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The Innovator's Dilemma: When New Technologies Cause Great Firms to Fail by Clayton M. Christensen

When I began my search for an answer to the puzzle of why the best firms can fail, a friend offered some sage advice. "Those who study genetics avoid studying humans," he noted. "Because new generations come along only every thirty years or so, it takes a long time to understand the cause and effect of any changes. Instead, they study fruit flies, because they are conceived, born, mature, and die all within a single day. If you want to understand why something happens in business, study the disk drive industry. Those companies are the closest things to fruit flies that the business world will ever see."

Software Testing With Spring Framework by Srini & Kavitha Penchikala

Testing is an integral part of enterprise software development. It is as important, if not the most important, as any other phase of the Software Development Lifecycle (SDLC). But testing an enterprise application is easier said than done. There are several constraints that make testing effort in a project a major challenge. These constraints usually fall into two categories: framework related constraints and project methodology related constraints.