Fig. 13 shows the comparison of the ranked usability for all three methods of learning. We compared the mean of each characteristic. The figure shows that Alice 2.0 has a better
usability compared to GAPS 1.0 and Conservative Method.However, there are five characteristics that Alice 2.0 and GAPS 1.0 have similar score. Those characteristics are “easy to learn”, “learn any programming skills”, “improve understanding in programming”, and “fun and attractive for learning”. Therefore, all these characteristics should be in consideration when improving the usability of GAPS 1.0 to attract students in learning using GAPS 1.0