Third-party technique, marketing strategy commonly employed by public relations firms, that involves placing a premeditated message in the "mouth of the media"
Third-party verification (TPV), process of getting an independent party to confirm that the customer is actually requesting a change or ordering a new service or product, such as the practice used to prevent Telephone slamming
Third-party developer, a hardware or software developer independent of the primary product or platform that the consumer is using
Third-party software component, software which can be used in conjunction with some software or hardware but is not associated with either the manufacturer or the user
Law and society
Third-party observations under the European Patent Convention, observations submitted by a person who is not formally party to the grant or opposition proceedings, where the observations relate to the patentability of an invention subject of a European patent application or, after grant, subject of a European patent
Third-party reproduction, a process wherein a donor provides sperm, eggs, or the use of her uterus so that a woman can have a child
Third-party source, a source of information independent of the first and second parties in a situation