CDI mid-year summary

New Capabilities of the DOI:a Win4Knowledge

(win/win/win/win for End Users, Librarians, Publishers & Vendors)

Society for Scholarly PublishingJune 2, 2004 San Francisco

2000-2003 Content Directions, Inc. "DOI" and "DOI.ORG" are registered trademarks of the International DOI Foundation

New Capabilities of the DOIA guided tour, with live examples, of the new capabilities of the Digital Object Identifier (DOI) demonstrating its new value for:End Users (Knowledge Workers, Students, Professors)LibrariansPublishersVendorsCrossRef now represents a whole ecosystem: >10 million STM Journal Articles, >300 publishers internationally, other parties in value chain

But only the tip of the iceberg: new capabilities take the DOI another quantum leap in potentialSee Not Your Fathers DOI: New Applications Show Wider Promise by Steve Sieck, EPS

End Users (Knowledge Workers,
Students, Professors)Content is richer, more functional, contextually interlinkedContent is easier to find:contextually (from other content)within search engine rankingsvia 3rd party websites (portals, news sites, reviews, author sites)on their own intranetsContent is easier to use and integrate into the work processInternal reports, footnotes, bibliographiesIntranets, local Knowledge Mgmt systems, Collaboration systems, LMSProfessors websites, online syllabus/reqd reading, assignmentsMcGraw-Hill World Aviation Directory (+ Aviation Week, Business Week, S&P) - McGraw-Hill Access Science - DOI within email HBSP Textbook Map PDF - SRI - WebMD

LibrariansRecapture your patrons from Google & other search enginesDrive up the utilization of the content you have paid forMeasure & document this higher utilization better justify your content purchases & subscriptions; retain or increase your content budgetDeliver greater patron satisfaction via superior contentEnjoy improved functionality from your vendor systems (IOLS, ILL, LMS, Document Delivery, Subscription admin)Reduce intranet-related costs, esp. in maintaining content access as integrated with internal intranet & navigation

Evidence of Utilization: DOI traffic via Google
>3X greater than regular Web site traffic

Chart1

1451178

23291079

22725118

20816469

Total Visits from Publisher's Web site

Total Visits from DOIs

January - April 2003

Total Visits

DOI Traffic Report - Major Educational Publisher

Historicals

DOI TRAFFIC REPORT: MAJOR EDUCATIONAL PUBLISHER

This report compares the traffic to the publications via the Publisher's Web site, versus the traffic via DOIs.

January '03February '03March '03April '03

Visitors:

Total visits via the Publisher's Web site1451232922722081

Total visits via DOIs178107951186469

Historicals

Total Visits from Publisher's Web site

Total Visits from DOIs

January - April 2003

Total Visits

DOI Traffic Report - Major Educational Publisher

Publishers (incl. Aggregators)Produce and deliver better/rich content: more functional, contextually interlinkedInterlinked content itself becomes a sales/marketing tool: exposes users to related offeringsContent is easier to find, therefore drives up utilizationcontextually (from other content)within search engine rankingsvia 3rd party websites (portals, news sites, reviews, author sites)on customers own intranetsHigher utilization means: higher renewal rates, more seats or concurrent users, more enterprise-level dealsEasier integration into the end-user work process means: greater customer lock-in, greater customer satisfactionCDI Customer Examples - McGraw-Hill World Aviation Directory (+ Aviation Week, Business Week, S&P) - WebMD

Publishers (incl. Aggregators) contd 1More EXTERNAL benefits broader, more flexible, yet less expensive partnering, syndication, distribution:Partner with complementary content providers increasing distribution and exposure to new audiences yet with zero technology investment or operational setupSyndicate/distribute to new, highly-qualified audiencesMeasure the success of new partnerships/syndication relationshipsIf not working, change on the flyImplement new business models, bundlings/packagings, access control approaches all on the flyEnable superdistributionGreenwood (Add this Link to Your Site) - Syndication to fan sites (Warner Music) - Hoovers-Snapshots-Harvard Business Partnering demo SRI PDF excerpt

