Building Ethereum Decentralized apps or Dapps

This playlist on youtube explains in detail how to build Decetralized apps or Dapps.

Problem
For possible development of applications using the Blockchain as a Service in the future, Businesses lack a substantiated overview of opportunities and an indication of possibilities for business purposes. Of this service is not yet known exactly what the possibilities are for developers.

Goal
It is important to find out in what way (s) business apps could be developed using the Blockchain as a Service so Businesses can maintain its technological lead in this field and serve its customers with this new technology / service.