Clinical Document Architecture (CDA)

CDA is documentary system formed to use certain standards of documents delivery and exchange texts between different e-health departments. Among most of data transfer and delivery protocols CDA is one of the most popular because its comprehensive nature including wide range of accessibility and readability figures. It formed mainly from XML-mark up based standards for exchange of different kind clinical information. The nature of medical work has different forms of texts and informed data moreover, in most situations, there are clinical or specific information related to group of patients. Delivery process and transferred files were a burden at beginning of health technologies era due to the difference in delivery protocols among stakeholders and their work systems with authorized receivers. After trials to get the optimum documentary standards and then CDA solve the problem and polarized the whole procedure to get linear pathways toward aimed target of maximize the benefits of documentary transfers.

CDA documentary system is formed from three main layers to reach optimum texts readability and processing; first layer is considered the header architecture which derived from RIM in order to build up rest of the documentary operating layers. The second layer of CDA architecture is the body of the formatted texts that play the core database of e-health texts and associated informed documents which would be delivered daily between different working platforms of other stakeholders. The body layer enables data transferring without further processing or additional transformation. The significance of body importance lies in being architecture of data bank and final processed formed delivered information which serve and play the awaited role of delivery, storage and then retrieval of documentary texts on demands. Some questions rose up to ask what is difference than other former explained protocols of medical data delivery?!.

Actually there is no difference of the work purposes and final targets but the only meaning difference in the procedure of data architecture and delivery among other e-health platforms. Where there is not opportunity for other systems to serve and process documentary texts, CDA is the fit one for this mission and do the role of architecture and delivery effectively with no interoperability in-between steps. 

The last layer is observational layer that serves role of structured observational data layers to perform in better way and exaggerate the rightness of operation among receivers and their platforms. Some researchers define the last one as indicator for operational efficiency and performance measurement. Although somehow they seem right in their definition about it but from own viewpoint there is analytical integrated role wrap the functionality of head and body under one data current serve different purposes and goals without interruption to minor operations of each on separate basis. This analytical role work as  indicator to match and figure the operational correctness. Full health J