Educational design language: Difference between revisions

The educational technology and digital learning wiki
Jump to navigation Jump to search
mNo edit summary
mNo edit summary
Line 58: Line 58:
* [[CompendiumLD]]. A concept map editor for learning design. Compendium LD maps also could be given to learners.
* [[CompendiumLD]]. A concept map editor for learning design. Compendium LD maps also could be given to learners.


=== Formalisms and tools different from IMS LS ===
=== Formalisms and tools different from IMS LD ===


Attemps to enlargen or to modify the IMS-LD framework. These projects include their own meta-model (i.e. their representation of what a pedagogical scenario is) plus a toolkit for design and execution. Most are still very much under development.
Attemps to enlargen or to modify the IMS-LD framework. These projects include their own meta-model (i.e. their representation of what a pedagogical scenario is) plus a toolkit for design and execution. Most are still very much under development.


* [[Learning design language]] (LDL)
* [[:fr:Learning design language]] (LDL)
* [[Modèle conceptuel ISIS]]
* [[:fr:Modèle conceptuel ISIS]]


=== Design and execution systems in production ===
=== Design and execution systems in production ===


Il s'agit de systèmes opérationnels qui permettent de produire et d'exécuter des scénarios. LAMS comprend un éditeur visuel de conception en ligne.
This category includes operational online authoring and execution systems that support [[learning design]]. LAMS has a visual design editor, CeLS a forms-based interface.


* [[LAMS]] (voir aussi [[LAMS]]) (système d'édition/exécution learning design)
* [[LAMS]] (voir aussi [[LAMS]]) (système d'édition/exécution learning design)
Line 74: Line 74:
=== CSCL research ===
=== CSCL research ===


Le monde du [[en:CSCL]] a aussi commencé a réfléchir sur une manière de représenter ce qu'ils appellent des macro-scripts de façon plus structurée.
The [[CSCL|Computer-supported collaborative learning]] (CSCL) community also started to work modelling what they called scripts and to develop notational systems, e.g. see Kobbe et al. (2007) or Dillenbourg & Tchounikine (2007).


* [[Script collaboratif (Kaleidoscope)]] (voir aussi anglais: [[CSCL script]]) pour le concept
* See [[CSCL script]]) for the concept
* [[CPM]] (outil développé dans le cadre d'une thèse, disponible mais pas forcément encore en développement)
* [[CPM]] (a UML profile and system somewhere in between CSCL and learning design)
* [[Collage]] A macro-script configuration tool (based on the idea of flow patterms)
* [[Cool Modes]] A system that includes several visual design tools for learners (and teachers). There exist also other [[microworld]] systems that include visual design languages.


=== Autres formalismes ===
=== Other formalisms ===


IMS SS est un langage développé dans la logique des logiciels EAO / pédagogie de maîtrise. Il fait partie du profil SCORM 2004, une norme qu'on retrouve déjà dans l'industrie, mais pas du tout dans les [[LMS]] utilisé dans l'éducation universitaire.
IMS Simple sequencing is a formalism that supports [[mastery learning]]. It is included in the SCORM 2004 profile (version 3 and later), but it is very difficult to find an [[LMS]] and design tools that support this standard.


* [[IMS Simple Sequencing]] (IMS SS, schéma)
* [[IMS Simple Sequencing]] (IMS SS, XSD schema)
* [[Reload Editor]] permet d'éditer IMS SS, mais ce n'est pas facile ...
* [[Reload Editor]]. The latest version can edit IMS SS, but it's not simple.


=== Systèmes centrés sur le contenu ===
=== Systems that focus on the semantics of contents ===
Ces formalismes et l'outillage associés permettent de rédiger et de déployer des textes pédagogiques rédigés selon une ou plusieurs "méthodes".
 
