International Conference on Information Systems Development (ISD), 2018
Learning and understanding what happened before, during, and after a crisis is extrem... more Learning and understanding what happened before, during, and after a crisis is extremely important for the improvement of the response process. For this purpose, social media has become an important communication medium used by both the affected persons and the emergency management services (EMSs). However, in different crises, different information may be needed, and the information shared in social media varies in its usefulness: It could be highly critical or completely irrelevant to the rescue operation. Supplying the best possible up-to-date information is crucial to the EMS, whose actions based on that information may save lives and resources. This paper studies a particular use case of extreme weather in Norway and identifies the information needs, the problem faced by EMSs, and how they use social media. It, further, pinpoints what different social media analysis platforms can provide in this type of crisis. The results of the research are criteria that social media analysis should follow to address EMSs' concerns. The output of this work can be used to more precisely describe social media communication for crises and to design more efficient platforms for information retrieval from social media.
A high degree of innovation is becoming a decisive factor for companies aiming at sustainable com... more A high degree of innovation is becoming a decisive factor for companies aiming at sustainable competitive advantages. New methods of innovation have become increasingly important in practice. Using such methods in globally operating teams requires location-and time-independent solutions such as web-based collaboration tools. This paper evaluates the ability to digitalize the service innovation method Service Blueprinting using a self-developed prototype. The prototype is evaluated thoroughly in two different studies. In-depth user tests with Design Thinking experts and laymen prove the suitability for Design Thinking and the interaction with the prototype from a HCI perspective. Additionally, we evaluate the acceptance, perceived usefulness and effectiveness quantitatively in the light of the prototype's collaboration capability. The results indicate the transferability of the required mindset through the digital tool as well as its the acceptance and usefulness. It represents a practical and suitable solution for the digitalizing of Service Blueprinting.
Proceedings of the 51st Hawaii International Conference on System Sciences, Jan 3, 2018
During a crisis, authorities need to effectively disseminate information. We address the problem ... more During a crisis, authorities need to effectively disseminate information. We address the problem of deciding how crisis-related information should be published on Facebook to reach as many people as possible. We examine three recent terrorist attacks in Berlin, London and Stockholm. Our specific focus lies with official Facebook pages by municipalities and emergency service agencies. We collected posts about the events, along with the number of shares, likes and emotional reactions to them. In a regression analysis, several variables were examined that capture decisions on which information to publish and how. Posts containing condolences were found to result in three times as many emotional reactions as other posts, all other variables held constant. Images and videos positively affected the number of reactions by factors of 2.2 and 3.9, respectively, while text length negatively affected the number of shares. These results will help in the development of effective guidelines.
International Conference on Information Systems Development (ISD), 2018
Learning and understanding what happened before, during, and after a crisis is extrem... more Learning and understanding what happened before, during, and after a crisis is extremely important for the improvement of the response process. For this purpose, social media has become an important communication medium used by both the affected persons and the emergency management services (EMSs). However, in different crises, different information may be needed, and the information shared in social media varies in its usefulness: It could be highly critical or completely irrelevant to the rescue operation. Supplying the best possible up-to-date information is crucial to the EMS, whose actions based on that information may save lives and resources. This paper studies a particular use case of extreme weather in Norway and identifies the information needs, the problem faced by EMSs, and how they use social media. It, further, pinpoints what different social media analysis platforms can provide in this type of crisis. The results of the research are criteria that social media analysis should follow to address EMSs' concerns. The output of this work can be used to more precisely describe social media communication for crises and to design more efficient platforms for information retrieval from social media.
A high degree of innovation is becoming a decisive factor for companies aiming at sustainable com... more A high degree of innovation is becoming a decisive factor for companies aiming at sustainable competitive advantages. New methods of innovation have become increasingly important in practice. Using such methods in globally operating teams requires location-and time-independent solutions such as web-based collaboration tools. This paper evaluates the ability to digitalize the service innovation method Service Blueprinting using a self-developed prototype. The prototype is evaluated thoroughly in two different studies. In-depth user tests with Design Thinking experts and laymen prove the suitability for Design Thinking and the interaction with the prototype from a HCI perspective. Additionally, we evaluate the acceptance, perceived usefulness and effectiveness quantitatively in the light of the prototype's collaboration capability. The results indicate the transferability of the required mindset through the digital tool as well as its the acceptance and usefulness. It represents a practical and suitable solution for the digitalizing of Service Blueprinting.
Proceedings of the 51st Hawaii International Conference on System Sciences, Jan 3, 2018
During a crisis, authorities need to effectively disseminate information. We address the problem ... more During a crisis, authorities need to effectively disseminate information. We address the problem of deciding how crisis-related information should be published on Facebook to reach as many people as possible. We examine three recent terrorist attacks in Berlin, London and Stockholm. Our specific focus lies with official Facebook pages by municipalities and emergency service agencies. We collected posts about the events, along with the number of shares, likes and emotional reactions to them. In a regression analysis, several variables were examined that capture decisions on which information to publish and how. Posts containing condolences were found to result in three times as many emotional reactions as other posts, all other variables held constant. Images and videos positively affected the number of reactions by factors of 2.2 and 3.9, respectively, while text length negatively affected the number of shares. These results will help in the development of effective guidelines.
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Papers by Tobias Kroll