Finding defects late is a common issue when teams don't consider levels of precision or detail. You must take into account how stories and features fit into the system. In this FAQ column, Janet Gregory tells you how you should remember the big picture—even while testing the small stuff.

DevOps is represented by a set of principles and practices that help improve communication and collaboration between development and operations. Bob Aiello and Leslie Sachs have put together a great introduction showing how quality assurance needs to commence at the very start of a DevOps project.

To fully detect, isolate, and resolve quality issues in a traditional, large-scale data warehouse requires that several approaches be used together. Wayne identifies types of data quality issues and then illustrates how to best attack and resolve those pesky issues.

What happens when defects go unnoticed until it is too late? Mayank provides an insightful view of the true cost of not providing enough test coverage during a software development lifecycle. He also suggests some techniques to ensure that defects are identified and mitigated early.