Which term best describes the collection of technological systems made by engineers, technologists, and scientists that meets people's needs and improves their quality of life?

The designed world.

Explanation:

The designed world is a term that best describes the collection of technological systems made by engineers, technologists, and scientists that meets people's needs and improves their quality of life.

Basically, a designed world gives an insight into a systematic collection of a design process which transforms technological systems, machines, tools,  people, energy, time, and information to better change the world so as to improve and suit the needs or wants of the people.

For example, the city of Philadelphia, Lincoln, San Francisco in the United States of America is a good description of the designed world.

create an interactive presentation of ms powerpoint or any other presentation software in which define the product's characteristics, benefits, why people consider it, etc.