An introduction and explanation of human factors and sociotechnical issues in medical informatics Solution Healthcare is arguably the most complex of the complex,sociotechnical systems studied by the human factors community .This complexity only looks to increase over the next five years as massive changes in how care is delivered and re-imbursed are already underway.Not the least of these changes is the not-so-subtle introduction of medical informatics and their corresponding ripple effects on how the roles are designed,how work is co-ordinated,how primary and more distant personnel are impacted and how power is allocated within the groups.Much of the activity in medical informatics is conducted without the representation of human factors ,or even without the knowledge of what human factors can contribute other than usable testing methods..