As part of our evaluation of Jjodel’s impact on teaching Model-Driven Engineering (MDE), a survey was conducted among students during the current academic year. The responses provided valuable feedback on Jjodel’s usability, functionality, and its role in enhancing the learning experience.

The students initially used version 1.0 of Jjodel, which faced several challenges. At the time, the platform lacked comprehensive documentation, and the release was hindered by significant bugs, including a class of unrecoverable errors that affected the overall user experience. Since then, Jjodel has undergone numerous updates to address these issues and improve its functionality.

The documentation has been significantly enhanced, now featuring a robust Getting Started section, an in-depth User Guide, and a comprehensive Glossary. Additionally, comparisons with other platforms have been added to provide context and assist users in leveraging Jjodel effectively. All these resources are consolidated in the Learn Jj section for easy access.

The current version of Jjodel available online is v1.5, reflecting substantial improvements and user-centric refinements based on feedback and iterative development.

Survey Highlights

1. Demographics:

The survey included responses from 23 participants, with a majority identifying as male (73.9%), followed by female participants (21.7%), and a smaller percentage who chose other categories or preferred not to say.

2. Ease of Use:

Most students found Jjodel easy to use, with 78.2% rating their satisfaction at least 5 (on a scale of 1 to 7). Students also appreciated the simplicity of the platform, as 73.9% rated it at 5 or higher.

3. Learning Curve:

Jjodel was regarded as intuitive and easy to learn, with 91.3% giving at least 5 for ease of learning. This suggests that the platform is accessible even to students with minimal prior experience.

4. Task Efficiency:

A combined 60.8% of students indicated they were able to complete tasks quickly using Jjodel (score 4 and 5 in a scale from 1 to 5), reflecting the platform’s efficiency in practical applications.

5. Comfort and Interface:

Most students felt comfortable using Jjodel, with 77% giving scores of 5 or higher. The platform’s interface was considered pleasant and well-organized, with many respondents highlighting the clarity of information on-screen.

6. Support and Error Recovery:

There was mixed feedback regarding error messages and documentation clarity. While some students found these areas adequate, others highlighted room for improvement.