There are several types of product classifications. Products can be classified based on how frequently they are purchased, such as convenience goods which are bought routinely, shopping goods which require more consideration, and unsought goods which people feel forced to buy. Products are also classified based on whether they are consumer goods or services. Consumer goods are further broken down into convenience goods, shopping goods, specialty goods, and unsought goods. Manufacturers must choose appropriate distribution strategies and channels based on the type of product.