Differences workers and staff

Worker is a worker either daily or monthly, such as daily casual workers and Partime
Characteristics:
Usually not bound by company
Just get a basic salary
Not getting any benefits
Usually only temporary
Usually needed in times when certain (Partime)

Staff is an employee permanent or permanent
Cirri-characteristics:
Usually a fixed or permanent employees who are bound by company
In addition to basic salaries of staff are normally given service
Staff usually receive benefits in the form of health insurance or