DaSD – Dynamic Service Discovery

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00039-07-C-0119
Agency Tracking Number: N071-105-0037
Amount: $69,959.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: N07-105
Solicitation Number: 2007.1
Small Business Information
33 Thornwood Drive, Suite 500, Ithaca, NY, 14850
DUNS: 101321479
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Daniel Tingstrom
 Senior Computer Scientist
 (607) 257-1975
 dtingstrom@atc-nycorp.com
Business Contact
 Richard Smith
Title: Controller
Phone: (607) 257-1975
Email: rick@atc-nycorp.com
Research Institution
N/A
Abstract
The current UDDI standard does not support dynamic federation of registries in the Navy’s disconnected and low bandwidth environment. To support these dynamic, multi-enclave federations while keeping security policies in place, ATC-NY, in collaboration with Architecture Technology Corporation, will develop DaSD (Dynamic Service Discovery). We will employ a modified gossip protocol to enable UDDI registries to be dynamically distributed while using XML compression technology to meet low-bandwidth requirements. To determine feasibility in Phase I we will create a proxy server which clients will transparently use to connect to UDDI servers. The proxy server will keep track of added/removed/failed nodes as well as security policies to be enforced. The proxy server will also manage replication among UDDI nodes. We will also build a prototype simulator, which contains the same events of a dynamic UDDI federation in a low-bandwidth network, to run experiments and optimize the performance of DaSD. By combining the strength of UDDI 3’s features and DaSD’s capabilities, we should be able to support the Navy’s requirements for federating UDDI registries between afloat and ashore networks.

* Information listed above is at the time of submission. *

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