However, in my opinion, one can have too much data. Information, by
definition, is more than data and conveys something understandable and
useful that was not known before. Information deals with raising entrophy.
Long story short, designers of systems need to undersatnd the difference in
data and information - ands, ideally, provide just what is needed when it
is needed to address the circumstances of the situation.
Ed Hammond
"lakewood at copper.net"
<lakewood To:
openehr-technical at openehr.org
Sent by: cc:
owner-openehr-technical@ Subject: Re: Issue 1
openehr.org
05/28/2005 10:47 PM
Please respond to
openehr-technical
Hi Dr R LONJON,
This response pertains to:
"...
In short according to Shannon (theory of information), too much
information, no precise, mask the good information to take a decision.
..."
REFERENCE (Shannon Information):
http://www.iscid.org/encyclopedia/Shannon_Information
"...
concerned with quantifying information (usually in terms of number of bits)
...
as they are communicated sequentially from a source to a receiver ...
The amount of ...information contained in a string of characters is
inversely related to the probability of the occurrence of the string
...
Shannon information is solely concerned with the improbability or
complexity of a string of characters rather than its patterning or
significance
..."
REFERENCE (Complexity): http://www.iscid.org/encyclopedia/Complexity
"...
often used to describe single systems made of multiple interacting parts.
However,
... can be used for a large variety of applications
...* *Computational ... Time ... Space ... Kolmogorov (algorithmic) ...
Connectivity ...
Descriptive/Interpretative ... Functional
..."
Decision Theory (e.g., http://www.answers.com/topic/decision-theory)
would be more appropriate.
Once Healthcare-related information is available to a Practitioner one
enters an environment in which
the types of decisions made and the content upon which they are based
are outside of
Communications Theory (see Decision Theory Reference). Rarely is there
'too much' information.
A more important issue is Upon which portion of the available
information, or all of it, should a
decision be based?
Regards!
-Thomas Clark
Dr LONJON Roger wrote:
>Hi all,
>the exercise of medicine is an art.
>This is not an exact science as the physics.
>With the biology, the anatomo-pathology, the x'ray explorations and
R.M.Imaging,
>the physician gets information that are validated.
>They are validated because there was physical signal registration that was
>digital, pictures in RMI. These pictures, as blades of microscope, can be
>reread, in the time by other physicians.
>They have a statute of data validated by the physician and therefore
publishable
>in the file of cares of the sick.
>The diagnosis makes by the physician is the result of a reasoning, from
one
>wholes of information that it to on his patient. One teaches it to
students
>future physicians.
>The diagnosis is sometimes fast, but often it asks for a delay of several
days
>weeks or years!! or never !!
>Hypoth?seses, elaborate by the physician, are only some likely, probable
>information.
> In France, there is an agreement to say that it is about " personal "
Notes
>that are not validated.and what are the property of the physician.
> They are not therefore publishable and especially no opposable in
judicial
>proc?s case.
> In short according to Shannon (theory of information), too much
information, no
>precise, mask the good information to take a decision.
>
> Distressed for my English!!
>
>Dr R LONJON
> France
>
>-
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>please send a message to d.lloyd at openehr.org
>
>
>
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