Collaborative work is a type of work that involves two or more people working together to achieve a common goal. The term 'DUET' is often used to describe this type of work, as it implies two people working in harmony to create something. Duets are often seen in music, where two people sing or play instruments together to create a beautiful piece of music. Collaborative work can also be seen in other areas such as business, where two or more people work together to create a product or service.