IBM e-business Technology, Solution, and Design Overview

3.3. Performance and availability management

Performance and availability are two key areas that determine the success of an e-business solution. While performance is usually measured by the response time for each client request, availability is measured by the ability to reliably access a service, hardware, or software element, in any given time period. To build an e-business solution that has an acceptable performance level and high availability is a challenge in itself. Each e-business solution has its own unique performance and availability requirements. For instance, an online application that enables trading stocks typically has a 99.9 percent availability requirement during trading hours. Gathering and determining the performance and ...