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<td><b><font color="white"> TERMINOLOGY </font></b></td>
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The follow is a list of terms you may see through out these pages.
Most of them a taken from AOL AIM documents<br><br>
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<td valign=top><b> BOS</b></td>
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<td valign=top colspan=3>Basic OSCAR Service. This term refers to the services that form the core of the
Instant Messenger service. These services include Login/Logoff, Locate, Instant Message, Roster management,
Info management and Buddy List
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<td valign=top nowrap><b> Buddy List</b></td>
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<td valign=top colspan=3>The buddy list tool allows a user to see in near realtime when his friends (buddies)
are using the Instant Messenger service. A user may set a preference to block others from seeing him when he is on.
He may also set a permit or deny list to selectively show his presence.
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<td valign=top nowrap><b> DC</b></td>
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<td valign=top colspan=3>DC is an abbreviation for direct connection.
It is too expensive to send all client data thru server. This problem was solved
by client-to-client direct connections when one client connects to port opened by
another client to send messages, files and other information.
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<td valign=top nowrap><b> FLAP</b></td>
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<td valign=top colspan=3>FLAP is a low-level communications protocol that facilitates the development of higher-level,
record-oriented, communications layers. It is used on the TCP connection between all clients and servers.
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<td valign=top nowrap><b> ICBM</b></td>
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<td valign=top colspan=3>ICBM - Inter Client Basic Message. ICBM is a channelized client-to-client mechanism.
Currently the most user visible channel is used for Instant Messages.
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<td valign=top nowrap><b> Instant Message (IM)</b></td>
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<td valign=top colspan=3>The instant message tool allows a user to send a short message to another Instant
Messenger nickname that is delivered directly to the users screen in near realtime. This is unlike Email which
may contain larger amounts of data and may be delivered at a later time. The receiver may easily respond with an
instant message back to the sender creating a semi-realtime conversation.
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<td valign=top nowrap><b> Login/Logoff </b></td>
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<td valign=top colspan=3>The Login/Logoff tool is an internal service of the Instant Messenger client.
The tool is responsible for keeping the client connected to the Instant Messenger servers.
This includes the initial login, any migrations that occur during a users session, and the final logoff.
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<td valign=top nowrap><b> Migration </b></td>
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<td valign=top colspan=3>The process of moving a user automatically from one server to another.
A migration may happen at anytime during a users session, and is completely transparent. Although the
client may appear sluggish, no data will be lost during the migration.
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<td valign=top nowrap><b> OSCAR</b></td>
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<td valign=top colspan=3>Open System for Communication in Realtime - the internal project name
(as opposed to the external marketing name) used to identify Instant Messenger.
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<td valign=top nowrap><b> SSI</b></td>
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<td valign=top colspan=3>A SSI (server-stored information)
is a service that allow client to store its contact list data (buddies, groups,
comments, visibility, invisibility, ignore, perms mask) on the server.
This increases client mobility and drastically reduces network traffic and
server load. Oscar use <a href="families.html#f0013">family 0x13</a> for
this service.
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<td valign=top nowrap><b> SNAC</b></td>
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<td valign=top colspan=3>A SNAC is the basic communication unit that is exchanged between clients and servers.
The SNAC communication layers sits on top of the FLAP layer.
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<td valign=top nowrap><b> Tool</b></td>
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<td valign=top colspan=3>Tools supply the underlying support for talking between Modules and the core software.
There will be one tool for each of the services that the Instant Messenger offers. Each tool can support many modules.
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<td valign=top nowrap><b> TLV</b></td>
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<td valign=top colspan=3>TLV - Type Length Value. A tuple allowing typed opaque information to be passed through
the protocol. Typically TLV's are intended for interpretation at the core layer. Being typed, new elements can be
added w/o modifying the lower layers.
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