DSpace at Open Universiteit >
d. Learning Media >
4. LMedia: Deliverables, Reports, Work Documents >
Please use this identifier to cite or link to this item:
|Title: ||ICOPER Deliverable D-1.2 Open ICOPER Content Space Implementation of 2nd Generation of Open ICOPER Content Space including Integration Mini Case Studies|
|Authors: ||Totschnig, Michael|
Open ICOPER Content Space
|Issue Date: ||15-Feb-2011|
|Abstract: ||In the context of the ICOPER project, the Open ICOPER Content Space (OICS) has been
defined as the umbrella combining a set of specialised interconnected repositories, content and
tools, as a test bed for the specifications and standards that are part of the ICOPER Reference
Model (IRM). The OICS has been conceived as an infrastructure for sharing educational
resources, with sophisticated services for publication, enrichment, search and retrieval.
Additionally the OICS provides the services for the management of learning outcome profiles.
This deliverable documents the final status of the OICS as with end of January 2011. For the
generation of the OICS, described in D1.1, we had concentrated on building an
infrastructure for harvesting and aggregating content provided by members of the consortium.
We are now able to use this infrastructure as the underlying framework for implementing
prototypical interfaces that allow learners and learning facilitators to engage in processes of
outcome based learning.
This deliverables starts with describing the types of shareable educational resources that the
OICS deals with and documents the data models implemented by the OICS: for users and
groups, for repositories and collections, for learning content and instructional models, for
learning outcomes, for achievement profiles and for learning opportunities. These data models
have been defined in cooperation with other ICOPER work packages, mainly 2 and 3. For
learning content and instructional models, we chose the LOM standard as base, since it
provides the most complete set of attributes for describing educational properties of an object.
The main challenge consisted in defining, implementing and validating an application profile
(AP), which would allow us to capture information about learning content and instructional
models needed in the context of processes of outcome-oriented education: The main features
of the ICOPER LOM AP that extend the base LOM standard allow
to capture the relationships between instructional models;
to distinguish between different types of comments;
to link instructional models to learning outcome definitions;
to define the type of shareable educational resource according to the ICOPER
and to provide the packaging format of a learning design.
Several technical challenges were met during the implementation of the ICOPER LOM AP,
e.g. with respect to validating constraints for vocabularies, implementing persistent, stable and
resolvable identifiers, and transforming custom formats used by content providers.
In order to make the OICS content accessible from those environments where learning
processes are implemented (learning management systems, personal learning environments
and social networks), we have defined a Middle Layer API following the design principles of
a Service Oriented Architecture. We argue how following these principles allowed us to
achieve important quality attributes like interoperability, scalability, reliability, configurability
and testability. We present a comprehensive, documentation for the Middle Layer API and
three alternative bindings that are optimized for specific client requirements.
Section 5 is dedicated to a series of Integration Mini Case Studies which together present the
main achievements of WP1: inclusion of six different sources for learning outcome definitions totalling 3,781
integration of 19 content providers totalling around 80,000 resources, providing more
than 17,500 documented hours of instructional content;
experimental implementation of the Metadata for Learning Opportunities (MLO)
specification and import of course catalogues from two universities;
implementation of OICS related functionality into 14 different client environments
jointly covering a complex workflow of outcome-oriented education including the
definition of learning outcomes, the authoring of instructional models, the delivery of
learning designs through a learning management system and learners‘ management of
learning needs, achievements and assessment records.
OICS search functionality has been integrated into the ICOPER project website. It
allows searching and retrieving of all types of shareable educational resources and
display of a user‘s achieved learning outcomes.
The problems solved during the development of the OICS infrastructure, and some results of
the end user evaluation of the OICS client applications lead us to formulate a set of
recommendations (Section 7) that are grouped with respect to the development life cycle
phase they address.
We have learnt that the following key factors need to be taken into account during the design
of a brokerage infrastructure for educational resources:
maintenance of consistent technical information through a registry service;
development of an interface specification through a managed community process that
takes into account the requirements of different client contexts;
definition of an application profile and validation of all ingested resources;
user perception of relevancy, copyright and privacy;
integration of repository services with social networks which increasingly become part
of educational processes.
For the setup of the infrastructure, end-user evaluation showed that quantity and quality of
content are most relevant for users.
For a successful deployment of the infrastructure, we recommend the use of testing
environments and monitoring services and of a service capable of managing persistent and
unique identifiers for resources.
The complete OICS infrastructure is made available as Open Source software. Installation
instructions are provided on the ICOPER web site. The OICS infrastructure has been
successfully transferred into a different context within the German SpITKom project as
described in Section 6.2.|
|Description: ||Totschnig, M. (2011). ICOPER Deliverable D-1.2 Open ICOPER Content Space Implementation of 2nd Generation of Open ICOPER Content Space including Integration Mini Case Studies. Vienna: WU Vienna; ICOPER. [contributors: Joris Klerkx, Michael Derntl, Jad Najjar, Bernd Simon, Gonzalo Parra, Bram Vandeputte, Jose Luis Santos, Robert John Robertson, Anh Vu Nguyen-Ngoc, Philipp Prenner, Gytis Cibulskis, Evaldas Karazinas, Andres Franco, Israel Gutiérrez Rojas, Derick Leony, Mikael Karlsson, Henning Eriksson, Martin Sillaots, Aili Madisson, Pjotr Savitski, Jacek Bubak, Elisabetta Parodi, Paolo Tenerini, Michele Dicerto, Roland Klemke, Marion Gruber, Stefaan Ternier, Sören Unruh, Birgit Schmitz, Patrick Pekczynski, Daniel Müller, Johannes Götzinger, Franz Müller, Fredrik Paulsson, Jenny Gray, Jukka Purma, Susanne Neumann, Natalie Masrujeh, Michael Aram, Andreas Mulley, Franz Penz, Bernd Simon, Gustaf Neumann]|
|Appears in Collections:||4. LMedia: Deliverables, Reports, Work Documents|
This item is licensed under a Creative Commons License
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.