How complex documentation with Personal Digital Assistants could be?

The researchers have demonstrated that the PDA could be used for complex documentation and well accepted by users. This study examined whether the researchers could make the PDA system still keep great usability when the contents of information were requested to increase from 262 to 513 questions. Two independent convenience samples from the Veterans Medical Care system in Taiwan and the questionnaire designed based on Technology Acceptance Model were used in this study. Results showed that mobile device such as PDA could still be used for complex documentation with 513 assessment questions, designed with a set of effective screen interface design principles. This is encouraging for the mobile health because its success depends on the use of mobile devices.