Massachusetts Institute of Technology Page 1 Open Knowledge Initiative CSG - Princeton, 05/07/03.

Massachusetts Institute of Technology

Open Knowledge Initiative

CSG - Princeton, 05/07/03


Elements of an enabling architecture/framework for learning systems

What are strategies for interoperability, scalability, and maintainability?

How might we migrate from an environment based on proprietary legacy tools to a standards-based environment that promotes interoperable systems?

What are the requirements for development/authoring tools that enable rapid prototyping, ease of maintenance, content adaptation, and collaborative development?


Elements of an enabling architecture/framework for learning systems

What is the impact of emerging specifications and standards (e.g., XML, SCORM, IMS, OKI SPECS, the semantic Web.....) on IT-enabled learning, and on managing rapid changes in the technology/tools environment


Data Specifications – IMS/SCORM

EnterpriseApplication A

EnterpriseApplication B

Data


An ApplicationBefore O.K.I.


OKI in a Nutshell



OKI in a Nutshell

An ApplicationAfter O.K.I.


Web Application on O.K.I. Services

HTML HTML

Web ServerStellar


Web and Client App Interoperability

HTML

Stellar


O.K.I. is:

Learning Technology Services Architecture

Open Service Interface Definitions (OSIDs)

Open source implementations

Open source educational applications

Community


O.K.I. Service Interface Definitions (OSIDs)

OSID's define how components of a learning technology environment communicate with: Other learning technology components Other campus systems Common infrastructure services

OSID’s are: Described abstractly and cast as Java APIs Royalty free Stable – license/branding prohibits modification

Supported by reference implementations and documentation


The OSIDs“Common Services”

Authentication Authorization DBC Logging Shared Filing Dictionary Hierarchy

“Extended Services”

User Messaging Scheduling Workflow

“Educational Services”

Class Admin Digital Repository Assessment Grading


OSID Abstraction and Bindings

Abstract Service Definition

Generators

Java InterfacesDocumentation

Other…


OSID Based Projects

University of Michigan

Stanford University

VUE -- Tufts University

Scorm Player --University of Cambridge

Digital Library Systems -- Dspace, Fedora

MIT

Indiana University


Current O.K.I. SID Community Institutional Partners

MIT, Stanford University, Dartmouth College, North Carolina State University, University of Michigan, Indiana University, University of Pennsylvania, University of Wisconsin-Madison, University of Cambridge

IMS Global Learning Consortium Members Assorted Institutional Projects


O.K.I. Status

Common Service OSIDs 1.0rc in community review SourceForge Publication SOON!

Educational Service OSID's in beta release Reference implementations and reference code available for

some OSIDs “LMS” systems expected Summer 2003 OKI “Starter Kit” release in Summer 2003 Vendor Engagement

Sun Microsystems Apple WebCT Blackboard

OKI/IMS Interoperabilty Lab 2003 -- July 8,9,10


Example: Digital Repository OSID


OKI Digital Repository OSID What functions do Educational Applications

need from Digital Repositories? How can we complement existing and future

data Specifications? How do we allow for systems of record for

learning assets? How do we support multiple Repositories with

multiple protocols


Many Repositories

IDC

iMac

I

BM

Remote

Local

IDC

Institutional


Many Protocols

IDC

iMac

I

BM

IDC

SOAPSRW

HTML

Z39.50

File System

METS

Remote

Local

Institutional


Many Data Specs/Standards

IDC

iMac

I

BM

IDC

SOAPSRW

HTML

Z39.50

File System

OAI

Remote

Local

Institutional

MarkDC

LOM

SCORM

METS

IMS CP


DR Demo…


Application Profile

Technology Profile

Technology Profile

Technology Profile

Technology Profile

Service Definitions

DataDefinitions

Domain Profile


Dimensions of Interoperability

Data Definitions

Technology Choices

UI/Application Frameworks

Service Definitions


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Massachusetts Institute of Technology Page 1 Open Knowledge Initiative CSG - Princeton, 05/07/03.

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Transcript of Massachusetts Institute of Technology Page 1 Open Knowledge Initiative CSG - Princeton, 05/07/03.