corporation for national research initiatives doi resolution issues larry lannom doi workshop...

Corporation For National

Research Initiatives

DOI Resolution Issues

Larry Lannom

DOI WorkshopReston, VA

19 September 2000



DOI Resolution Issues

• Basic Handle Resolution Capabilities

• Contextualization

• Parameterization

Larry Lannom - 19 Sep 00



3

Handle dataHandleData type Index

Handles Resolve to Typed Data

10.123/456 URL http://srv1.pub.com/.....3

URL http://srv2.pub.com/.....2

9URL http://srv3.pub.com/.....59MD http://lu.cr.com/10.123..10

999EM [email protected]

9IP 10.456/7894




The Two Types of Handle Query

Handle System

Give me all data associated with handle 10.1000/123.HandleClient

1. Request all data

3251094

10.1000/123 URL1(Server in US)URL2 (Server in Asia)URL3 (Server in Europe)public keyemail addressrights data

URLURLURLPKEMIP

Index Type DataHandle

Corporation For NationalResearch Initiatives

32 5

10.1000/123 URL1(Server in US)URL2 (Server in Asia)URL3 (Server in Europe)

URLURLURL

Index Type DataHandle

Give me all data of type URL associated with handle 10.1000/123.HandleClient

2. Request all data of a given type

Handle System




Handle Protocol/Data Model

• Multiple typed values per handle

• Extensible typing

• Query by type




Some Other

Process

Future Resolution - Scenario 1

(1)

Handle System

(2)

3251094


URLURLURLPKEMIP

Some other handle aware process uses a DOI to contact the Handle System and request all URLs associated with that

DOI. . .

doi:10.1000/39505468499584974

Internet




Handle System

(3)

325

10.1000/39505468499584974 URL1 (Server in US)URL2 (Server in Asia)URL3 (Server in Europe)

URLURLURL

. . . and then ranks those URLs based on performance or best location . . .

Some Other

Process





URL2 (Server in Asia)

. . . chooses the best one, and resolves it.

(4)

URL2 (Server in Asia)

Some Other

Process





A process might use an email address, rights data, or other current state data.

Handle System

(2)

(3)

3251094


URLURLURLPKEMIP

doi:10.1000/46578

(1)

(4)

rights data

Some Other

Process





(1)

XML file with embedded DOI

User clicks on a DOI embedded in an XML document.

Future Applicationwith nativeunderstanding of handles and XML

doi:10.1000/5467





The application connects to the Handle System . . .



Handle System(2)

3294

10.1000/5467 http://www.pub.org/http://rights.explain/[email protected]://crossref.org/...

URLIPEMMD




. . . and retrieves DOI data.



(3)

3294

10.1000/5467 http://www.pub.org/http://rights.explain/[email protected]://crossref.org/..

URLIPEMMD




Application analyzes the data associated with that DOI.



http://www.pub.org/http://rights.explain/[email protected]://crossref.org/..

URLIPEMMD




and dynamically displays for the user, as a mouseover, a list of options based on the data in the DOI System.



(5)


1. Retrieve document2. Explain rights3. Email query4. Show metadata




User selects which path to follow.



(6)


metadata record

1. Retrieve document2. Explain rights3. Email query

4. Show metadata




Contextualization: Current

Corporation For NationalResearch InitiativesLarry Lannom - 19 Sep 00

10.1000/123

http://acme.com/pg1.html http://acme.com/pg1.html

10.1000/123

Handle Systemdx.doi.org

acme.pub

pg1.html

Article withCrossRef

Link

Client

XYZ University

Local copy



Contextualization: First Experiment (Hardcoded CrossRef)


10.1000/123?cookie

Redirect to local SFX Server

Handle System

dx.doi.orgUnderstands SFX Cookies

CrossRef

Metadata?

Metadata

localCopy.html


Link

Client

Local SFX Server

XYZ University



Contextualization: Second Experiment (MD Indirection)


10.1000/123?cookie

Redirect to local SFX Server

Metadata location?

Meta1.com

Handle Systemdx.doi.org

Understands SFX Cookies

Meta1.comMetadata Collection Service

XYZ University

Client


Link

Local SFX Server

localCopy.html

Metadata?Metadata



Handle URI Parameters

• Instructions to client on interacting with handle system– type=PK– query=Authoritative

• Instructions to client on further actions to take with return values– URLsuffix=ABC

• Instructions to client on further actions to take with returned object– loc=chap23




Handle URI Syntax

• (type=PK)@10.123/456

• (type=PK){subject=accounts}@10.123/456

• (type=PK(subject=accounts))@10.123/456

• 10.123/456!type=PK?subject=accounts

• 10.123/456?type=PK&subject=accounts

• etc - still in play


corporation for national research initiatives doi resolution issues larry lannom doi workshop...

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