||Trauma resuscitation, the initial management of a critically injured patient, still mostly relies on paper-based documentation. The aim of the current thesis is to design computerized tools fitted to the needs of the trauma resuscitation setting. Previous research has found that computerized support in the form of shared wall displays could make the trauma resuscitation work practice less error-prone and more efficient. However, the question as to how the data required by such screens could be collected has been rather neglected. As such, the focus of the current work lies on the development of design hypotheses of a mobile data entry system for real-time data entry and corresponding shared wall displays supporting team cognition in the trauma resuscitation setting. Those design hypotheses have been developed by means of a case study conducted at the Uppsala University Hospital, Sweden. To the extent of our knowledge, this is the first attempt to design a fully digital data entry system to support real-time documentation of trauma resuscitations as well as the first work to present a synthesis of the existing research on the design of shared wall displays in the trauma resuscitation setting.