Section 1 shows "the start of an ontology in the telecommunication domain" that was sent to me in 1999. Its formalization and insertion in the knowledge base (KB) of WebKB-2 involved four aspects:
comms in the KB of WebKB-2 in order
to represent the source of this "comms" ontology and create unique
identifiers
for its categories, e.g. comms#network_object (in WebKB-2,
the knowledge from the various users/sources is interconnected together in the
same KB to maximize knowledge retrieval, re-use and cross-checking, but the
source of each category, link, node or relation, is saved and is exploited
for knowledge filtering and checks during updates by users);
#network; see the hyperlinked categories in
Section 2), or when an exact match was found with a WordNet category
(e.g. #multiplexer), the direct use of its identifier
(alternatively, the link '=' could have been used, but in this
application, we saw no point in storing the comms identifier);
'<' and '>' respectively represent the links
subtypeOf and subtype).Section 2 shows the result. To ease the comparison with the original taxonomy, click here to see Section 2 in a new window.
The representations are in the courier font. In Section 2 they are enclosed
within the XHTML marks <KR> and </KR> to permit WebKB-2 to distinguish them
from regular text.
This file has already been parsed by WebKB-2 and its statements are in the KB.
Click here
to see a hierarchy of the subtypes of
comms#comms_object from which you can navigate to other categories.
Telecommunications
Telecommunications technology
ATM (asynchronous transfer mode)
Frame Relay
GSM (group special mobile, global system mobile, cellular, mobile phone, pcs)
VPN (virtual private network, private network)
CTI (computer telephony integration)
ISDN (integrated services digital network)
SS7 (signaling system 7, signaling system,ccs7, common channel signal)
IBDN (integrated building distribution network)
DSL (digital subscriber line, HDSL, VDSL)
ADSL (asynchronous subscriber line, assymetric digital subscriber line)
SONET (SDH)
Network Management - manages communications network
TMN (telecommunication management network)
Network management protocol
Cmip (common management information protocol)
Smtp (simple mail transfer protocol, simple network management protocol)
Traffic management (even though these concepts exist under network technology -
they also have software to manage traffic
ADSL (asynchronous subscriber line, assymetric digital subscriber line)
ATM (asynchronous transfer mode)
Frame Relay
ISDN (integrated services digital network)
SS7 (signaling system 7, signaling system, ccs7, common channel signal)
DSL (digital subscriber line, HDSL, VDSL)
SONET (SDH)
Transmission Medium
WDM (wave length division multiplexing)
Fibre (fibre, optics, fibre cable, optic cable)
Microwave (mw link, mw connect)
Cable (copper cable, twisted pair, buried cable, cable load)
Satellite (earth terminal, earth station, ground terminal, ground station,uplink, downlink)
VSAT
Wireless
Broadband (broadband network, broadband communication, broadband channel)
Switching
Toll switch
Central office (office switch, co switch, digital switch, telephon* office, switch office,
central office code)
Router (bridge, gateway)
Tandem (tandem switch, tandem office)
PBX (public branch exchange
International gateway (international switch, gateway switch, gateway)
comms#comms_object (^top concept type in the comms ontology^)
< pm#Domain_object,
> comms#network_object comms#telecom_object comms#switching_object comms#transmission_object,
O #telecommunication_domain; //'O' means "object of"
comms#network_object
> comms#TMN comms#CMIP comms#SMTP comms#traffic_object;
comms#TMN (^telecommunication management network^) < #network;
comms#CMIP (^common management information protocol^) < #communications_protocol;
comms#SMTP (^simple mail transfer protocol^) < #communications_protocol;
comms#traffic_object
> comms#telecom_and_traffic_object;
comms#telecom_and_traffic_object
> #asynchronous_transfer_mode comms#frame_relay comms#ISDN
comms#subscriber_line;
comms#frame_relay < #electrical_relay; //subtype of #electronic_device
comms#ISDN (^integrated services digital network^);
comms#subscriber_line < #electronic_device,
> comms#ADSL comms#DSL;
comms#ADSL (^asynchronous subscriber line, assymetric digital subscriber line^);
comms#DSL (^digital subscriber line, HDSL, VDSL^);
comms#telecom_object
> comms#telecom_and_traffic_object comms#telecom_network_object;
comms#telecom_network_object < #network,
> comms#VPN comms#IBDN comms#CTI comms#GSM comms#SS7 comms#SONET;
comms#VPN (^(virtual) private network^);
comms#IBDN (^integrated building distribution network^);
comms#CTI (^computer telephony integration^);
comms#GSM (^group special mobile, global system mobile, cellular, mobile phone, pcs^);
comms#SS7 (^signaling system, ccs7, common channel signal^);
comms#SONET (^SDH^);
comms#transmission_object
> comms#WDM #transmission_line #artificial_satellite
#microwave //incorrect modeling if "Microwave" meant "object emitting microwaves"
comms#wireless_network comms#broadband_network;
comms#WDM (^wave length division multiplexer^) < #multiplexer;
comms#wireless_network < #network;
comms#broadband_network < #network;
comms#VSAT < #artificial_satellite;
comms#switching_object < #switch,
> comms#toll_switch comms#office_switch comms#tandem_switch comms#router
comms#PBX comms#international_gateway;
comms#PBX (^public branch exchange^);
comms#international_gateway (^international switch^);