Design for Public Service Platform1. Digital platform of public service Public service based on digital platform is emerging as the most important factor in the competitiveness of a nation and a city. In 2020, Korea ranked 8th in the World Digital Competitiveness Ranking announced by the Institute for Management Development (IMD) in Switzerland, which was a 2-step rise from 10th position in 2019, to show its potential in the digital field. Also, in the government index announced by OECD, Korea is exhibiting strength and performance in digital-based public service by achieving 1st place in digital by design government, 2nd place in government as a platform, 3rd place in data-driven government, 1st place in open by default government, 4th place in user driven government and 12th place in proactiveness of government. Seoul is also making efforts to drive innovation in public service based on excellent digital infrastructure, and moreover, there is a demand to resolve problems in a way that can be felt by our citizens and achieve transformation in terms of creating sustainable and real values.