These results can also be generalized to other domains doing 3D modeling.
The FACADE Project at MIT is investigating these challenges in the architecture, engineering and construction (AEC) industry and has developed recommendations and systems to support digital archives in dealing with digital 3D models and related data. Additionally, the metadata required to manage 3D models is not yet standardized, and getting intellectual proposal rights for digital models is uncharted territory. Preserving 3D models requires identifying technical formats for the models that can be maintained over time, and the available formats offer different advantages and disadvantages depending on the intended future uses of the models. Increasing demand to manage and preserve 3-dimensional models for a variety of physical phenomena (e.g., building and engineering designs, computer games, or scientific visualizations) is creating new challenges for digital archives. Successful data migration of these files ensures that data is accessible and usable, and provides many opportunities through data re-use to combine and re-interrogate datasets, allowing new archaeological interpretations to be developed. In particular this paper focuses on the challenges of migrating spatial data, specifically Computer Aided Design (CAD) files. This paper highlights the importance of the ongoing management of research data for long-term preservation. The ADS practices a combination of normalization, version migration, format migration and refreshment for the active management and ongoing preservation of all archived data types. An integral component of the ADS remit has been the life-cycle principle of preservation, curation and dissemination of data in order to enable re-use.
The ADS does this by preserving digital data in the long-term and by promoting and disseminating, open and free datasets, gathered from all sectors of archaeology. The Archaeology Data Service (ADS) is a digital archive that has been promoting good practice in the use of digital archaeological data and supporting research, learning and teaching with high quality and dependable digital resources for twenty years.
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