ABSTRACT
This chapter considers spatial data supply chain challenges from the perspective of producers and the issues they have in determining what value activities they need to perform to deliver the right knowledge to the end user, at the right time. It also considers uncertainty from the user’s perspective and their need for believability in information for it to be valued as new knowledge. A supply chain that comprises Semantic Web technologies is discussed as a way for the spatial sector to move beyond the business of data to become a knowledge-based industry that has enhanced value for end users. The concept of a query-based pull model is proposed to enable end users to derive knowledge value from data on-the-fly, and ranking and rating is proposed as a way to communicate the reliability of this knowledge for decision-making.