* [[Learning Material Markup Language]] (schéma et outil d'édition/exportation)
These formalisms and associated tools allow to create pedagogical documents with semantic structure (and therefore markup).
* [[eLML]] (schéma et outil d'édition/exportation de textes pédagogiques)
 
* [[Learning Material Markup Language]] (schema and editing/export tool to HTML/SCORM 1.2)
* [[eLML]] (schema, editing and export to HTML/SCORM 1.2)


=== Systèmes légers ===
=== Systèmes légers ===
Line 148: Line 152:


* Dessus, Philippe et Schneider, Daniel Scénarisation de l'enseignement et contraintes de la situation, In J.-P. Pernin & H. Godinet (2006). (Eds.), Colloque Scénariser l'enseignement et l'apprentissage : une nouvelle compétence pour le praticien ? (pp. 13-18). Lyon : INRP. [http://web.upmf-grenoble.fr/sciedu/pdessus/scenario06.pdf PDF]
* Dessus, Philippe et Schneider, Daniel Scénarisation de l'enseignement et contraintes de la situation, In J.-P. Pernin & H. Godinet (2006). (Eds.), Colloque Scénariser l'enseignement et l'apprentissage : une nouvelle compétence pour le praticien ? (pp. 13-18). Lyon : INRP. [http://web.upmf-grenoble.fr/sciedu/pdessus/scenario06.pdf PDF]
* Dillenbourg, P. & P. Tchounikine (2007). Flexibility in macro-scripts for computer-supported collaborative learning, Journal of Computer Assisted Learning, 23 (1). [http://dx.doi.org/10.1111/j.1365-2729.2007.00191.x DOI 10.1111/j.1365-2729.2007.00191.x]
* Dillenbourg, Pierre & Patrick Jermann (2007), Designing Integrative Scripts. In: Fischer, F., Kollar, I., Mandl, H., Haake, J. (eds.): Scripting Computer-Supported Collaborative Learning. Cognitive, Computational, and Educational Perspectives. Springer, New York.


* Fowler, M., UML distilled: A brief guide to the standard object modeling language. Addison Wesley, Boston, MA, 2003.
* Fowler, M., UML distilled: A brief guide to the standard object modeling language. Addison Wesley, Boston, MA, 2003.
Line 164: Line 172:


* Griffiths, D. et Blat, J. (2005). The role of teachers in editing and authoring units of learning using IMS learning design. Advanced Technology for Learning, 2(4). [http://www.opendockproject.org/documents/background_papers/atl_05_10/attach/griffiths_atl_2005.pdf PDF] and [http://hdl.handle.net/1820/586 PDF]
* Griffiths, D. et Blat, J. (2005). The role of teachers in editing and authoring units of learning using IMS learning design. Advanced Technology for Learning, 2(4). [http://www.opendockproject.org/documents/background_papers/atl_05_10/attach/griffiths_atl_2005.pdf PDF] and [http://hdl.handle.net/1820/586 PDF]
* Kobbe, L. Weinberger, A. Dillenbourg, P. Harrer, A. Hämäläinen, R. Hàkkinen, P. Fischer, F. (2007). Specifying computer-supported collaboration scripts, International Journal Of Computer-Supported Collaborative Learning, 2 (2-3) 211-224.


* Koper R. (2001) "Modelling Units of Study from a pedagogical perspective: The pedagogical metamodel behind EML" Technical Report OUNL June, 2001 http://eml.ou.nl
* Koper R. (2001) "Modelling Units of Study from a pedagogical perspective: The pedagogical metamodel behind EML" Technical Report OUNL June, 2001 http://eml.ou.nl

Revision as of 13:18, 19 February 2009

This article or section is currently under construction

In principle, someone is working on it and there should be a better version in a not so distant future.
If you want to modify this page, please discuss it with the person working on it (see the "history")

Draft

<pageby nominor="false" comments="false"/>

Definition

And educational design language is a notation system for creating educational designs, e.g. courses, modules, or scenarios.

An educational design language is “a tool that designers use to communicate designs, plans, and intentions to each other and to the users of their artifacts” (Botturi, 2006: 268). “Notational systems, used in mature fields of study, are closely related to design languages. The future of a technological field depends on the ability to communicate ideas and changes with others in the field. Instructional technology is one field that can benefit from a notation system enabling designers to duplicate, execute, and communicate their ideas” (Waters & Gibbons 2004: 57).

Types of design languages

Botturi, Derntl,Boot & Figl (2006) propose a classification system to describe educational design langages. See also Developing design documents (3D) model.

