ash wrote:
> interestingly, thunderbird thought this was an e-mail scam......

It thinks that any message containing an IP address as opposed to a
domain name in a URL is a scam or a phishing attempt. A reasonable
supposition, but not always true.

Tim C

> 
> ash
> 
> Andrew McIntyre wrote:
>> Hello Tim,
>>
>> Yes exactly, Medical-Objects has clients running Webservice clients
>> from behind firewalls now, and the connection is up only when their
>> internet connection is up. Presumably there is no point in delivering
>> a message when no one is there to read it. Many of our trial practices
>> are only up during normal working hours and are working well. Email is
>> a store and forward system and a well proven one. It lacks sender
>> authentication which is a big problem as it has caused the spam
>> problems. The XDS model does not have a well defined security
>> interface. The standard answer is "Use SSL" which is not really an
>> answer.
>>
>> There is very little difference between polling the repository for new
>> messages and retrying sending to a client that is currently offline,
>> but the latter is a push model and you only retry when you have
>> something to send. When it succeeds you know you have delivery. With
>> store and forward you send successfully but that is no guarantee that
>> the recipient has collected the message.
>>
>> It can, and is being done now by your average GP surgery. Its totally
>> point to point and realtime.
>>
>> Here is one running on my notebook, as well as SOAP it supports HTTP
>> so you can see if its running using this URL in a browser.
>>
>> http://202.44.75.22:2511/NEXUS/AB5A38B7-7372-4BB3-B724-EA8886571336/HL7/ADMIN?METHOD=ALIVE
>>
>>
>> It also supports SOAP as per our wsdl.
>>
>> While XDS is being pushed by some, I am not sure that it really solves
>> any problems that cannot be solved using a push, point to point model.
>> It has been put up for this years IHE demo but we are yet to see a
>> working implementation to interact with and the security model is
>> quite vague. As an internal system, within a large organisation it may
>> have some uses but what is wanted currently is point to point delivery
>> with good security and authentication *between* organisations. A
>> webservice (be it HTTP or LLP or SOAP) model with message level
>> security is a good fit to this need.
>>
>> Tuesday, May 9, 2006, 9:07:04 PM, you wrote:
>>
>> TC> Peter MacIsaac wrote:
>> TC> ...
>>>> Under a full web service model the IT systems of small business
>>>> enterprises
>>>> (like GPs) would need to have the capacity to be always connected to
>>>> the
>>>> internet ...
>>
>> TC> As discussed previously, I am not at all convinced that this is true.
>>
>> TC> Why does a Web service running on, say, a GP practice system, always
>> TC> need to be available, 24x7? Is the practice open 24x7? Nope. So
>> why does
>> TC> the practice's Web services need to be available all the time? Of
>> TC> course, other providers wishing to use the practice's Web services
>> to,
>> TC> say, deliver a report to them need to have robust retry and fallback
>> TC> mechanisms to cope with a Web service not being available, but
>> they need
>> TC> those regardless, because no network, including the Internet, is 100%
>> TC> reliable and to build systems of Web services based on the assumption
>> TC> that everything will always be available is asking for trouble. For
>> TC> further elaboration on these ideas, see
>> TC> http://ozdocit.org/pipermail/gpcg_talk/2006-April/002906.html
>>
>> TC> Tim C
>> TC> _______________________________________________
>> TC> Gpcg_talk mailing list
>> TC> [email protected]
>> TC> http://ozdocit.org/cgi-bin/mailman/listinfo/gpcg_talk
>>
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>>
>> TC> This message was checked by NOD32 antivirus system.
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>>
>>
>>
>>
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