1. MOCAH Tools for IMS-QTI 2.1
Odette Auzende, Hélène Giroire, Françoise Le Calvez
MOCAH team (LIP6)
University Pierre et Marie Curie - Paris

2. MOCAH objectives
To help teachers to create math exercise templates and tests for secondary schools
To express exercise templates and tests in the most interoperable format: IMS-QTI 2.1
To play exercise templates and tests on most Web servers without use of web- service

3. The QTI Editor
Allows teachers to create easily math exercise templates with three types of interactions: textEntryInteraction, choiceInteraction, inlineChoiceInteraction
Includes an editor for math formulae and a QTI Constraint Editor for declaration of constraints between parameters
Generates an IMS-QTI 2.1 file

4. The QTI Editor Parameters Variables (x,y,z…) Lists Summary of the
exercise template
Statement: textEntryInteraction or
choiceInteraction or inlineChoiceInteraction
Next step: declaration of constraints and
Feadbacks with QTI Constraint Editor
Responses

5. The QTI Constraint Editor
declaration of parameters
declaration of constraints
declaration of lists

6. The QTI Web Pages Generator
Takes as input an IMS-QTI 2.1 file corresponding to textEntryInteraction or choiceInteraction or inlineChoiceInteraction
Generates a pair of PHP files and a pair of JSP files: the first file of each pair presents the exercise, the second file ensures the feedback
Limits of the QTI Web Pages Generator
Does not accept mixed interactions
Does not accept adaptive items

7. The QTI Web Pages Generator
IMS-QTI file
Initialisations in JSP
Initialisations in PHP
JSP file for the feedback
JSP file of the question
PHP file for the feedback
PHP file of the question

8. The QTI Web Pages Generator
Two executions on the Web of the same template:
17/04/2017

9. QTI Metadata Editor With this editor, teachers express:
usual LOM metadata (title, author…)
educational metadata
IMS-QTI metadata (itemTemplate, interactionType, feedbackType, solutionAvailable...)
the maximal score of an exercise (to express conditions in an assessmentTest)

10. Indexing exercise templates
A system of classification is created by adding to the taxonomy of the domain a graph of competencies and sub-competencies associated with levels of difficulty
This complete system is implemented via a database
Teachers use a Web interface to reference the exercise templates in the database, using the metadata associated with the templates

11. The QTI Test Editor For creating IMS-QTI 2.1 tests by:
defining parts, sections, subsections
selecting the exercise templates in the database
defining in a section a weighting of the exercise scores
defining preconditions and branchrules
defining feedbacks
Generates the IMS-QTI 2.1 file of the assessmentTest

12. The QTI Test Editor Structure of the test
Selection of items from the database

13. The Test Generator Takes as input an IMS-QTI 2.1 file of a test
Generates a PHP file corresponding to the IMS-QTI test, according to the preconditions and branchrules
On the Web server, the PHP file guides the learner in regard to his/her results

14. QTI Web Pages Generator
Overview of the tools
QTI Editor +
QTI Constraint Editor
IMS-QTI 2.1
assessmentItem
(exercise template)
QTI Test
Editor
teacher
teacher
IMS-QTI 2.1
assessmentTest
QTI Web Pages Generator
Data Base
JSP and PHP files (question and feedback)
QTI Test Generator
PHP file of the test
QTI Metadata Editor
teacher
Web Server
Web interface for recording templates in DB