  • Stratification: flat or layered. Is there unique representation or are there several "tools" to describe various objets like in coUML ?
  • Formalization: between formel or informel. E.g. UML and XML-based vocabularies are both formal languages.
  • Elaboration: conceptual, specification or implementation. These levels are based on the UML model (Fowler, 2003): the conceptuel level allows to gain a global view of a design and its rationale, the specification includes all the details, and the implementation level includes includes sufficient precision to create executive code. E.g. CompendiumLD is a concept map edito, coUML can be considered a set of specification languages, the LAMS editor produces directly executable code.
  • Perspective: singular or multiple. Is there a same view or different views to describe a design? E2ML for instance allows to model both structural and temporal relations between activities.
  • Notation system: none, textual, visual. If there is a notation system, it can be either visual (e.g. like in the informal CompendiumLD editor or a formal UML-derived language) or textual like the typical XML-based educational modeling languages like IMS Learning Design.

A list of systems for educational design

This list puts together systems for educational design into some more or less "natural" categories. We don't include just design languages, but systems that in one way or another support pedagogical design. Simple content-based e-learning languages and tools are not included of course...

IMS Learning Design and basic editors

IMS Learning Design is a formal langage (UML and XML) that is standardised. Designers are not really expected to directly use this language, it's rather expected that they use a high-level editor that then can export to IMS LD. In the same way the e-learning content editors don't need to understand SCORM 1.2.

Design tools that can export to IMS-LD or another executable formalism

There exist several variants. This category includes both visual design tools and form-based editors. Some of them can export to IMS LD. Some are general purpose and some like collage are specialized. Some tools are operational, some just research systems.

Visual design/modelling languages

Some designers use one or several UML languages like UML activity diagrams. Other extend the UML framework and others use their own notational system. Most of these systems are only used by a very small population. Except for the UML tools which are popular in computer science, these languages are all very recent. Usually, they don't produce executable code.

  • BPEL (Business Process Execution Language, used in Model-Driven Learning Design)
  • UML (in particular UML class diagrams and UML activity diagrams)
  • E2ML Visual scenario design language
  • coUML Visual scenario and content design language
  • PALO Visual scenario design language
  • poEML Visual collaborative scenario design language

Visual design languages

Same as above, but easier to use, since not formal. Doesn't produce executable code.

  • CompendiumLD. A concept map editor for learning design. Compendium LD maps also could be given to learners.

Formalisms and tools different from IMS LD

Attemps to enlargen or to modify the IMS-LD framework. These projects include their own meta-model (i.e. their representation of what a pedagogical scenario is) plus a toolkit for design and execution. Most are still very much under development.

Design and execution systems in production

This category includes operational online authoring and execution systems that support learning design. LAMS has a visual design editor, CeLS a forms-based interface.

  • LAMS (voir aussi LAMS) (système d'édition/exécution learning design)
  • CeLS

CSCL research

The Computer-supported collaborative learning (CSCL) community also started to work modelling what they called scripts and to develop notational systems, e.g. see Kobbe et al. (2007) or Dillenbourg & Tchounikine (2007).

  • See CSCL script) for the concept
  • CPM (a UML profile and system somewhere in between CSCL and learning design)
  • Collage A macro-script configuration tool (based on the idea of flow patterms)
  • Cool Modes A system that includes several visual design tools for learners (and teachers). There exist also other microworld systems that include visual design languages.

Other formalisms

IMS Simple sequencing is a formalism that supports mastery learning. It is included in the SCORM 2004 profile (version 3 and later), but it is very difficult to find an LMS and design tools that support this standard.

Systems that focus on the semantics of contents

These formalisms and associated tools allow to create pedagogical documents with semantic structure (and therefore markup).

Systèmes légers

Il s'agit ici de ce qu'on appelle souvent "teacher tools", c.a.d des outils qui lui permettent de préparer des leçons, sans trop insister sur la scénarisation.

Alternatives (parfois des anti-modèles

Langages de conception multimédia visuels

Dépositoires

Des sites web qui permettent de mutualiser des scénarios. Certains de ces outils ont un dépositoire associé (c.f. learning object repository. Parfois il est même intégré avec l'outil. Voici quelques exemples:

  • Cloudworks est un dépositoire
  • Des systèmes comme LAMS ont une community page ou on peut enregistrer et télécharger des paquets LAMS.
  • Dans des systèmes comme CeLS, le dépositoire est intégré dans le logiciels

