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LibX 2.0 - A Community Platform for Developing Library Services. LITA National Forum 2009 Annette Bailey. LibX 1.0. Toolbar and right-click context menu Adaptive and user-configurable context menus OpenURL support Magic Button (Google Scholar support) Web Localization via Embedded Cues

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libx 2 0 a community platform for developing library services

LibX 2.0 - A Community Platform for Developing Library Services

LITA National Forum 2009

Annette Bailey

libx 1 0
LibX 1.0
  • Toolbar and right-click context menu
  • Adaptive and user-configurable context menus
  • OpenURL support
  • Magic Button (Google Scholar support)
  • Web Localization via Embedded Cues
  • Autolinking
  • Off-campus access via EZProxy or WAM
  • Support for CiteULike
  • Support for COinS
  • Support for xISBN
  • Show/Hide Hotkey

LITA National Forum 2009

libx 1 01
LibX 1.0
  • Toolbar and right-click context menu
  • Adaptive and user-configurable context menus
  • OpenURL support
  • Magic Button (Google Scholar support)
  • Web Localization via Embedded Cues
  • Autolinking
  • Off-campus access via EZProxy or WAM
  • Support for CiteULike
  • Support for COinS
  • Support for xISBN
  • Show/Hide Hotkey

LITA National Forum 2009

library resources are local
Library Resources are Local
  • Libraries provide different services
    • Local resources: catalog types, OpenURL resolver, e-Journals lists, local databases, subject pages/guides, consortia catalogs, licensed citation software
    • Many custom settings (“search scopes,” local indices, local ERM) that reflect local circumstances

LITA National Forum 2009

the libx edition builder
The LibX Edition Builder
  • A configuration management tool for creating customized versions of LibX
    • Customized version of LibX = LibX edition
  • Edition configuration includes descriptions of community-local resources:
    • OPACs, OpenURL, Proxy, Databases, Links, Branding, …
  • Edition Builder is easy to use
    • Makes heavy use of OCLC registries
    • Uses sophisticated auto-detection techniques
    • Usable by librarians, not just programmers
  • Anybody can create, share, and manage editions
  • Over 650 editions as of now, new ones created at a pace of 20/month
    • Huge human investment
    • 10’s of thousands of end users

LITA National Forum 2009

the libx edition builder1
The LibX Edition Builder

LITA National Forum 2009

slide7

LibX Enduser

Communities

Edition

Builder

Community

Database

adapts

offers

consults

updates

feeds back

copy and

share

OCLC

Registries

consults

tests

External

Resources

probes

manages

publishes

Edition

Repository

builds

downloads and installs

LibX Edition Maintainers

LITA National Forum 2009

libx edition statistics
LibX Edition Statistics
  • http://www.libx.org/stats/
  • We’re counting:
    • Firefox installations
    • Internet Explorer installations
    • Sum of installations – “Both”
    • Only Live editions
      • Not necessary for edition to be Public

LITA National Forum 2009

libx 2 0
LibX 2.0
  • Motivation
  • Overview and Goals
  • Preliminary Demos
  • Description of new framework
  • Future work

LITA National Forum 2009

where to go from here
Where to go from here?
  • A toolbar is great, but…
  • Emerging technology trends
    • ILS increasingly integrated with the web
    • Service-oriented architectures, web services interfaces
    • Data mash-ups; HTML widgets
  • Educational trends: librarians, educators, and users create
    • Online tutorials, subject guides, visualizations
    • Social OPACs: tagging, reviews, recommender services

LITA National Forum 2009

slide11

World Wide Web

LibX 2.0

Library Resources and

Web Services

LibX 2.0 plugin: executes Libapps, merging library information into pages.

LibX 2.0

Users:

decide to which library services to subscribe, see expanded view of the web

Librarians: create or adapt Libapps from reusable, shareable Modules

why a community platform
Why A Community Platform?
  • LibX developers can’t possibly support all emerging services for all local communities
  • Must make it easy for community to contribute support for new services in a way that can be shared
  • Goal: Enable LibX maintainers to become meta-designers
  • Meta-Design:
    • Software that enables users who are not trained programmers to design tools
    • see Fischer, G., et al. “Meta-design: a manifesto for end-user development” [2004]

LITA National Forum 2009

goals for libx 2 0
Goals for LibX 2.0
  • Simple integration with existing services
    • ILS, OpenURL resolvers, databases, etc.
  • Localization
    • Services must meet the needs of the targeted community
  • Reuse
    • Librarians will be able to share the services they create
  • Browser Independence
    • Librarians should be shielded from browser incompatibilities (as much as possible)
  • Simple hosting and deployment
    • Librarians should have the ability to develop, adapt, manage and deploy services directly to their community with minimal effort

LITA National Forum 2009

usage case 1 extending the librarian s presence
Usage Case 1: Extending the librarian’s presence
  • Users often have difficulties with database user interfaces
  • Librarians create tutorials, tips, etc.
  • LibX 2.0 allows librarians to offer their materials directly where users need them
  • Example: Assistance with Engineering Village

