1. Determine if you are required to file a tax return. You are required to file a federal income tax return if you are a citizen or resident of the United States or a resident of Puerto Rico. Your marital status, age, filing method, and income all affect whether or not you are required to file taxes.
proficiency testing. proficiency testing. a program in which specimens of quality control material are periodically sent to members of a group of laboratories for analysis, with each laboratory's results compared with those of its peers. See also: proficiency samples.
According to Webopedia, Software Quality Assurance, abbreviated as SQA, and also called software assurance, is a level of confidence that software is free from vulnerabilities, either intentionally designed into the software or inserted at any time during its lifecycle, and that the software functions in the intended manner..