Zoran Jeremi ć 1 , Jelena Jova nović 1 , Dragan Gašević 2 1 University of Belgrade, Serbia 2 Athabasca University, Canada

Introduction Research Focus software engineering education teaching & learning software Design Patterns (DPs) DPs are successful solutions to recurring problems in software design October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Research Focus

software engineering education

teaching & learning software Design Patterns (DPs)

DPs are successful solutions to recurring problems in software design

Introduction The requirements: Learning at the pace and in a place that best fits Experiencing patterns-based software development applying the theory in the context of real-world problems Experiencing collaborative software development forums, chat, and tools for software artifacts exchange Right-in-time access to the relevant online resources online repositories of software patterns and communities of practice Feedback provisioning October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

The requirements:

Learning at the pace and in a place that best fits

Experiencing patterns-based software development

applying the theory in the context of real-world problems

Experiencing collaborative software development

forums, chat, and tools for software artifacts exchange

Right-in-time access to the relevant online resources

online repositories of software patterns and

communities of practice

Feedback provisioning

Introduction The Goal Improve the process of teaching/learning DPs thorough provision of context-aware learning services The Approach A comprehensive, semantic-rich framework for collaborative learning of software DPs October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

The Goal

Improve the process of teaching/learning DPs thorough provision of context-aware learning services

The Approach

A comprehensive, semantic-rich framework for collaborative learning of software DPs

Outline Current state in teaching/learning DPs Proposed approach DEsign Patterns Teaching Help System (DEPTHS) Semantic foundation of DEPTHS DEPTHS architecture and implementation Conclusions October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Current state in teaching/learning DPs

Proposed approach

DEsign Patterns Teaching Help System (DEPTHS)

Semantic foundation of DEPTHS

DEPTHS architecture and implementation

Conclusions

Current state in teaching/learning DPs Individual use of software systems/tools ‘ Fragmented’ approach lack of means for exchanging data about students activities among different system/tools The major drawback: poor support for context-aware learning services inter-tool personalized learning October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Individual use of software systems/tools

‘ Fragmented’ approach

lack of means for exchanging data about students activities among different system/tools

The major drawback:

poor support for

context-aware learning services

inter-tool personalized learning

The Proposed Approach DEsign Patterns Teaching Help System – DEPTHS a comprehensive learning framework that supports collaborative learning of software DPs integrates diverse systems, tools and services that students interact with LOCO ontological framework as a base for integration October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

DEsign Patterns Teaching Help System – DEPTHS

a comprehensive learning framework that supports collaborative learning of software DPs

integrates diverse systems, tools and services that students interact with

LOCO ontological framework as a base for integration

The Proposed Approach Examples of DEPTHS functionalities: context-aware retrieval & recommendations of: DP resources from online repositories learning artifacts produced and shared by peers software projects, discussion threads, chats, … other students, experts and/or teachers to offer help in the given situation

Examples of DEPTHS functionalities:

context-aware retrieval & recommendations of:

DP resources from online repositories

learning artifacts produced and shared by peers

software projects, discussion threads, chats, …

other students, experts and/or teachers

to offer help in the given situation

Semantic foundation of DEPTHS Learning Object Context Ontology (LOCO) ontological framework In DEPTHS, LOCO is leveraged for: capturing, representation and integration of learning context data from all systems, tools, services semantic annotation and interlinking of digital resources an ontology of DPs, developed by (Henninger, 2007), reused as the domain ontology October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Learning Object Context Ontology (LOCO) ontological framework

In DEPTHS, LOCO is leveraged for:

capturing, representation and integration of learning context data from all systems, tools, services

semantic annotation and interlinking of digital resources

an ontology of DPs, developed by (Henninger, 2007), reused as the domain ontology

DEPTHS architecture October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Implementation of DEPTHS Learning Management System – Moodle The rational: popular, free, open-source LMS, based on the social constructivist theory Moodle interaction data –> LOC mapping D2RQ Sesame Java API Educational services context-aware recommendation of resources October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Learning Management System – Moodle

The rational:

popular, free, open-source LMS,

based on the social constructivist theory

Moodle interaction data –> LOC mapping

D2RQ

Sesame Java API

Educational services

context-aware recommendation of resources

Implementation of DEPTHS Domain modeling tool – ArgoUML open-source software modeling tool uses open software standards allows for exchange of software artifacts ArgoUML interaction data –> LOC mapping Collaborative work support Educational services E.g. suggesting solutions to similar problems October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Domain modeling tool – ArgoUML

open-source software modeling tool

uses open software standards

allows for exchange of software artifacts

ArgoUML interaction data –> LOC mapping

Collaborative work support

Educational services

E.g. suggesting solutions to similar problems

Implementation of DEPTHS Semantic annotation of learning content using the services of the KIM platform allows for semantic interlinking of diverse kinds of learning artefacts E.g., online resources, students software models, and exchanges messages Feedback provision tools for educators LOCO-Analyst October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Semantic annotation of learning content

using the services of the KIM platform

allows for semantic interlinking of diverse kinds of learning artefacts

E.g., online resources, students software models, and exchanges messages

Feedback provision tools for educators

LOCO-Analyst

Conclusions The suggested approach: Integration of existing, proven learning systems and tools into a context-aware collaborative learning environment by leveraging a flexible ontology-based model of interaction (i.e. learning context) data Benefits: Integration of knowledge about learning activities performed by any student with any tool Context-aware recommendation of resources Relevant content from online repositories Peers help October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

The suggested approach:

Integration of existing, proven learning systems and tools

into a context-aware collaborative learning environment

by leveraging a flexible ontology-based model of interaction (i.e. learning context) data

Benefits:

Integration of knowledge about learning activities performed by any student with any tool

Context-aware recommendation of resources

Relevant content from online repositories

Peers help

Conclusions Future work: Further development and testing of DEPTHS User evaluation studies October 18, 2009 EC-TEL2008, Maastricht, The Netherlands

Future work:

Further development and testing of DEPTHS

User evaluation studies

Zoran Jeremi ć 1 , Jelena Jova nović 1 , Dragan Gašević 2 1 University of Belgrade, Serbia 2 Athabasca University, Canada