The Pathways Clearinghouse created a list of potential services and uses that list across the website and products. Some services are nested within other services. For example, occupational or sectoral training is nested within training, because it represents a type of training. The higher-level category of training includes other types of training, in addition to occupational or sectoral training. If you are interested in understanding the range of interventions that feature training, your search will identify interventions that include occupational and sectoral training, as well as other types of training. All potential services on the website can be the primary service.