Because every individual has different needs, assistance is often needed beyond the general guidelines for optimizing the workstation arrangement and work practices.  A good setup for one person or one task (such as working on a computer) is often a bad setup for another person or another task (such as writing or making telephone calls).  We must consider a variety of elements in assessing the needs of any worker, including the job, the environment, and the individual’s characteristics.  A qualified ergonomist will take into account the specific tasks and physical needs of each individual in determining his or her optimal work and equipment configuration.