Infrastructure matters. Today’s business environment is increasingly dominated by mobile and cloud-based platforms, and by the skyrocketing volume of new data. And with 70 percent of the average organization's IT budget being spent on operations and maintenance, infrastructure must be simplified, adaptive and responsive. Those are the characteristics of the software defined environment: IBM’s optimized, customized, virtualized IT platform designed to replace systems that assign server, storage and network resources manually. This eBook serves as an essential introduction to SDEs: what they are, and why your organization needs them now more than ever.