Book excerpt: Dependable information flow is a necessary prerequisite to the successful implementation of lean production principles. But while most managers understand how to make materials and manpower flow, the flow of information tends to be much more underdeveloped. Even companies that excel at recognizing waste and are otherwise adept at implementing the principles of lean production are often challenged to provide satisfactory information flow. Lean Connections: Making Information Flow Efficiently and Effectively isdesigned to help you rethink the way your organization views information flow. It provides the building blocks of a comprehensive information-flow system, showing you calculations and methods that will allow you to get the necessary information to those individuals who need it, when they need it. Following a logical and detailed progression, this manual shows how to make information flow in lean production facility— From the end customer through materials control to the production floor On the production floor at the operator, team, and value stream level And then from the production floor to the management of the facility Employing a workbook format, this manual follows RNA Manufacturing, a fictional company, through its implementation of a comprehensive lean production system. As the authors outline RNA’s methods and thought processes, they employ exercises that ask questions about your own production system. Your challenge is to think deeply about the answers, as well as the changes that need to be made to effectively make information flow through your facility. Make certain that everyone gets the information that they need when they need it