“…• The experience desired by the user must be instantaneous, available after closing the application if it is not saved, locally saved data retrieved from the Internet and integrated into common applications, such as messaging, email and social media. (Hudli et al, 2015) (Palmieri et al, 2012), tool restrictions (Sommer & Krusche, 2013), dependencies (Sommer & Krusche, 2013), testing (Umuhoza & Brambilla, 2016) (Sommer & Krusche, 2013), debugging (Que et al, 2016) (Botella et al, 2016) (Dhillon & Mahmoud, 2015) (Sommer & Krusche, 2013) (Ohrt & Turau, 2012), simulator (Latif et al, 2016), emulator (Hudli et al, 2015) (Ohrt & Turau, 2012), test framework (Hudli et al, 2015) D2 User interface design (Aurelius, 2020) (Rieger & Majchrzak, 2019), GUI design(er) (Heitkötter et al, 2013) (Ohrt & Turau, 2012), graphical tool for GUI (Mohamed & Abdelmounaïm, 2017), UI design assistant (Botella et al, 2016), no-code/ low-code support (Hudli et al, 2015), customizability (Sommer & Krusche, 2013) D3 Continuous delivery (Aurelius, 2020) (Rieger & Majchrzak, 2019), Building time (Ebone et al, 2018), build service availability (Dhillon & Mahmoud, 2015), build support (Hudli et al, 2015), simplified/automatic builds (Sommer & Krusche, 2013), compile without SDK (Ohrt & Turau, 2012), instant update (Charkaoui et al, 2014), upgrade (Que et al, 2016), updates (Hudli et al, 2015) D4 Pace of development (Aurelius, 2020), ...…”