In the new book “The practitioners guide to POLCA”, written by professor Rajan Suri, a Variass case was included. Variass has contributed to an article about their innovative POLCA configuration (material controlsystem on production). This article was included as a case in the new book of professor Suri. Suri is the founder of QRM and POLCA. The professor also visited Variass earlier to view our implementation himself.