As I understood or at least in the context that I related to, this is a field that is multidisciplinary and seeks to link economics, motivational theory, educational learning as well as transformative learning to both tackle existing problems as well as create solutions for anticipated problems in systems and societies.
To be successful in a design endeavor, we ought to strive to be rational, empathetic, intellectual as well as have a solid design. we need to put ourselves in the shoes of the end user, while at the same time try to look at design in a more removed way where we can be critical.
As a designer, it is also very important to take into consideration the actual needs of the end user. I remember a discussion in a human factors class where we were talking about the TV remote control which became extremely complex with more buttons than were needed by mere choice of designers, without actually considering what the end user wanted. The result was that end users were overwhelmed with the numerous buttons. Some users were happy to see the many buttons but it did not work out for a lot of people.
Aside from speaking with the potential end user, a multidisciplinary approach where experts in other fields are included is a most favorable approach. There may be small technicalities that are overlooked in design such as longevity, durability and social trends that all need to be incorporated in the new idea/product to make it a success when it is unveiled.
An important aspect that I learned here as well was that there needs to be a period allowed for a product or idea to get accepted . It needs to be accepted that there may not always be immediate acceptance of an idea from people that are afraid, or perhaps unwilling to adapt to the new way of doing things.
Human resource development *****