What does a programmer do? What is a program?

Programmers are professionals engaged in program development and program maintenance.

Programmers generally need to be able to: Confirm project requirements by reviewing program goals, input data, analysts, supervisors, and client output requirements. Arrange project requirements in programming sequence analysis requirements; prepare workflow diagrams and use computer knowledge, subject matter, programming languages ??and logic diagrams, etc.

Programmers are usually divided into program designers and program coders, but the boundaries between the two are not very clear, especially in China.