www.angel.ac.uk authenticated networked guided environment for learning - secure integration of...

www.angel.ac.uk

authenticated networked guided environment for learning - secure integration of learning environments with digital libraries -

Current Technical Solutions

John Eyre

De Montfort University, Leicester

DNER ANGEL Project partner

JCIEL MLE Project

ALT-C 2002, Sunderland

Scenario 1Users

Web Browser

Local LDAP system

MLE

MLE User DB

User goes to MLE web site

MLE presents Login screen

User enters Login details

MLE checks with local LDAP

User is not recognised

Authentication Systems

Databases (R+L)

LDAP

SRS

SMB

VLE

(NT, HTAccess, Unix Password,

Netware)

ANGEL UM checks its Targets

Positive reply from VLE,

Includes list of Groups (Modules).

MLE then asks Local ANGEL

XML Config File

ANGEL

User Manager

User Authentication

<?xml version="1.0"?>

<!DOCTYPE angel:um_config SYSTEM "http://www.angel.ac.uk/dtds/UM_config.dtd">



<angel:um_config xmlns:angel="http://www.angel.ac.uk/namespace">



<angel:hostname>soar.dmu.ac.uk</angel:hostname>

<angel:port type="unprotected">5556</angel:port>

<angel:errorlog switch="on">d:/angel/UM_errorlogfile.txt</angel:errorlog>

<angel:usagelog switch="on">d:/angel/UM_usagelogfile.txt</angel:usagelog>

<angel:permittedHost>soar.dmu.ac.uk</angel:permittedHost>



<angel:um_server>

<angel:auth_handlers>

<angel:auth_handler>

<angel:name>LDAPservice</angel:name>

<angel:type>uk.ac.angel.um.LDAPSearch</angel:type>

<angel:directoryservice>LDAPservice</angel:directoryservice>

<angel:location>ldap://ldap1.dmu.ac.uk</angel:location>


<angel:basedn>o=dmu,c=GB</angel:basedn>

<angel:class>LDAPSearch</angel:class>

<angel:timeout>2000</angel:timeout>

</angel:auth_handler>


<angel:name>SMBservice</angel:name>

<angel:type>uk.ac.angel.um.SMBSearch</angel:type>

<angel:directoryservice>SMBservice</angel:directoryservice>

<angel:location>http://smb.dmu.ac.uk</angel:location>

<angel:smbserver>smb</angel:smbserver>

<angel:sharedresource>shared/auth.txt</angel:sharedresource>

<angel:class>SMBSearch</angel:class>


</angel:auth_handler> …

<angel:directory_service>

<angel:name>QLSservice</angel:name>

<angel:type>uk.ac.angel.um.QLSDirectory</angel:type>

<angel:location>146.227.99.999</angel:location>



<angel:stylesheet>c:/angel/ss1.xsl</angel:stylesheet>

<angel:searchfield>

<angel:matches>

<angel:match>

<angel:result>CC101</angel:result>

<angel:group>CC101.dmu.ac.uk</angel:group>

</angel:match>

<angel:match>



</angel:match>

<angel:match>

<angel:result>CSE</angel:result>

<angel:group>ComputerScienceEngineering.dmu.ac.uk</angel:group>

</angel:match>

</angel:matches>

</angel:searchfield>

</angel:directory_service> …

ANGEL User Manager - XML Configuration File




























<angel:searchfield>

<angel:matches>

<angel:match>










<angel:searchfield>

<angel:matches>

<angel:match>

Scenario 2VLE User AccountsUsers

Web Browser

MLE

MLE User DB

Academic User goes to MLE web site and queries SRS for details of students registered on his Module.

SRS

VLE The appropriate data is transferred from SRS to VLE using Specifications such as IMS Enterprise.

XML Config File

ANGEL

User Manager

The Academic then clicks the option to create and load a course/module in a specified VLE.

ANGEL determines the appropriate protocols for querying the SRS and Creating accounts in the specified VLE.

Users

Web Browser

MLE

MLE User DB

Academic User has added a link to a resource, from a course page in the VLE, for all his students to use.

VLE

A Student User logs in to the Institutional MLE and follows the screens to the VLE (auto-login to VLE at appropriate position)

Scenario 3Resource Management

XML Config File

ANGEL

Resource Manager

The URL to the resource is a Search against ANGEL, and includes information about the users group and the resource ID. ANGEL determines where best to get that resource from, for members of THIS group.

Scenario 3Resource Management

Academic User has added a link to a resource, from a course page in the VLE, for all his students to use.

A Student User logs in to the Institutional MLE and follows the screens to the VLE (auto-login to VLE at appropriate position)

Appropriate cookies or certificates are transferred to the users machine and the browser is pointed to the required resource server, without the user having to login again. This uses Specifications such as Shibboleth and PAPI.

XML Config File

ANGEL

Resource Manager

Local & Remote

Resources

LMS

The URL to the resource is a Search against ANGEL, and includes information about the users group and the resource ID. ANGEL determines where best to get that resource from, for members of THIS group.

VLE

Users

Web Browser

ANGEL transfers Cookie to Browser, and redirects Browser to point at appropriate resource

Scenario 4Resource Discovery

VLE When a student clicks this resource link, they could be presented with a number of options, including purchase information from the University Book Shop or Amazon, or just be presented with the electronic version directly. Scenario 3.

Academic User goes to MLE web site and queries Library Services for resources on engineering. Once a single item is identified, a feature in the MLE allows the academic to associate the resource with a course and ask ANGEL to add it to the VLE resources page.

Users

Web Browser

MLE

MLE User DB

Local & Remote

Resources

LMS

ANGEL takes the Resource ID, the Course ID and the VLE reference and creates a search URL to insert in the VLE page.

XML Config File

ANGEL

User & Resource Manager

www.angel.ac.uk

authenticated networked guided environment for learning - secure integration of learning environments with digital libraries -

Conclusion

• ANGEL can be used by other interface tools (VLE/MLE/ITE/Portals etc)

• ANGEL can support multiple systems (SRS/LMS/resource services)

• Used to support a wide range of tasks

• A number of Scenarios already implemented

• Many more scenario variations are possible

www.angel.ac.uk authenticated networked guided environment for learning - secure integration of...

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