Diploma Thesis Tobias Kohr

Abbildung eines raumbezogenen Geschäftsprozesses in Geodateninfrastrukturen am Beispiel einer InVeKoS Fachlogik

Abstract

Today an Integrated Administration and Control System (IACS) is an essential component for the transaction of agricultural subsidiary payments within the European Union (EU). Such a system controls the compliance of regulations, prevents multiple applications of redundant cultivation areas and administers the process of payments. The latter account for 42.9 billion euros in 2011 (Europäische Union, 2011). The process of direct payments within the hierarchical structure starts with a business process on the lowest level of the system: The farmer files an application to the paying agency. This process comprises control mechanisms in order to reduce expenditure of work in subsequent data handling. The spatial relation of cultivation areas requires GIS capabilities to be part of these controls. While corresponding examinations are already enforced via digital application procedures nowadays, the distributed access to required data and capabilities often remains a pitfall within the business process. During the last decade, Spatial Data Infrastructures (SDI) have been introduced. Their primary objective is an efficient provision of spatial data residing in decentralized sources. Based on the model of Service Oriented Architectures (SOA), SDI pursue a standardized publication of spatial data via services. This work provides thematic introductions to SDI and the Common Agricultural Policy (CAP) of the EU. Rested on these fundamentals, the work presents different architectural designs that exploit data supply through services. Besides interoperable provision of data, the consequently developed concept aspires an interoperable provision of application logic on the service layer. This enables potential reuse of capabilities and the realization of a pure Web client (thin client). Web Processing Services (WPS) offer capabilities of the discussed use case, which comprise topologic examinations, calculations of attribute values and a process for geometric adjustments. In this context the work describes a possible application profile for the WPS, regards the required process chain and examines potentials of a stateful WPS interface. A prototype implementation proves the technical feasibility of the concept. At the same time the simplified implementation illustrates pitfalls of a WPS of coarse granularity. The conclusion discusses and evaluates results of this work and gives a perspective for future opportunities within an IACS-SDI.