Links

Bibliography

  • Brabazon, T (2002) Digital Hemlock: Internet Education and the Poisoning of Teaching, Sydney: University of New South Wales Press
  • Abdallah, F., Toffolon, C., and Warin, B. 2008. Models Transformation to Implement a Project-Based Collaborative Learning (PBCL) Scenario: Moodle Case Study. In Proceedings of the 2008 Eighth IEEE international Conference on Advanced Learning Technologies - Volume 00 (July 01 - 05, 2008). ICALT. IEEE Computer Society, Washington, DC, 639-643. DOI= http://dx.doi.org/10.1109/ICALT.2008.174
  • Boot Eddy W.; Jon Nelson, Jeroen J.G. van Merriënboer, Andrew S. Gibbons (2007). Stratification, elaboration and formalisation of design documents: Effects on the production of instructional materials, British Journal of Educational Technology 38 (5), 917–933. doi:10.1111/j.1467-8535.2006.00679.x
  • Botturi, L. (2005). A Framework for the Evaluation of Visual Languages for Instructional Design: the Case of E2ML. Journal of Interactive Learning Research. 16 (4), pp. 329-351. Norfolk, VA: AACE. Abstract/PDF
  • Botturi, L. (2006). E2ML. A visual language for the design of instruction. Educational Technologies Research & Development, 54(3), 265-293. Abstract/PDF (Access restricted)
  • Botturi, L. and S. Todd Stubbs (eds.) (2007). Handbook of Visual Languages for Instructional Design: Theories and Practices, Information Science Reference. ISBN 1599047292, Google books preview
  • Botturi, L., Derntl, M., Boot, E., & Figl, K. (2006). A Classification Framework for Educational Modeling Languages in Instructional Design. Proceedings of The 6th IEEE International Conference on Advanced Learning Technologies, 1216-1220 PDF (also here).
  • Botturi, L., Stubbs, T. (eds.) (2007). Handbook of Visual Langauges in Instructional Design: Theories and Pratices. Hershey, PA: Idea Group. PDF Flyer. The best reader currently, but fairly expensive - Daniel K. Schneider 14:48, 28 August 2008 (UTC). ISBN 978-1-59904-729-4
  • Brady, Aoife; Owen Conlan, Vincent Wade, and Declan Dagger (2008). Personalised Learning Objects, in Nedjl, Wolfgang; Judy Kay, Pearl Pu, Eelco Herder (eds.) Adaptive Hypermedia and Adaptive Web-Based Systems, Proceedings of the 5th International Conference on Adaptive Hypermedia . Springer. ISBN 3540709843
  • Breuker, J., Muntjewerff, A., and Bredewej, B. (1999) "Ontological modeling for designing educational systems" I* PALO n Proceedings of the AIED 99 Workshop on Ontologies for Educational Systems, Le Mans, France. IOS Pressp
  • Burgos, D., Arnaud, M., Neuhauser, P., Koper, R. IMS Learning Design : la flexibilité pédagogique au service des besoins de la e-formation. In La Revue de l'EPI. France: L'association Enseignement Public et Informatique [1]. Available at and http://hdl.handle.net/1820/470.
  • Conole, Gráinne and Karen Fill (2005). A learning design toolkit to create pedagogically effective learning activities. Journal of Interactive Media in Education (Advances in Learning Design. Special Issue, eds. Colin Tattersall, Rob Koper), 2005/08. ISSN:1365-893X Abstract (PDF/HTML open access)
  • Del Cid, Jose Pablo Escobedo, Luis de la Fuente Valentín, Sergio Gutiérrez, Abelardo Pardo, Carlos Delgado Kloos (2007). Implementation of a Learning Design Run-Time Environment for the .LRN Learning Management System. Journal of Interactive Media in Education (Adaptation and IMS Learning Design. Special Issue, ed. Daniel Burgos), 2007/07. ISSN:1365-893X
  • Dessus, Philippe et Schneider, Daniel Scénarisation de l'enseignement et contraintes de la situation, In J.-P. Pernin & H. Godinet (2006). (Eds.), Colloque Scénariser l'enseignement et l'apprentissage : une nouvelle compétence pour le praticien ? (pp. 13-18). Lyon : INRP. PDF
  • Dillenbourg, P. & P. Tchounikine (2007). Flexibility in macro-scripts for computer-supported collaborative learning, Journal of Computer Assisted Learning, 23 (1). DOI 10.1111/j.1365-2729.2007.00191.x
