The "Agile Method" was coined in February 2001 to refer to software development methods designed to respond to change during software projects and stressing "individuals and interactions over processes and tools" and customer collaboration. Koch (president of the training and consulting company, ASK Process, Inc.) provides an introduction to Agile software development that he hopes will allow managers to weigh its costs and benefits. He explains the philosophical components of Agile development and explains the implementation of six of the most widely recognized methodologies.