In next few years, people's lives will be changed by big data, cloud computing and AI, as the petabyte will be produced by people, said Harry Shum, executive vice-president of Microsoft.

AI's design and development should be human-centered because AI will extend human capacities, he said.

A computer is without the concepts of good or evil that exist in people's hearts, Shum said. "We need to ensure AI's designers, including software engineers and algorithmic scientists, master the right tools, and have the right awareness to develop an AI system," he said.