Customerization and customization refers to adapting a product. Both of these terms indicate a product is adapted to meet specific or individual needs of the end user.
Well Tom, customerization is when you take a small white rabbit and a large husky male and you send them off with a sexy panda bear named Bobo, who in retorspect is actually a nice fella... except he has syphillis.
Customization involves a producer making goods that fit what individual customers need. Customization involves being both a consumer and a producer to design a product. An example of customization would be a computer that is customized to your specifications. An example of customization is a boutique that allows customers to be hands-on in designing their own clothing.