This view of development as an emergent property of a system fits with the common-sense definition of development described earlier. Development is more than improvements in people’s well-being: it also describes the capacity of the system to provide the circumstances for that continued well-being. Development is a characteristic of the system; sustained improvements in individual well-being are a yardstick by which it is judged.
Software development is not all about web and app. Our interactions on internet over mobile phones have gone really high in the last few years. It is trending. It is just few web developers piggyback on the success of apps-era, but most software experts care little about this intense and widely shared enthusiasm on web apps and sites.