  • Dillenbourg, Pierre & Patrick Jermann (2007), Designing Integrative Scripts. In: Fischer, F., Kollar, I., Mandl, H., Haake, J. (eds.): Scripting Computer-Supported Collaborative Learning. Cognitive, Computational, and Educational Perspectives. Springer, New York.
  • Fowler, M., UML distilled: A brief guide to the standard object modeling language. Addison Wesley, Boston, MA, 2003.
  • Friesen, Norm, (2004). A Gentle Introduction to Technical E-learning Standards, Canadian Journal of Learning and Technology Volume 30(3) Fall / automne 2004. HTML , retrieved 17:52, 5 October 2006 (MEST).
  • Friesen, Norm, (2004). The E-learning Standardization Landscape, HTML , retrieved 17:52, 5 October 2006 (MEST).
  • Gibbons, A. S. (2003). What and how designers design? A theory of design structure. TechTrends, 47(5), 22–27. PDF (Access restricted)
  • Gibbons, A. S., Nelson, J. & Richards, R. (2000). "The nature and origin of instructional objects" In D. A. Wiley (Ed.)," The Instructional Use of Learning Objects". Bloomington: Association for Educational Communications and Technology.
  • Gibbons, Andrew, S. and Erin K. Brewer, (2005) “Elementary principles of design languages and design notation systems for instructional design”. In J.M. Spector, C. Ohrazda, A. Van Schaack, and D. Wiley (Eds.), Innovations to instructional technology: Essays in honor of M. David Merrill, Lawrence Erlbaum Associates, Mahwah NJ, pp. 111-129.
  • Giesbers, B., van Bruggen, J., Hermans, H., Joosten-ten Brinke, D., Burgers, J., Koper, R., & Latour, I. (2007). Towards a methodology for educational modelling: a case in educational assessment. Educational Technology & Society, 10 (1), 237-247. PDF
  • Griffiths, D. et Blat, J. (2005). The role of teachers in editing and authoring units of learning using IMS learning design. Advanced Technology for Learning, 2(4). PDF and PDF
  • Kobbe, L. Weinberger, A. Dillenbourg, P. Harrer, A. Hämäläinen, R. Hàkkinen, P. Fischer, F. (2007). Specifying computer-supported collaboration scripts, International Journal Of Computer-Supported Collaborative Learning, 2 (2-3) 211-224.
  • Koper R. (2001) "Modelling Units of Study from a pedagogical perspective: The pedagogical metamodel behind EML" Technical Report OUNL June, 2001 http://eml.ou.nl
  • Koper, R. (2000) "From change to renewal: Educational technology foundations of electronic learning environments" Technical Report, Open University of the Nederland (OUNL) http://eml.ou.nl
  • Koper, R. Educational Modelling Language: adding instructional design to existing specification, unpublished paper (?), PDF
  • Koper, R. and Manderveld, Jocelyn (2004). Educational modelling language: modelling reusable, interoperable, rich and personalised units of learnings, British Journal of Educational Technology, Vol 35 No 5 2004, 537-551.
  • Koper, R., Rodr¡guez-Artacho, M., Rawlings, A., Lefrere, P., van Rosmalen, P. (2002) "Survey of Educational Modeling Languages" Technical Report of the CEN/ISSS Learning Technologies Workshop Available On-Line: HTML (dead link, it's amazing that the european standardization body can't keep URLs online ...)
  • Laforcade, P., Zendagui, B., and Barré, V. 2008. A Domain-Specific-Modeling Approach to Support Scenarios-Based Instructional Design. In Proceedings of the 3rd European Conference on Technology Enhanced Learning: Times of Convergence: Technologies Across Learning Contexts (Maastricht, The Netherlands, September 16 - 19, 2008). P. Dillenbourg and M. Specht, Eds. Lecture Notes In Computer Science, vol. 5192. Springer-Verlag, Berlin, Heidelberg, 185-196. DOI= http://dx.doi.org/10.1007/978-3-540-87605-2_21
  • LittleJohn, Allison (2005), From learning objects to learning design, AsciLite Newsletter. HTML
  • Maglajlic S., Maurer H., and Scherbackov N. (1998) "Separating structure and content, authoring Educational web applications" In Proceedings of the ED-MEDIA & ED-TELECOM 98., pages 880-884, 1998.
