The conceptual design of information systems is mandatory in several
application domains. The advent of the Internet of Things (IoT) technologies
pushes conceptual design tools and methodologies to consider the complexity
of IoT data, architectures, and communication networks. In agroecology
applications, the usage of IoT is quite promising, but it raises several
methodological and technical issues. These issues are related to the
complexity and heterogeneity of data (social, economic, environmental, and
agricultural) needed by agroecology practices. Motivated by the lack of a
conceptual model for IoT data, in this work, we present a UML profile taking
into account different kinds of data (e.g., sensors, stream, or
transactional) and non-functional Requirements. We show how the UML profile
integrates with classical UML diagrams to support the design of complex
systems. Moreover, We prove the feasibility of our conceptual framework
through a theoretical quality assessment and its implementation in the
agroecology case study concerning the monitoring of autonomous agricultural
robots.