Publishers (incl. Aggregators) contd 2INTERNAL benefits improve Content Mgmt/DAM to reduce costs, enable rapid/flexible product development, and integrate heterogeneous internal systems (not just multiple CMS/DAM, but others too):Identify and interlink all related content assets internally (no more Silos)Unify multiple asset repositories (across different systems, platforms, departments, management processes) without modifying these other systems or disrupting staffInterlink content assets with related info in other systems never before interlinked: rights info, contracts, sales tracking, advertisingCreate new or recombinant products more rapidly (incl. granular publishing, custom publishing)Bring them to market fasterTransition seamlessly to the Web when the content is published externally (internal DOI migrates smoothly to external DOI)Accomplish all of the above via existing installed systemsSRI or M-H Aviation - Gale E-Docs - McGraw-Hill Access Science --- CDI IntraConnect/Canto Cumulus

VendorsAll previous benefits can be delivered via existing installed vendor systems, with minimal modificationCMS/DAM systems can migrate upstream from dept-level solution to enterprise dashboard interlinking multiple CMS/DAM systems, and/or linking related systems like Rights, Contracts, Sales Tracking, AdvertisingKnowledge Management systems, Collaboration systems, Learning Mgmt systems can seamlessly, permanently & persistently interlink all related internal content, and/or related external contentIOLS, ILL, DocDel,intranets all can support local linking as customized to the needs of the local institution, while still benefiting from the permanence/persistence of the DOI and its infrastructure. They can also streamline/reduce their administrative costs & effort.CDI Partnership program

Win4Knowledge
Win/win/win/win (win4) for: End Users, Librarians, Publishers & VendorsUtilizes standards-based, robust, internationally-support DOI infrastructureClear and well-documented business caseAllows customization by all players in value-chainCDI Win4Knowledge program and suite of products/services

Whats new here?DOI for internal use (content mgmt) as well as external (public) useTurnkey implementation (e.g. 2-5 hours of customer time)CDI has fully automated MultiLink creation & ongoing maintenanceBusiness case now well-documented (both revenue and cost-savings)Works for Aggregators as well as primary PublishersCDI Win4Knowledge program and suite of products/services now supports Libraries, Aggregators and Vendors in addition to PublishersAdoption has spread across media, across industriesSyndication/Distribution/Partnering capability, w/no tech or operationsMore metadata standards: Dublin Core, ONIX, soon PRISM, SCORMNo more per-DOI pricing

Further Drill-DownContent Management/DAMSyndication/Distribution/PartneringDigital Rights ManagementWhat is the DOI?Who is CDI?

The Dilemma of Scalable DAMSingle-vendor, centralized enterprise solutions dont succeedSeybold Report article, Jan 2002Forrester Research report, Jan 2003Jupiter Research report, Jan 2003Our own real-world experienceWorkgroup-level solutions are problematicDont scale orAre considered overkill for workgroups

[DAM] has been a virtual Tower of Babel at large media companies. As they deploy more and more [different] types of systems, they get further and further away from the original concept of enterprise content managementthe anyone can do anything with any content anytime vision.

Publishing executives have recognized this problem and would like to solve it. But until now, there have been two choices of solution: either scrap everything that has been built in favor of yet another attempt at building the Grand Unified Content Management & Distribution System, or build new technology around existing systems that integrates them into a seamless whole. Both of these approaches require major custom development and integration projects that tend to take well over a year to complete and to have price tags hovering around the eight-figure mark.

Enterprise Content Integration (ECI) is a name were giving to a new technology concept that makes the solution to the Tower of Babel problem considerably cheaper and faster, while enabling easy expansion to new types of online product distribution for media companies.Seybold Report article, Enterprise Content Integration: Next Step Beyond DAM?January 2002All the Experts Agree

Enterprisewide digital asset management (DAM) is a myth for media companies. Publishers and networks should attack specific workflows with open, cheap, modular tools not with galactic DAM deployments.Forrester Research report,Dont Go Broke Managing Digital AssetsJanuary 2003All the Experts Agree - 2

Companies can save months of development time and, in some cases, millions of dollars by deploying federated content management (FCM) in lieu of centralizing or taking on messy point-to-point integrations.

