Focal points of internationalization and localization efforts include:

The distinction between internationalization and localization is subtle but important. Internationalization is the adaptation of products for "potential" use virtually everywhere, while localization is the addition of special features for use in a "specific" locale. Internationalization is done once per product, while localization is done once for each combination of product and locale. The processes are complementary, and must be combined to lead to the objective of a system that works globally. Subjects unique to localization include:

Business Process for Internationalization Software
Cost vs benefit tradeoff
Coding Practice
Scope