Prof. Ko recent research focuses on service-oriented software development in large-scale and distributed system environments such as the web, edge clouds, and Internet of Things (IoT) environments. The main part of his work includes the modeling and design of a personalized service provision framework under complex system environments where user tasks must be supported by the provision of services that utilize various computing resources, including mobile devices, IoT devices, and web resources. His research goal is to create new value for users by linking and integrating these diverse resources within an application. [Web Engineering & Service Computing Lab.]He is the principal architect of SIM-TBASSCO's schemes for semantic representation, semantic gauges and component linking. He has played a key role at the project in developing a metadata framework for describing software components and a reasoning mechanism to measure semantic interoperability and compatibility between software components. As part of his Ph.D. dissertation as well as the project work, he designed and developed a component-based application scripting mechanism that allows users build high-level information management applications by describing the execution behavior and data-flow among distributed software components.