While the ends of enterprise content management are admirable, centralizing on a single solution is infeasible for most companies. In some cases, consolidating on a single platform can prove disastrous for a large company, even beyond the point of zero return on investment.Jupiter Research report,Federated Content ManagementJanuary 2003All the Experts Agree - 3

Scaling DAM: Overcoming the Dilemma with a New ApproachLeave departmental solutions in placeProtect recent investmentsIntegrate them into an enterprise frameworkMinimally disrupt current processesAdopt federated instead of one-size-fits-all approachAccommodate new & different systems over timeProvide most benefits of enterprise DAM at far less cost and deployment timeAchieve 80/20 rule

ECI: a Practical Approach to
Enterprise Content ManagementECI = Enterprise Content Integration:

Build enterprise content catalogCan be based on existing, installed commercial productStandardize on common metadata subsetNormalize individual metadata setsIntegrate content catalog with workgroup & department level content systems Use DOIs as integration mechanism

Essential Benefits of ECIKnow what you haveFind what you wantKnow where it livesKnow whether you have the rights to use itBe able to get it

Comparison of Effort**For more details, see white paper Enterprise Content Integration with the DOI: A Business Case for Information Publishers, by Bill Rosenblatt, DOI: http://dx.doi.org/10.1220/whitepaper5

Sheet1

DOI-enabled ECIEnterprise DAM

ResourceCostResourceCost

Create common layer of metadata standardspeopleLCreate metadata standards for entire enterprisepeopleH

Acquire metadata creation skillspeopleHAcquire metadata creation skillspeopleH

Populate lightweight common metadata set and create DOIspeopleLPopulate large enterprise metadata setpeopleH

Convert to XML on back end as neededtoolsMMigrate to XML-based content creation tools & processestools &peopleVH

Build metadata catalog & harvesting functionalitytoolsMBuild central asset storetoolsH

Leave content where it is--Migrate content to central asset storetools &peopleH

Integrate with content creation & distribution toolstoolsMIntegrate with content distribution toolstoolsH

Sheet2

Sheet3

Quantitative Benefits - Examples*Cost avoidance of ~$120k for a vertical market information publisher building a new cross-brand Web portal.Annual incremental revenue of $700k for a periodical publisher from being able to publish more books per year of repurposed periodical content.A 94% reduction in staff effort, representing a potential savings of over $400k per year, for a textbook publisher building Web sites to accompany textbooks.Over $1.2 Million in incremental revenue for a publisher of financial information from selling documents through third-party investment selection tools.

*For more details, see white paper Enterprise Content Integration with the DOI: A Business Case for Information Publishers, by Bill Rosenblatt, DOI:http://dx.doi.org/10.1220/whitepaper5

Example: CDI IntraConnect as integrated with Canto Cumulus

Reduce/Avoid Costs by Future-Proofing ECI - and the DOI generally - future-proofs all parties againstchanges in external vendorschanges in business modelschanges in technologychanges in internal systemschanges in external partners

Further Drill-Down

Syndication/Distribution/
Partnering

Distribute links instead of loading content!Never again have to police and maintain broken linksCustomize existing DOI functionality to needs throughout the value chainEasy to implement & customerCDI MultiLink Syndicatorlive example (Greenwood Publishing Add this Link to Your Site)product description (http://doi.contentdirections.com/syndicator_bookdemo/letter.cgi)Partner rapidly/flexibly with zero cost/effort in technology development or operational setup (http://doi.contentdirections.com/hoovers_snapshots_hbsp/)

Further Drill-Down: Syndication/Distribution/Partnering

One Example of Cost Reduction:
Cost of Bilateral linking agreementsPublishers Agreements5 1025 30050 1225N N(N-1)

International DOI Foundation

Centralized linking agreementsCommon interchange

N publishers = N links

International DOI Foundation

Further Drill-Down

DOI:
The Keystone to Digital Rights Management (DRM)

Why the DOI is the Missing Link for Practical, Reliable, User-Friendly DRMEnables interoperability between systems (like any other universal standard identifier)Enables permanent links between all parties links which never break, despite changes in DRM vendors, outsourcing/insourcing of various parts of the DRM chain, revamping/replacement of component systems in the chain, etc.Permits links to be updated dynamically over time to offer new services, redesign websites, change business partners, etc. (in addition to replacing or reconfiguring DRM systems) - all without affecting any other systems or having to re-master and re-distribute the content itself.Can be assigned to non-content "objects", thus extending the same identification and linking benefits to all the other "objects involved in the DRM process: customer records, digital signatures, digital certificates, watermarks, artist records, contracts, licenses, access control records, etc. ONLY practical method of enabling superdistribution (the "Holy Grail" of DRM) no other way to ensure persistence and reliability after content gets shipped out the door and goes into P2P pass-along modeSupports far more robust anti-piracy per seUnlocks the full marketing potential of DRM by empowering "granular" or "recombinant" content including free samples vs paid full-content, pay-as-you-go, rent temporarily, subscribe, etc.