LITA National Forum 2009

usage case 2 offering library resources intelligently
Usage Case 2: Offering library resources intelligently
  • Users often use search engines instead of the library catalog.
    • LibX 1.0 already places links
  • LibX 2.0 will integrate search results from library resources (OPACs) smartly into user’s page
  • Example: Google

LITA National Forum 2009

the libapp model
The LibApp Model
  • How can the interaction of LibX with web content be modeled?
  • Typical tasks involve
    • Examination of the page and extraction of information
    • Processing of information
    • Modification of the page
  • A Module is a small piece of JavaScript code along with a metadata description of its input and/or output
  • A Libapp is a group of modules
  • A Package is a folder of libapps and packages

LITA National Forum 2009

libx 2 0 roles
LibX 2.0 – Roles

LITA National Forum 2009

module code metadata
Module = Code + Metadata
  • Code
    • will be written by developers
    • JavaScript code written to LibX 2.0 API
  • Metadata of a module can include:
    • Identifier: URL (published as Atom <entry>)
    • Creator
    • Description of functionality
    • Includes/excludes: which pages should it run on?
    • Dependencies on other modules

LITA National Forum 2009

how modules communicate

yazproxy

Z39.50 Gateway

ILS-DI/libxessjangle

ILS snapshot

Presearch

Service

Tuple Space

Embedded

Display

(,,)

Keyword

Scraper

(keyword: “Firefox Hacks”,

location:, …)

How Modules Communicate

LibApp

Service

Module

Modules communicate

by placing data into

a shared space

LITA National Forum 2009

usage case 3 intelligent coins processing
Usage Case 3: Intelligent COinS Processing
  • COinS: Context Object in <Span>
    • Metadata embedded in many pages (Wikipedia, etc.)
    • See http://ocoins.info
  • LibX 1.0 processes them and links to OpenURL resolver
  • LibX 2.0 actually contacts OpenURL resolver and places direct link to fulltext, if available

<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft_id=info:pmid/16646082&rft.genre=article">

LITA National Forum 2009

coins module 1 collecting coins
COinS Module 1: Collecting COinS

Metadata:

Runs on all pages

Include: /.*/

Description: Find COinS

Produces: { coins }

Require: jquery

$(“span.Z3988").each(function () {

libx.space.write({

coins: this,

contextobj: this.getAttribute('title')

});

});

Code:

Find all coins,

Place information

In tuple space

LITA National Forum 2009

coins module 2 processing coins
COinS Module 2: Processing COinS

Metadata:

Runs on all pages where

a COinS was found

Include: /.*/

Description: Link COinS

Guarded-By: { coins: ANY }

Require: legacy-cues

var cue = new libx.cues.StandardCoins(tuple.contextobj);

cue.insertBefore(tuple.coins);

var link360 = libx.services.link360.getLink360(libx.edition);

if (link360)

link360.getMetadata({ … });

Code

LITA National Forum 2009

libx 2 0 project timeline
LibX 2.0 Project Timeline

Step 1:Build Core

Step 2: Metadesign

Step 3:Services

  • Build client side execution env
  • Document Developer API
  • Define how to publish Libapps
  • Prototype modules & libapps
  • Define Metadata Schema for Libapps
  • Implement LibAppBuilder,Web-Based Interface to manage Modules, Libapps & Packages
  • Developers implement modules
  • Edition maintainers create new libapps

% Complete

% Complete

% Complete

LITA National Forum 2009

step 1 the libx core
Step 1: The LibX Core
  • Transition of code from LibX 1.0 to LibX 2.0
    • Complete redesign of LibX client code
    • Make code fully browser-independent
    • Hot updatable
    • Document full API to allow outside developer to contribute
    • Document Atom format for publishing LibX libapps
  • Developer Website
    • http://developers.libx.org
  • Mailing List
    • libx-dev@googlegroups.com

LITA National Forum 2009

step 2 libapp builder
Step 2: LibApp Builder
  • Meta-design Engine
    • Extension of the LibX Edition Builder
  • Contains database of modules, libapps, and packages
    • Allow searching, reuse
  • Consistency checking
  • Allows edition maintainer to offer packages to their users
    • Facilitates incremental deployment of libapps

LITA National Forum 2009

step 3 services
Step 3: Services
  • We will develop a “LibX Core” package of libapps, including but not limited to:
    • All existing LibX 1.0 functionality
    • Support for obtaining holdings & availability from major OPACs
  • Looking for your ideas: where would you like to see the library’s presence on the web?

LITA National Forum 2009

libx team
LibX Team
  • Annette Bailey
  • Godmar Back
  • Kyrille Goldbeck
  • Travis Webb
  • Alumni
    • Nathan Baker
    • Mike Doyle
    • Tilottama Gaat
    • Tobias Wieschnowsky

LITA National Forum 2009