Week 2: Health Information Systems, Privacy, Security, and Ethical Considerations Flashcards
What are the 3 key systems?
- networks
- internet
- web services and interfaces
What are networks?
- computers must network or connect with each other to transmit data from one computer to another
- many different types of network connections are possible, with the potential for an unlimited number of computers linked together
- most medical data are segregated into small networks that are not shared widely
What are the 4 main types of networks?
- personal area networks (PANs)
- local area networks (LANs)
- wide or global area networks (WANs, GANs)
- virtual private networks (VPNs)
What are personal area networks (PANs)?
- close proximity networks usually to connect accessories
- low power requirements
- fast connectivity
- security issues with wireless networks
What are some examples of personal area networks (PANs)?
- computer accessories (keyboards)
- wireless headsets
- printers
- phones
- wrist-band fitness devices
What are some examples of wireless personal area networks (PANs)?
- bluetooth
- infrared devices
What are local area networks (LANs)?
- typically seen in offices or hospitals to share data, accessories, and other resources
- larger networks require hubs or routers to process and send data to the correct devices
- can be expensive to create large LANs but useful for small projects
What are some examples of local area networks (LANs)?
- pharmacy with 6 computers, 3 printers, 2 scanners, and 1 fax machine can be on one LAN
- internet cafe with 10 computers connected together
What are wireless (WiFi) networks (WLANs)?
- slower and more expensive than LAN, but easier to install
- does not require any hubs (can just connect), but needs a router
- can be one part of a larger LAN, or can connect multiple LANs together
What are some examples of wireless (WiFi) networks (WLANs)?
- hospital with 50 computers connected to a LAN, with 20 tablets/phones connected via WLAN
What are wide area networks (WANs)?
networks that extend beyond cities or countries
- connects multiple LANs together
What are some examples of wide area networks (WANs)?
- Health Authority network connecting all of the records across multiple hospitals
What are global area networks (GANs)?
networks connected with other networks with ‘unlimited’ geographic area
- bigger than WANs
What are some examples of global area networks (GANs)?
- internet
What are virtual private networks (VPNs)?
- shares a private LAN or WLAN with other users
- requires multiple levels of authentication
- data is encrypted by sender and decrypted at receiver
What are some examples of virtual private networks (VPNs)?
- accessing patient charts from your work computer via home computer
What is bandwidth?
capacity to transmit packets of data
What is packet loss?
packets of data that do not make it to the destination
- different data standards mean sometimes lost packets are not resent
- ie. live streaming video
What is latency or delay?
delay in receiving a packet, or lag
What is the internet?
largest and most important global network of networks
Why is the internet the preferred network for accessing and transmitting data?
- large scale use and availability
- bandwidth capability
- ability to layer other technologies and standards
What is the Advanced Research Projects Agency Network (ARPANET)?
program to connect universities and research organizations together (1960s)
What is the world wide web?
- operates on top of the internet via web browsers
- browsers are able to connect and translate content on a screen for users to view
What is service-oriented architecture?
aims to configure software systems to maximize efficiency, reduce redundancy, and minimize errors and costs
- requires splitting up activities in the system, then re-integrating them using a shared/standardized way