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The growing use of crowdsourced geographic information (CGI) has prompted the employment of several methods for assessing information quality, which are aimed at addressing concerns on the lack of quality of the information provided by non‐experts. In this work, we propose a taxonomy of methods for assessing the quality of CGI when no reference data are available, which is likely to be the most common situation in practice. Our taxonomy includes 11 quality assessment methods that were identified by means of a systematic literature review. These methods are described in detail, including their main characteristics and limitations. This taxonomy not only provides a systematic and comprehensive account of the existing set of methods for CGI quality assessment, but also enables researchers working on the quality of CGI in various sources (e.g., social media, crowd sensing, collaborative mapping) to learn from each other, thus opening up avenues for future work that combines and extends existing methods into new application areas and domains.

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Business process management (BPM) is an important technological support to improve organisation competitiveness. BPM can benefit from reuse approaches and techniques at several stages of the business process life cycle in order to increase dynamism, flexibility and competitiveness. Existing reuse techniques from areas such as software engineering can be extended to this emerging domain. This paper presents the results of a literature review of reuse in the BPM domain. It aims to provide an overview and an overall discussion of most relevant research projects that have been developed applying reuse in BPM.

Volunteered geographic information (VGI) has been seen as useful information in times of disasters. Several authors have shown that VGI is useful for coping with preparedness and response phases of disaster management. However, because it is still a young technology, the use of VGI remains uncertain, due to its lack of strong reliability and validity. It is our assumption that to improve reliability and validity the promotion of citizen engagement (CE) is needed. CE is not new topic, but in the digital humanitarian context, it involves important factors that are not yet considered by disaster managers, such as communication processes, motivation of volunteers, different media for production of information, etc. To fill this gap, we identified a set of preliminary factors which should be considered to promote the involvement of volunteers in disaster management. These factors were derived from critical review of CE literature and from an analysis of lessons learned from an experiment on interaction with citizens carried out in context of the EU-project "DRIVER -Driving Innovation in Crisis Management for European Resilience".