A service segment of the Other Workforce Solutions Industry, Testing is the practice of administering written, oral, or other tests as a means of determining the suitability or desirability of a job applicant or for evaluating the suitability of an existing employee. These may include the evaluation of hard skills such as performance assessments and job knowledge tests but also soft skills by way of personality examinations using various psychometric techniques. Pre-employment screening undertaken before someone is offered a job or temporary position may also include background checks and drug testing which are commonly conducted for hiring in safety critical roles such as heavy machinery or driving and government agencies although there is a growing trend for tests to be administered in a wider range of industries.