Can find information in a variety of formats, ranging to simple and easier to read, to complex and technical.
Gives an almost unlimited number of cases for symptoms, (each condition is almost guaranteed to be found using Google.
Using google, you can directly enter in more specific symptoms to find the diagnosis as quickly as possible.
Disadvantages
Can potentially provide unreliable information, such as from Wikipedia.
Information or advice can vary greatly, potentially causing confusion.
There can be too much too see on google, overwhelmed from information.
Doesn't give results specific to you, so if an old person is feeling dizzy the procedures could be different to a baby.
Can give completely unnecessary information, such as the what dizziness is, (i'm pretty sure you'd know what it is if you were looking it up!)
NHS symptom checker
Advantages
Expert advice
Tailored for you, takes age/weight into account
Asks questions specifically for your symptoms, and makes a judgement according to how you answer.
100% trust worthy.
Gives you clear advice regarding what to do, in a simple format.
An expert system would most likely have a further means of contact, such as telephone, making things even more personal.
Disadvantages
Only one opinion available.
Takes a long time to be diagnosed.
Options are limited, e.g. on the NHS system, there are only roughly 40 possible symptoms, but is this really there are definitely more problems a person can encounter.
NHS requires personal information, such as address and date of birth, this could affect people and put them off using the service.
Sometimes expert systems aren't always the answer, such as someone wanting herbal treatments as a pose to conventional methods.
