Summary

This chapter defined what performance and scalability mean in a WebSphere environment and discussed the costs of implementing availability versus the costs of downtime.

This chapter serves as a primer to the rest of the book, providing you with a construct to measure the financial return on undertaking performance management profiling and optimization efforts. The "Ten Rules to Live By" sidebar serves as a solid foundation for your performance and scalability approach. Throughout the rest of this book, you'll explore each of these ten rules in more detail.