Building Consensus on Middleware for Digital Video

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Presentation transcript:

Building Consensus on Middleware for Digital Video VidMid Building Consensus on Middleware for Digital Video Mary Fran Yafchak, maryfran@sura.org Southeastern Universities Research Association

Getting Started Once upon an I2 meeting room in Washington DC…. Attendees: I2 MW, ViDe (with ANU, Gatech, SURA, SURFNet, UAB, UNC, UT), GSU Meeting purpose: Compare notes, share project ideas & approaches, decide if there is more to be done

An Initiative is Born “Vidmid” - Middleware for Digital Video Goals: Identify needs (MW for near term DV) Develop/prioritize usage scenarios Examine approaches for design/development Vidmid@internet2.edu Discussions so far: Naming the group (!), DoD & ENUM, related activities, project scoping

Current Members (5/9/01) Ken Klingenstein (U-Colorado/I2) Acting Chair Ben Chinowsky (I2) Scribe Egon Verharen (SURFNet) Ivana Belgers (SURFNet) David Pokorney (U-Florida) Mary Trauner (GaTech) Mike Staman (Macon State) Bob Riddle (I2) Michael Gettes (Georgetown) Art Vandenberg (GSU) Ted Hanss (I2) Amy Philipson (ResearchChannel) Keith Hazelton (U-Wisconsin) Pat Jackson (Va Tech) Bob Morgan (U-Washington) Tyler Johnson (UNC) Bob Dixon (OSU) Larry Amiot (ANL/NWU/I2) Renee Frost (I2) Markus Buchhorn (ANU) Mark Poepping (CMU) Dan McCarriar (CMU) Ellen Vaughan (I2) Keith Portis (U-Nebraska) Jill Gemmill (UAB) Mairead Martin (UT) John McNair (UT) David Kuhlman (UT) Phil Galanter (NYU) Mary Fran Yafchak (SURA) Orit Levin (RADVision)

Middleware - An Early View A “Ted Talk” from Sept. 98 - http://apps.internet2.edu/talks/980926mware.ppt Technology Scope of Middleware: QoS Digital video/audio Security Collaboration Directories Multicast File systems Measurement Remote instruments IMS Transaction systems Meta-computing Management IP telephony Accounting/billing E-commerce Object brokers Search mechanisms Printing

Middleware - Today’s View Application-Oriented Middleware Identifiers Certs & PKI Authn Authz Directories Ubiquitous Computing Grid Admin Secure multicast Bandwidth Brokering Core Middleware Network-Oriented Middleware

And now: DV Middleware DV middleware - the middleware necessary to support scaleable useful DV usage scenarios Voice/Video/Data “call” scenarios Streaming & On-demand scenarios DV-to-Directory Services scenarios

Scenarios: Directory Services Examples (from Art Vandenberg/GSU): User can look up person information in a directory. Search interface is simple, “intuitive” and provides contact details. Directory details include attributes specific to supporting videoconference connection (IP address, type of equipment, local time zone info, bandwidth…?). User’s video conferencing software provides an LDAP interface to the directory information user has set up. The result of a lookup can be used to initiate a conference connection (“click to connect”) and the software can use the configuration details in the directory to negotiate the connection.

Scenarios: Directory Services More examples: Added feature of user’s directory is that user can index video datasets or other objects that they wish to access during conference. Convenient interface permits them to organize folders, assign sharing access, etc. User’s directory information is stored in a standard objectClass that enables the information to be discovered easily, promoting interoperability. User is not expected to know details of directory infrastructure. Directory transparently masks any distributed integration required for deployment, performance, or synchronization..

Others scenarios soon.. Voice/Video “call” scenarios: Tyler Miller-Johnson, UNC Data Collaboration scenarios: Mary Trauner, Georgia Tech Streaming/VOD scenarios: Mairead Martin, UT

*A.K.A “Related Activities & Initiatives” One Big Happy Mess* I2 Middleware - Early Harvest/Adopters, MACE (eduPerson, DoDHE, Shibboleth) Standards makers - ITU, IETF, DMTF, Others? “Development Communities” - ViDe, TERENA, the I2 Commons, Federal PKI, CREN, Net@EDU PKI & ICS, CSG, Grid Community, Others? *A.K.A “Related Activities & Initiatives”

Today’s Bonus: MFY Working Group Prayer Interested in More? Today’s Bonus: MFY Working Group Prayer “May we be big enough to be inclusive yet small enough to get things done!” For all interested - the Vidmid Web site: http://middleware.internet2.edu/video To join the group, contact any vidmidder Know someone else who ought to know about vidmid? Pass it along!