Information providing method and system

摘要

Information (e.g., performance and optimal conditions) concerned with an exposure apparatus under conditions (e.g., use conditions and target performance) associated with use of the apparatus is quickly provided to a customer. Customer conditions (210) associated with the user of the exposure apparatus (250) are received from the customer (200) via the Internet (400). Performance simulation software (120) and optimization software (130) obtain the performance and optimal conditions concerning the exposure apparatus (250) under the received customer conditions (210) by using secret apparatus data (110) managed by a service provider. The performance and optimal conditions thus obtained are transmitted to the customer (200) via the Internet (400).