Controlling the Processing of Smart City Data in the Cloud with Domain-Specific Languages

In this paper a new user interface for the processing of big geospatial data in the Cloud is presented. The paper focuses on the processing of Smart City data since this kind of data is inherently large and becomes more and more important for the maintenance and planning of sustainable future Smart Cities. The user interface is facilitated by Domain-Specific Languages (DSLs) that are tailored to the urban planning domain. In this paper a modelling method for DSLs is described and then applied to an example use case from the research project IQmulus funded by the European Commission. The resulting DSL is specified using a Parsing Expression Grammar (PEG) which is used to automatically generate a language parser. Furthermore, a technique to interpret scripts written in the Domain-Specific Language is presented. This technique makes use of mapping rules that specify how the interpreter has to translate terms in the DSL to processing services in the Cloud.