Research Focus Areas

CNRI's research and prototyping concentrates on the concept of digital objects and digital object architecture: the Handle System (for unique and persistent identification), the DO Registry (for discovery), and the DO Repository (for storage and access).


Digital Object Architecture

Digital Object Architecture provides a basic information infrastructure that can facilitate interoperability between or among different systems, processes, and other information resources, including different identity management systems. Digital objects are networked objects that are named by digital object identifiers and instantiated by an infrastructure service we call a repository. Digital objects provide access to their content using an extensible and secure dissemination mechanism. Disseminations can be thought of as high level types that are uniquely distinguished by a combination of operations, and types of data the latter are performed on. Disseminations consist of mobile code that can be designed, implemented, and registered with the digital object infrastructure by anyone with the proper permissions. This extensible dissemination mechanism enables digital objects to accommodate a wide variety of possible content, from complex to simple, static or dynamic, and from permanent to real time data. Disseminations have few operational limits and enable digital objects to dynamically generate or acquire their content.

The Digital Object Architecture Project continues the architectural work of the DARPA-funded Computer Science Technical Reports Project (CSTR). Previously, CNRI partnered with the Advanced Distributed Learning (ADL) Initiative to develop a registration system for the CORDRA project, the ADL Registry (ADL-R), that used the digital object architecture. The effort enabled the discovery and reuse of learning content held in repositories distributed across the DoD.

See also "An Overview of the Digital Object Architecture" at hdl:4263537/5041.


MEMS and Nanotechnology Exchange®

The MEMS and Nanotechnology Exchange is a leading provider of high-quality foundry and consulting services for the MEMS community. In its role as a trusted intermediary, the MEMS and Nanotechnology Exchange acts as a broker between customers and a network of fabrication facilities. That network of state-of-the-art facilities collectively offers the most comprehensive and diverse set of implementation solutions for MEMS, micro- and nano-technologies, to be found anywhere in the world.