The electronic health records (EHR) may be

The electronic health records (EHR) may be thought of as a collection of several key components.1 Each of these components contributes to overall system functionality. In older EHRs, these components were often bundled, making it difficult if not impossible to separate components from each other. Components of modern technologies are often developed separately but may follow a common architectural design philosophy so that the components can be integrated 76easily. Each component could also be enhanced independent of the others as long as the component integration design was followed. Often the technical responsibility of the informatician is to manage the component design and implementation life cycle, so understanding the component model and integration strategy is essential (Fig. 5.1). The following sections describe common EHR components and important considerations for each component.The electronic health records (EHR) may be thought of as a collection of several key components.1 Each of these components contributes to overall system functionality. In older EHRs, these components were often bundled, making it difficult if not impossible to separate components from each other. Components of modern technologies are often developed separately but may follow a common architectural design philosophy so that the components can be integrated 76easily. Each component could also be enhanced independent of the others as long as the component integration design was followed. Often the technical responsibility of the informatician is to manage the component design and implementation life cycle, so understanding the component model and integration strategy is essential (Fig. 5.1). The following sections describe common EHR components and important considerations for each component. 1- Describe the role of the informatician in designing and implementing the EHR technical infrastructure as outlined by the component model discussed in the chapter. 2-As opposed to the closed infrastructure of most vendor systems, open source systems may allow multiple groups to contribute to the underlying system code and architecture. Describe the positive and negative aspects of this approach for the healthcare organization. Contrast this with the SMART or SMART on FHIR approach.

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