Figure 1From: Development and usability testing of a Web-based decision aid for families of patients receiving prolonged mechanical ventilation Overview of study. The development of eCODES, a Web-based prolonged mechanical ventilation decision aid, included extension of a data entry and management system to include a study staff-directed electronic decision aid adapted from a printed version. Development also included enhancing eCODES with a mobile functionality, allowing users to view it at their convenience in locations outside a hospital setting. The performance evaluation phase included a formal assessment of usability, acceptability, and feasibility.Back to article page