Drill-down on Interoperabilitythroughout the DRM Value ChainSecure Wrapping/ EncryptionPublisherDRM Packaging SoftwareDRM Packaging SoftwareSecure Wrapping/EncryptionSecure Wrapping/ Encryption

PublisherDRM Packaging SoftwareContent Hosting

Secure Wrapping/ EncryptionPublisherMeta-dataDrill-down on Interoperabilitythroughout the DRM Value Chain

Secure Wrapping/ EncryptionPublisherDRM Packaging SoftwareDRM Packaging SoftwareSecure Wrapping/EncryptionSecure Wrapping/ EncryptionPublisherCustomer-Visited Publisher website, and been referred to copy of encrypted content

-Linked to encrypted content from an index or library catalog

-Received the encrypted file from a friend or colleague (superdistribution)Content Hosting

Meta- dataDrill-down on Interoperabilitythroughout the DRM Value Chain

Secure Wrapping/ EncryptionPublisherDRM Packaging SoftwareDRM Packaging SoftwareSecure Wrapping/EncryptionSecure Wrapping/ EncryptionPublisherRights ClearinghouseCustomer Reports to Publisher (either aggregate sales numbers or individual customer information)

Issues key or Permit

Checks user ID Checks rights assigned (if any) to user by Publisher Takes payment

Content Hosting

Meta- dataDrill-down on Interoperabilitythroughout the DRM Value Chain

Secure Wrapping/ EncryptionDRM Packaging SoftwareCustomerContent Distributors/ Syndicators/ AggregatorsContent Hosting

Meta- dataPublisherRights Clearinghouse Reports to Publisher (either aggregate sales

numbers or individual customer information) Issues key or Permit

Checks user ID Checks rights assigned (if any) to user by Publisher Takes payment

Drill-down on Interoperabilitythroughout the DRM Value Chain

Content Distributors/ Syndicators/ AggregatorsSecure Wrapping/ EncryptionDRM Packaging SoftwareCustomerDOIContent Hosting

Meta- dataPublisherDOIE-Commerce VendorRights ClearinghouseHow can all these transactions flow successfully ???Drill-down on Interoperabilitythroughout the DRM Value Chain

Content Distributors/ Syndicators/ AggregatorsSecure Wrapping/ EncryptionDRM Packaging SoftwareCustomerDOIContent Hosting

Meta- dataPublisherDOIE-Commerce VendorsRights ClearinghouseDrill-down on Interoperabilitythroughout the DRM Value Chain

CustomerCustomerCustomerCustomerContent Distributors/ Syndicators/ AggregatorsSecure Wrapping/ EncryptionDRM Packaging SoftwareCustomerContent Hosting

Meta- dataPublisherE-Commerce VendorsRights ClearinghouseDrill-down on Interoperabilitythroughout the DRM Value Chain

Further Drill-down

What is the Digital Object Identifier (DOI)?

What is the DOI?An identifier system with a linking system behind itIdentifies any kind of object (music, film, book, article, database record, watermark, person)Links based on the identifier are:Permanent (routing is updated via one central record in a global directory)MultiLinking (one-to-many linking, not just to a single page like a URL)The underlying routing system is:Free to end-usersMinimum-cost to businesses (part of Internet infrastructure, like DNS)ScaleableIndustry-standard

Origins & PedigreeInvented by Internet Pioneer Dr. Robert Kahn (co-inventor of TCP/IP, packet switching, etc.)Funded by DARPA (which also funded Dr. Kahns construction of the ARPAnet)CNRI (Corporation for National Research Initiatives): Dr. Kahns non-profit research organization; runs IETF, IAB, XIWT, other bodies which manage Internets infrastructureMotivation was to address the fragility of the WebIdentification and linking based on permanent IDs, not temporary locationsUnify heterogeneous information repositories at the information level, just as Internet did at the data communications level

Drill-down: What is the DOI?As an identifier, the DOI is

The UPC (Bar Code) for the Internet

As a linking mechanism, the DOI is

The Next-Generation URL

Any type of content: text, music, film, video, photographs, softwareAny level of granularity: whole book, individual chapters, illustrations, data sets, tables, music tracks, versions (e.g. dif. resolutions)Compatible with (superset of) any & all other numbering schemes (ISBN, ISSN, ISWC, UPC)Once assigned, never changes (A DOI is Forever)

