OSI Model Protocol
Keisha Bullock
NTC 361
December 9, 2013
University of Phoenix (Axia)
Bruce Yamashita

OSI Model Protocol Open System Interconnection (OSI) is a recommended suggestion for how messages should be transferred between any two users in a telecommunication network. The purpose of the OSI is to direct product implementers so that their items will regularly work with other items. The OSI model outlines seven layers of function that happens at each end of a message. The main purpose of the Open System Interconnection is that the communication procedure between two end points in telecommunication networks can be split up into different levels with each level having its own set of responsibilities ("OSI (open System Interconnection)", 2000-2013). The OSI slits the telecommunication into seven levels which is the application level, the presentation level, the session level, the transport level, the network level, the data link level, and the physical level ("OSI (open System Interconnection)", 2000-2013). The layers are broken up into two sets. The higher four levels are used when a message is transmitted from user to another user. The bottom three levels are exercised when any message passes through the main computer. Messages planned for this computer go through to the higher levels and messages intended for some other computer are not distributed up to the levels but are advanced to other host. The application level offers multiple services to the application level. The presentation layer changes the material. The session layer takes care of complications which are not related to communication problems. The transport level delivers one end to another end message control. The network layer directs the data in the system. The data link layer provides mistake control amid adjoining nodes. And the physical layer joins it to the communication of the media. The Open System Interconnection model explains the interacting outline for putting protocols into place. Control is distributed from level to level beginning with the application layer and works its way through all other layers until it gets the physical layer or level one. When this sequence is finished control then goes to the following position on the system and works its way up the ladder. The procedure starts on the top layer and supports the application and also helps the end user with the processes. Operator verification and confidentiality on the system is contemplated at this level. Additionally this is the level where file transfers happen. Once the application is finished control is forwarded to the presentation level or the sixth level. In this layer the data is converting into a form that the application level can receive. Also the encoded data is taken care of at this layer. This is the layer that designs and encodes data to be transmitted across a network. Control is now passed to the session layer which is the fifth level. The session layer transacts with multiple system periods and creates, manage, and end connections between multiple network sessions. This level also sets-up, organize, and end interactions and discussion amongst the applications on any end. The transport layer takes power here. This is the level that delivers transparent transfers of information between the end system and or host, and is also accountable for error recovery and flow control from end to end. The transport level guarantees complete information transmission. Now we move to the network layer. This layer delivers swapping and routing technologies and produces computer generated circuits. These computer generated circuits are used for transferring information from the node to another node. Steering and advancing are the purpose of this level as well as speaking, internetworking, mistake handling, jamming control and container sequencing. Now we are at the data link level where data is programmed and interpreted into bits. It supplies communication procedure information and management, and takes care of mistakes in the physical level, flow control and frame organization. This level is split into a couple of sub levels the (MAC) or Media Access Control and the (LLC) Logical Link Control level ("OSI (open System Interconnection)", 2000-2013). The Media Access Control sub level governs how the system gets admission to the information and approval for the transmission of the information. The Logical Link Control level regulates frame organization, movement control, and the examination of mistakes. Now we have reached the first level which is the physical level which transport the bit flow over the system at the electronic and powered layer. It delivers the hardware a measure of distributing and getting information plus essential cables, video/sound card, and other physical facets. ("OSI (Open System Interconnection)", 2000-2013). These protocols apply to health care organization because of the exchange of clinical data in the delivery of health care. The OSI will speed up the flow of the patient information from the provider’s office to the hospitals and outpatient facilities (Durkin, & Just, 2008). The OSI will also help struggling health care organizations establish an effective and sustainable models for the business as well as put in place privacy and security measures to help them better protect the information of the patients they service. The different types of network designs affect the transfer of medical data because information systems are the mainframe that allows the distribution of information to a group of users in different locations who are accessing the same application ("Role of Information System in an Organization", 1999-2013). Managers are able to control data, view data, and use different tools to get the necessary information recorded and transmitted.

References
Durkin, S., & Just, B. (2008, January). An IT Primer for Health Information Exchange. Journal Of AHIMA, 79(1), 38-42.
OSI (Open System Interconnection). (2000-2013). Retrieved from http://searchnetworking.techtarget.com/definition/OSI
Role of Information System in an Organization. (1999-2013). Retrieved from http://www.ehow.com/about_6525978_role-information-systems-organization.html