Globalisation: The Challenges to Usability 

English is the official language of approximately eight percent of the worlds population - a significant number, but still a small minority. Yet the majority of online content is presented in English. Naturally, many organisations will want to reach as many prospective worldwide clients and suppliers as possible, but the reality is that a user will always prefer an application that suits their own language and cultural environment. Globalisation refers to everything an organisation should do to ensure that its web presence meets the requirements of users in different countries. Successful globalisation requires tackling a host of both technical and content issues. Back-end systems that interact with your web presence must be reengineered so they can identify and process any language. The web interface and its content must also be translated and culturally modified for a specific language or target environment (a locale). Its a huge topic - here we highlight only some of the key challenges presented to usability by going global.

Gaine, Frank. Frontend Infocentre (2001). Design>Web Design>International>Usability