1. Agutter, C., England, R., Van Hove, S. D., & Botha, J. (2017). VeriSM™: A service management approach for the digital age. Van Haren Publishing.
Reference Point: In Chapter 2, "The Service Organization," the text states, "In the past, many services were developed and delivered by a single service provider... Today, the picture is much more complex... This makes it difficult to get a clear picture of what is happening from end to end." (p. 21). This directly supports the challenge of complexity leading to reduced visibility.
2. EXIN. (2021). Preparation Guide EXIN VeriSM™ Foundation.
Reference Point: Section 2.2, "The organization," discusses the impact of digital transformation, highlighting how services are now "created using capabilities from many different suppliers," which introduces complexity and challenges in managing the end-to-end service.