The document discusses IBM's business-to-business (B2B) customer segments and how they segment their market. IBM targets large enterprises, growing businesses, mid-sized businesses, and public sector enterprises across various industries. They segment their market based on factors such as product/service, industry, company size, business needs, technology used, IT issues, business partners, customer capabilities, and usage situations. Examples are provided of IBM products relevant to different segments, such as Informix for small/medium businesses, datacenter management for financial/large companies, and industrial tracking solutions for manufacturing industries.