PETiä

PETiä is a fictional platform created to illustrate how a modular, open‑source data‑collection and analytics system could function in citizen science and urban monitoring projects. The term is used for explanatory purposes and does not refer to a real, commercially available product. In concept, PETiä provides a core data model, sensor adapters, a data‑pipeline layer, analytics modules, and user interfaces. It emphasizes interoperability through open data standards and RESTful APIs, enabling devices such as low‑cost environmental sensors, smartphones, or public kiosks to feed data into a common repository. Data processing supports time series, geolocation, and quality checks, with governance rules to manage provenance and privacy.

Historically, PETiä originated in an academic exercise and is described here as a teaching example rather than a deployed system. Its architecture is intended to be adaptable: modular components can be deployed as standalone services or containerized microservices, with options for on‑premises or cloud hosting. Security and user management are described through role‑based access control, audit trails, and configurable data sharing policies.

Common applications for the concept include environmental monitoring, disaster response, urban planning, and educational programs that teach data literacy. Development guidance in the scenario emphasizes open submissions, community governance, and transparent licensing to encourage collaboration and reproducibility. While PETiä does not exist as a real product, it serves as a neutral template for discussing modular data platforms and the challenges of integrating heterogeneous data sources. See also: citizen science, open data.