  • Martel C., Vignollet L., Ferraris C., David J.P., Lejeune A. (2006), Modeling collaborative learning activities on e-learning platforms, ICALT 06, (PDF)
  • Martel Christian, Laurence Vignollet, Christine Ferraris, Guillaume Durand (2006), LDL: a Language to Model Collaborative Learning Activities, ED-MEDIA 2006 PDF Preprint
  • Merrill, M. D. (2001) "The instructional use of learning objects, chapter "Knowledge objects and mental-models" D. Wiley, Ed. AIT Publishers ISBN: 0-7842-0892-1
  • Nodenot Thierry & Laforcade Pierre CPM: a UML Profile to design Cooperative PBL situations at didactical level, Proceedings of the Sixth International Conference on Advanced Learning Technologies (ICALT'06) 0-7695-2632-2/06 PDF
  • Pantano Rokou, F., Rokou, E., & Rokos, Y. (2004). Modeling Web-based Educational Systems: process Design Teaching Model. Educational Technology & Society, 7 (1), 42-50. PDF
  • Paquette, G. (2006). Introduction à la spécification IML-LD d’une perspective d’ingénierie pédagogique. Récupéré le 7 septembre 2007 du site IDLD (Déploiement et implantation de la spécification pour les designs d’apprentissage), http://www.idld.org/Methodology/tabid/174/Default.aspx
  • Pernin, J.-P. et Godinet, H. (2006). Scénariser l’enseignement et l’apprentissage : une nouvelle compétence pour le praticien? Actes du colloque Scénario 2006. INRP
  • Reigeluth, C. M. & Nelson, L. M. (1997). A new paradigm of ISD? In R. C. Branch & B. B. Minor (Eds.), Educational media and technology yearbook (Vol. 22, pp. 24-35). Englewood, CO: Libraries Unlimited.
  • Ritter, S. and Suthers, D. (1997). "Technical Standards for Education" Working Paper, Educational Object Economy site, The EOE Foundation."
  • Robson, R. (2000). "Report on Learning Technology Standards", in J. Bourdeau and R. Heller, Eds., Proceedings of ED-MEDIA'00, the Association for the Advancement of Computing Education, Charlottesville, Virginia.
  • Rodriguez-Artacho, M. (2002) "PALO Language Overview" Technical Report STEED Project (LSI Dept. UNED) February, 2002. HTML
  • Rodr¡guez-Artacho, M. and M.F. Verdejo (2001) "Creating Constructivist Learning Scenarios Using an Educative Modelling Language" in Proceedings of the IEEE Frontiers in Education 2001 Conference, Reno NV Oct 2001. Available on-line at PDF
  • Rodríguez-Artacho, M., & Verdejo Maíllo, M. F. (2004). Modeling Educational Content: The Cognitive Approach of the PALO Language. In Journal of Educational Technology & Society, 7 (3), 124-137. PDF
  • Sampson, D., Karampiperis, P. et Zervas, P. (2005). ASK-LDT: A Web-based learning scenarios authoring environment based on IMS learning design. Advanced Technology for Learning, 2(4), 207-215.
  • Savard, E. (2007). Scénario 2007, le 2e colloque international sur les scénarios pédagogiques. html (Profetic)
  • Teege, Gunnar; Jürgen Koch, Pamela Tröndle, Wolfgang Wörndl, Johann Schlichter (2000). ModuVille: Komponenten für virtuelle WWW-basierte Lehrveranstaltungen, PIK - Praxis der Informationsverarbeitung und Kommunikation, pp. 148-155. (this is a TargeTeam/TeachML publication).
  • Villiot-Leclercq, E., David, J., and Lejeune, A. 2006. Expressing Learning Scenarios with Computer Independent Models. In Proceedings of the Sixth IEEE international Conference on Advanced Learning Technologies (July 05 - 07, 2006). ICALT. IEEE Computer Society, Washington, DC, 520-522.
  • Waters, Sandie, H. & Andrew, S. Gibbons (2004). Design languages, notation systems, and instructional technology: A case study: Educational Technology Research and Development, 52(2), 57-69. PDF (Access restricted)
  • Wilson, S. (2001) "Europe Focuses on EML's" Report from CETIS Research Centre, UK. HTML

Acknowledgement: This article or part of this article has been written during a collaboration with the EducTice group of INRP, which attributed a visiting grant to DKS in january 2009.