The UPC (Bar Code) for the Internet

DOI Number Format incorporates any existing number or identifier10.1065/abc123defg = the whole DOI10.1065 = Owners Prefix abc123defg = Suffix

Suffix can be ISBN, UPC, CUSIP or any internal Access Number, proprietary number, or random numberany length; any combination of numbers, letters, or foreign character sets (supports Unicode)A DOI is an opaque string (a dumb number - a good thing essential to its permanence)Expressed as a URL: http://dx.doi.org/doi_number - makes it backward-compatible with URLs and the Web, until we see doi:// instead of http://

This slide shows the structure of the DOI identifier string

Why a UPC (Bar Code) for the Internet?Globally-unique ID: identifies the object uniquely, universally, unambiguouslyEnables computers to talk to each other about itInteroperate smoothly, eliminate errors, reduce costsAcross companies, across systems, across platformsAcross transactions of all kinds: sale, distribution, syndication, rights/permissions, access control, authentication, branding

Unifying the entire value chainPublishersPublishers/Aggregators

The Next-Generation URLA central directory provides a level of indirection between the ID and its location(s) or servicesAnalogous to DNS: a single directory logically, but distributed physicallyAll broken links everywhere can be fixed via a single central updateNew destinations or services can be added at willLinking is now one-to-many (MultiLinks)MultiLinks are always up-to-date; never staleVia CDIs implementation, these links can serve needs locally as well as globally (e.g. linking within a university environment or corporate Intranet, or linking within a Media company for DAM/MAM purposes)

Why a Next-Generation URL?
URLs are not sufficiently reliable

URLs listed813629148% functional67%28%31%50%Data from Ford& Harter, College and Research Libraries, July 1998Brewster Kahle (1997): half life of a URL = 44 daysOCLC (2002): 20% of public websites from 9 months ago are now goneSnapNames (2002): # of expiring domains now exceeds those new/renewed

ContentURLURLURLURLURLURLURLURLURLURLURLs point via a LOCATION

937.bin

404 File not foundContentURLURLURLURLURLURLURLURLURLURLLocations change!

938.bin

DOIdirectoryContentContentPublisherDOIdirectoryDOIdirectoryDOIs point via a permanent, object-level identifier

ContentDOIdirectoryDOIdirectoryDOIdirectoryDOIdirectoryDOIdirectoryPublisherDOIdirectoryDOIdirectoryDOIdirectoryDOIdirectoryInternetthru a central, distributed directory (like DNS), but far more scalable

PublisherContentDOIdirectoryDOIs also point one-to-many, not just to a single page

BookstoreBookstoreCDI Multi-Linking

purchase contentget metadataget price quoterequest rights clearancerequest permissions

PublisherDOIdirectorypurchase content

and can therefore be re-directed as desired

* * * Live Examples * * *

(both large & small,
commercial & non-profit)

available on the Web at
http://www.contentdirections.com
For demos click links under See the DOI in Action
For live Customer Examples click Live Customer Examples
or http://doi.contentdirections.com

Further Drill-down

Who is
Content Directions, Inc. (CDI)?

Who is CDI?First business created specifically to help organizations implement the DOI standardFounded and led by DOI pioneers with unparallelled experience creating innovative DOI applicationsDrove the universal adoption of the DOI within STM Journal Publishing (>300 international publishers, >10 million DOIs)Entire sector has now made its content the center of an online ecosystem embracing readers, authors, libraries, distributors, other content partnersNow driving adoption in several industries (publishing, healthcare, educational materials, still images, music)Privately-owned company

Selected CustomersWarner Music Group

Study Documents 12-to-1 Payback

Available free via its DOI: http://dx.doi.org/10.1220/eps1

Scenario: Book Publisher with 3,000 titlesConducted by consulting firm EPSCommissioned by CDI, but conducted via independent interviews with CDI customers, non-CDI customers, and other organizations that offer similar results via different (and more expensive) approaches12-to-1 ROI is for only the first of four areas of DOI benefit (Content Marketing).Three forthcoming papers to address other areas of DOI payback such as Better/Broader Syndication/Distribution, Faster/More Flexible Online Partnering, and Supply-Chain Efficiency. 2nd paper currently underway (Syndication/Distribution).

