Ada Lovelace and Lillian Gilbreth are important in Interaction Design history because they made early contributions to how we interact with technology and systems. Also, their outstanding contribution demonstrates the importance of women in the development of this industry.

Lillian Gilbreth, is known for her great work in engineering and also raised I think that is the most important concepts that interaction design follows today were introduced more than a hundred years ago, people factors are the keys.

Ada Lovelace, in the 1800s, wrote the first algorithm for a machine, making her the first “computer programmer”, and she envisioned computers doing more than just calculations. It is amazing that Ada Lovelace could think of things that now it looks like something very futuristic for the time. Interaction design is closely connected with computers and digital devices nowadays, Ada’s groundwork should be credited and honored.