At the simplest level, integration is the process of combining two or more things to create a whole. For businesses, the term integration often refers to software or system integration, which means bringing together multiple business systems to operate as a collaborative unit.
Integration allows information to be shared between the connected systems. These integration solutions can come in many forms, whether it be requesting information from a website, internal employee systems sending and receiving information, or connecting customer data from a point of sale system to CRM to automate recommendations.