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[protege-owl] Query: representing network IP address in OWL-DL, in particular subnet ranges
wfitzgerald at tssg.org
Wed Aug 13 06:17:05 PDT 2008
Dear OWL Experts,
[problem domain: ranges of "things" (possibly in a certain order)]
I am wondering if anyone may have an opinion of how to represent network
IP addresses in OWL-DL.
It appears representing network ranges/subnets seems to be a little tricky.
How I currently handle/hacked a crude solution is to have a class called IP.
Within that Class, individuals for example ip1, ip2 etc have data-type
properties to integers.
ip1 hasIPStartRange 192.168.1.0
ip1 hasIPEndRange 192.168.1.255
Thus ip1 represents the subnet 192.168.1.0/24
ip2 could be for example:
ip2 hasStartIPRange 10.37.1.1
ip2 hasEndIPRange 10.37.1.1
Thus representing one single ip address.
External individuals of other classes for example Router or Server could
then have a object property (hasIPaddress) to individuals of the IP class.
I was also thinking of breaking the IP address down into 4 individuals
(segments) who each have a single data-type property to an integer. For
ip1 hasIPSegment 192
ip2 hasIPSegment 168
ip3 hasIPSegment 1
ip4 hasIPSegment 1
Their conjunction is to represent IP address of 192.168.1.1
Then setting a Server individual (serv1) for example to the collection
of IP segments that are required:
serv1 hasIPAddressSegment ip1
serv1 hasIPAddressSegment ip2
serv1 hasIPAddressSegment ip3
serv1 hasIPAddressSegment ip4
However, how does one "order/sequence" within an ontology so that it
does not become "18.104.22.168" for example?
I would be delight to hear how people usually handle ranges of "things"
(term used loosely here) in terms of OWL-DL. Is this a common modelling
Additonal info:I create and use ontologies from within the 3.4 Protege
GUI environment. I have a copy of the latest August build installed.
Pellet and SWRL are used.
| William M. Fitzgerald (MSc, BSc) |
|Researcher | PhD Student |
|Telecommunications Software & Systems Group,| Computer Science Dept., |
|ArcLabs Research and Innovation Centre, | University College Cork,|
|Waterford Institute of Technology, | Cork. |
|WIT West Campus, | |
|Carriganore, | |
|Waterford. | |
|Office Ph: +353 51 302937 | |
|Mobile Ph: +353 87 9527083 | |
|Web: www.williamfitzgerald.org |
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