How to ditch waterfall for DevOps on the mainframe

People in business talk a lot about transformation. But most companies have only a vague understanding of what a successful transformation is, let alone how to accomplish one before nimble, digital disruptors swoop in to steal customers. Defining what to do and how to do it is especially hard for companies that rely heavily on the mainframe—a historically siloed platform encumbered by slow process and outdated, esoteric tools.