To prosper, organizations need to provide products and/or services that are valued by their clients – they must offer a value proposition that prospective customer prefer above all alternatives (see model 38, the Value Proposition Dial).
To deliver such a value proposition, organizations need to perform a wide variety of value-adding activities – they must orchestrate a large number of tasks that jointly cost less than the value proposition is worth. Porter (1985) initially called this whole set of tasks the value chain, but later switched to the term activity system, as the activities aren’t necessarily sequential.
The Activity System Dial provides a map of all potential value-adding activities performed in an organization, structured into three main categories. All activities directly influencing the value perception of the customer, are primary activities. All activities providing resources for running the primary activities (and each other) are support activities and only indirectly impact customers. The remaining activities all seek to steer the primary and support activities in a certain direction, which is why they are called control activities. Over their lifetime, organizations start at the center and then add activities to the outer rings, increasingly further away from the customer’s value experience. The Activity System Dial can be used to plot the existing situation, but also to discuss consistency, balance, and future improvements.
The three rings of the dial are the following: