Business infrastructure refers to the hardware, network, and software used to deliver services to employees, partners, and customers of an e-business. It includes computers, cables, routers, application software, support services, and human capital. The infrastructure allows for access through the internet, intranets accessible within an organization, and extranets accessible to some outside the company. A good infrastructure is vital for an e-business's success because it affects the quality and speed of services experienced by users.