Ad hoc is a Latin phrase meaning "for this". It generally signifies a solution designed for a specific problem or task, non-generalizable, and not intended to be able to be adapted to other purposes. Compare ​A priori​. Common examples are organizations, committees, and commissions created at the national or international level for a specific task. In other fields the term may refer, for example, to a military unit created under special circumstances, a tailor-made suit, a handcrafted ​​network protocol​​, or a purpose-specific ​​equation​​. Ad hoc can also mean makeshift solutions, shifting contexts to create new meanings, inadequate planning, or improvised events.

专门的,非通用的,定制的

权宜之计,临时的,

ad-hoc testing随机测试