Abstract. This paper proposes a general architecture and a classification scheme for mobile crowdsourcing systems, which are illustrated by two example applications. The aim is to gain a better understanding of typical functionalities and design aspects to be considered during development and evaluation of such collaborative systems.Keywords: crowdsourcing, crowdsourcing system, mobile crowdsourcing, crowdsourcing application, architecture, classification scheme. IntroductionMany organizations are increasingly using crowdsourcing as a new model for value creation, where new web technologies are used to outsource tasks, which are traditionally performed by a specialist or a small group of experts, to an undefined large group of people [1]. Meanwhile, mobile devices (phones, smartphones, tablets, and in the near future glasses, watches, and so on) have become ubiquitous and a tool for crowdsourcing [2]. In mobile crowdsourcing mobile devices are used for datacollection tasks delegated to a larger number of people as well as for the coordination among the people involved. In the recent years numerous mobile crowdsourcing applications have been realized and have shown the potential for business and society [3]. As the popularity of these applications increases, our understanding of how to design and deploy successful mobile crowdsourcing systems must improve [4]. Many systems described in the scientific literature were individual, task-specific, ad-hoc implementations [5]. Without a profound theoretical foundation, the development of such mobile crowdsourcing applications is still a difficult task and costs as well as the time needed for each development can be high.The objective of this paper is to gain a better understanding of typical functionalities and design aspects to be considered during development and evaluation of such collaborative systems. Thus, the way how mobile crowdsourcing applications are developed will shift from an ad-hoc manner to a planned routine. Based upon an extensive literature review, a categorization of existing applications of mobile crowdsourcing systems, and an overview of typical design aspects of mobile crowdsourcing

In this article we examine the integration of communities of practice supported by a wiki into work processes. Linear structures are often inappropriate for the execution of knowledge-intensive tasks and work processes. The latter are characterized by non-linear sequences and dynamic social interaction. Communities of practice, however, often lack the guiding light needed to structure their work. We discuss the primary requirements for the integration of formally described knowledge-intensive processes into the dynamic social processes of knowledge generation in communities of practice and use the wiki approach for their support. We present our approach for an appropriate interface to integrate wiki communities into process structures and an information retrieval algorithm based on it to connect the process-oriented structures with community-oriented wiki structures. We show the prototypical realization of the concept by a brief example

No abstract

This article deals with the support potential of knowledge communities for a co-operative knowledge generation and problem solving before the background of the increasing economic importance of knowledge-intensive processes. Therefore, requirements for an IT-support of a co-operative knowledge generation and problem solving via knowledge communities are being developed that are of significance in the induction and dissemination of knowledge within communities. Special emphasis is put on the integration of the knowledge of the community into relevant work processes aiming at an initiation of synergies with this combination. According to the above- mentioned requirements, we will present the realisation of a knowledge community with the help of the Wiki-approach. Thereupon, a concept for integrating knowledge communities in process-oriented knowledge structures will be developed by creating an adequate interface. This concept could be realised in a prototype way in an implementation. The developed prototype will be described in a brief case study.