Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Sustaining Engineering Informatics: Toward Methods and Metrics for Digital Curation



Joshua Lubell, Sudarsan Rachuri, Eswaran Subrahmanian, Mahesh Mani


Ensuring the long-term usability of engineering informatics (EI) artifacts is a challenge, particularly for products with longer life cycles than the computing hardware and software used for their design and manufacture. Addressing this challenge requires characterizing the nature of EI, defining metrics for EI sustainability, and developing methods for long-term EI curation. In this paper we highlight various issues related to long term archival of EI and describe the work towards methods and metrics for sustaining EI. We propose an approach to enhance the Open Archival Information System (OAIS) functional model to incorporate EI sustainability criteria, Digital Object Prototypes (DOP), and end user access requirements. We discuss the end user’s requirements from the point of view of reference, reuse and rationale – the “3Rs” – to better understand the level of granularity and abstractions required in the definition of engineering digital objects. Finally we present a proposed case study and experiment.
International Journal of Digital Curation


engineering informatics, digital curation, preservation, archiving, sustainability, reference, rationale, reuse, 3Rs, OAIS, TWR 841


Lubell, J. , Rachuri, S. , Subrahmanian, E. and Mani, M. (2008), Sustaining Engineering Informatics: Toward Methods and Metrics for Digital Curation, International Journal of Digital Curation, [online], (Accessed July 20, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created July 1, 2008, Updated February 19, 2017