Exemplary Use Cases Based on the Generic Data Model for the Integrated Intelligent Computer-Assisted Language Learning (iiCALL) Environment

1. Exemplary Use Cases Based on the
Generic Data Model for the
Integrated Intelligent Computer-Assisted
Language Learning (iiCALL) Environment
Harald Wahl - UAS Technikum Wien
Werner Winiwarter - University of Vienna
iiWAS 2014
16th International Conference on Information Integration and Web-based Applications & Services
December 4-6, Hanoi, Vietnam

2. Agenda
 What is iiCALL?
 Requirements Engineering
 Architecture 1.0
 HL7 v3
 iiCALL Generic Data Model 1.0
 Use case Workgroup

3. What is iiCALL?
 Computer-Assisted Language Learning (CALL)
– “the search for and study of applications of the computer in
language teaching and learning” Levy (1997)
 Intelligent CALL (ICALL)
– CALL + NLP + AI
 Our research additionally deals with integrated
environments
– Intelligent Integrated Computer-Assisted Language Learning
(iiCALL)

4. Requirements Engineering
 Functional requirements (UML)
– Use Case Description
– Use Case Specification (Actors, Pre-condition, Post-
condition)
– Sequences
– Activities
– Classes
– …

5. Use Cases

6. Use Cases (selection)

7. Architecture 1.0
Platformsfor integration
Workflow Engine
LR NLP
4
ApacheTomcat
Web
3
iiCALLenvironment
1 2

8. Vocabulary trainer

9. Drawbacks
 Inflexible wrt. to new functionalities
 Change management is difficult
– Change of server database
– Change of client databases
 WSDL spec. per scenario

10. Similar problems in e-health
 Different software developer
 Need of semantic interoperability
 Standard HL7 (currently in version 3)
– Reference Information Model

11. HL7 Reference Information Model
 Just a few core classes
 Provides standards for data exchange to allow
interoperability between healthcare information systems
Act
Relationship
ParticipationRole
Role Link
ActEntity
A physical thing,
group of physical
things or an
organization capable
of participating in
Acts, while in a role.
A record of something
that is being done, has
been done, can be
done, or is intended or
requested to be done.
A competency of the Entity
playing the Role as
identified, defined,
guaranteed, or
acknowledged by the Entity
that Scopes the Role.
An association between an
Act and a Role with an Entity
playing that Role. Each
Entity (in a Role) involved in
an Act in a certain way is
linked to the act by one
Participation-instance.
Entity Role Participation Act
A connection between two
roles expressing a
dependency between those
roles.
A directed association
between a source act and a
target act.
Role Link Act Relationship
0..1
0..n
1
0..n
0..n
1
0..1
0..n
0..n 0..n
1 1
0..n 0..n
1 1

13. Is there a similarity to language learning
 Exemplary Use Cases
– Vocabulary trainer
– Cloze text
– Social translation
– Group work
– Entry-level tests
– Improve medical language skills (nursing staff)
– Train communication phrases (tourists, travelers)
– …

14. Vocabulary trainer
 Involved:
– Learner, Skill level, Language to be learned, Text, Multiple
Choice Test, Result, Learning steps (workflow)

15. Generic data model 1.0
 Entity:
– Learner: Person
– Language: Language
 State:
– Learner’s skill level in specific language (beginner, advanced, …)
 Role:
– Person in the role of learner
– Person in the role of trainer
– Language in the role of language to be learned
 Participation / Activity / activity Relationship:
– Learner and language participate in vocabulary training
– Workflow of Vocabulary training consists of several process steps
 Involved:
– Language Ressources, NLP Tools, …
Activity
Relationship
ParticipationRole
State
ActivityEntity
Connector

16. Generic data model 1.0
iiCALL GDM
Activity
Relationship
ParticipationRole
State
ActivityEntity
Connector

17. Use case “Workgroup”

18. Use case “Workgroup” – class Person
derived from the
generic class „Entity“

19. Use case “Workgroup” – class User
derived from the
generic class „Role“

20. Use case “Workgroup”

21. Use case “Workgroup”
 “Person” is derived from the generic class „Entity“
 “User” is derived from the generic class “Role”
 "Moderator" is derived from the generic class "Role“
 "GroupRights" is derived from the generic class "State“
 "Workgroup" is derived from the generic class "Role“
 "Invitation" is derived from the generic class "Activity"

22. Further steps
 Done is Mapping of Use Cases to iiCALL GDM
– Use Case “Workgroup”
– Use Case “Grading test”
– Use Case “Login”
– Use Case “Chat”
 To Do
– Mapping of additional use cases
– Implementation
– Testing user acceptance

23. Thank you for your attention
Harald Wahl
wahl@technikum-wien.at
http://staff.technikum-wien.at/~wahl