Source: EPS

Area of DOI ImpactKey MeasuresRevenue GrowthDiscoverability More e-store traffic from potential buyersSite UsabilityHigher conversion rates turning visitors into buyersMerchandisingSelling more to each visitor to the siteCost ReductionWeb Content MaintenanceIncreased IT and editorial productivity

CDI Widely Recognized as the Leader
in the DOI SpaceOnly company profiled extensively by tech guru Esther Dyson in Release 1.0. (See Online Registries: The DNS & Beyond Sept 2003; DOI: http://dx.doi.org/10.1340/309registries). Dyson places CDI and the Handle System in context of the future of the entire Internet, and at the center of the major Registry initiatives on the Internet today, including RFID tags and even Internet telephony.CDIs internal enterprise product (CDI IntraConnect) recognized in Seybold Reports (Bill Rosenblatt, "ECI Progress Report: More Solutions Arrive Aug 2003 http://www.seyboldreports.com/TSR/0310page1.html)NYNMA Award as a Top Technology Company of 2002 Named one of the Hot 10 emerging companies at RVC SoftEdge 2003 Conference (Sept 2003)Many testimonials to both CDI and the DOI, incl. Terry McGraw, Bob Bolick, Pat Schroeder, Robert Kahn and many others under News Testimonials at http://www.contentdirections.com

Opinions from Industry LeadersPatricia Seybold: We predict that, within five years, the DOI standard will be used to tag any published material from any industrythat is, all content or information that is officially released for consumption, whether within or outside of your firewalls.Harold McGraw III: The DOI isa standard that will contribute strongly to the development of the e-book marketplace and the market for all digital content, and deserves the support of the publishing community." Dr. Robert Kahn: The applicationsand related technology being brought to market by Content Directions and the other participants [Microsoft, Adobe, etc.]represent the tip of the iceberg in terms of the economic value that will be unleashed by the widespread adoption of this new approach. Steve Sieck (EPS): A unique aspect of CDIs approach is a contextual multilinking capability By developing software that essentially automates the registration of new content, inter-relates its associated metadata, and creates purchasing links to retailers, CDI has streamlined the implementation process to the point where a publishers primary task is identifying how DOIs can be deployed most strategically... [T]he vision of content IDs bringing order to a chaotic digital world seems a bit closer.

ONLY CDI Offers a Full Range of DOI Services Required for Customer Success Permanent LinksImproved discoverability supporting all business models MultiLinks as well as UniLinksInterlinking of related content:Not just initially, but ongoing. Not just within a business unit, but across business units. Not just within a company but across companiesContinuous integrity-checking of all links. Repairs/alerts as nec.All levels of granularityTrack traffic/sales for business case & ROISyndication & partnering capabilities, with no tech development or operational setupValue-added tools for DOI registration, management, quality-assurance, look-ups

CDI Consulting Methodology (hi-level summary)

Or: JUST DOI-itTwo steps:Create your DOIsUse your DOIs

To create DOIs:Specify the desired MultiLinks (a Marketing exercise: can be one mtg and/or a simple email response to a proposed standard menu)Export existing product metadata (from existing systems in existing form!)CDI does all the rest: creates the DOIs & MultiLinks, interlinks all related products, forever keeps the interlinking up-to-date, points to retailers for purchasing & other transactions, polices bad links, etc.To use DOIs:Put them on your Web site, in PDF catalogs/brochures, etc. just like any other hyperlink, wherever you already refer to your products (example: http://books.mcgraw-hill.com)Syndicate them to other Web sites, portals, business partners, etc.Install CDIs server code which displays the MultiLinks and also allows filtering depending on who the audience is and where they are seeing your DOIs

NOT a big IT Project!Hours, not days

CDI Contact InfoDavid Sidman, CEO: (212) 792-1847 dsidman@contentdirections.com

IID (Internet ID - personal DOI): http://dx.doi.org/10.1570/dsidman

Hal Espo, Consultant (Publishing & Information Industries): (917) 533-7375 hespo@contentdirections.com

Marty Kahn, Chairman: (212) 848-0401 mkahn@rho.com

CDI Web site: http://www.contentdirections.comLive Customer Examples: http://doi.contentdirections.com

This slide shows the structure of the DOI identifier string