The following are the five topic of case studies
1.Structural analysis and optimization of bicycle frame designs Lin, Huang & Liu (2017) .
2.A review of six sigma approach: methodology, obstacles and benefits Dhiraj & Deepak (2014)
3.Application of Internet of Things in academic buildings for space use efficiency Azizi et al (2020) [02c]
4.Art in traditional African domestic architecture Opoko, Adeokun & Oluwatayo (2016)
5.The Kinetic Energy Storage as an Energy Buffer for Electric Vehicles Jivkov & Draganov (2017)
For each of these five case studies, first identify the methodology and strategies used, as well as their variants.