the micrographics process and the handling of the cards during their generation, transport, inspection, and scanning is an error prone process. This process requires highly skilled operators and attention to detail in order to avoid degrading the quality of the data. The production of digital data from the initial Computer Aided Design and Drafting (CADD) phase to the final, converted digital format phase involves less physical handling and thus reduces the chance of receiving degraded or poor quality digital data. Digital data media is therefore now the preferred means of importing engineering drawing data to DSREDS/EDCARS. The basic engineering drawing information still requires the same final inspection as the aperture card film image and punched hollerith code, although the digital image data is now displayed on a high resolution monitor instead of an aperture card viewer. The micrographics inspectors and clerks are highly trained to view the images and conduct legibility and reproducibility inspections of the image, as well as format reviews. In some cases full document completeness reviews which are most often performed by engineering personnel, are also performed by the micrographics personnel within the engineering data section. The procedures recommended under this task effort may be used to distribute these final reviews between engineering, competitive advocacy, engineering data or other personnel since they can each work from the same DSREDS/EDCARS digital database.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1992
- Accession Number
- ADA312750