As an important pioneer in engineering, engineering, and management theory, Lillian Gilbreth is a very important example of early interaction by combining human factors, psychology, and scientific management.


Compared to Lillian Gilbreth, Ada Lovelace is more like an important figure who laid the foundation for modern electronic systems and interaction design. Her most important asset is something that appears to be the world’s first computer program. It is a machine-executed algorithm and perhaps the earliest computer algorithm to appear worldwide. She was also the first person to realize that electronic devices have applications beyond pure symbol addition and subtraction calculations. In contrast, others at the same time, including Babbage, may not have realized this.


For interaction design, these people were involved in and designed the earliest interactions, namely human factors and human-computer interaction. Ada enabled people to participate in the “interaction” between humans and computing units in a physical sense for the first time