FOUNDATION FOR INTELLIGENT PHYSICAL AGENTS
FIPA Nomadic Application Support
Ontology Specification
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Document title |
FIPA Nomadic Application Support Ontology Specification |
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Document number |
OC00065C |
Document source |
FIPA Nomadic Application Support |
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Document status |
Obsolete |
Date of this status |
2001/08/10 |
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Supersedes |
None |
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Contact |
fab@fipa.org |
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Change history |
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2000/08/04 |
Document made obsolete by FIPA00014 |
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2001/08/10 |
Line numbering added |
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© 2000 Foundation for Intelligent Physical Agents - http://www.fipa.org/
Geneva, Switzerland
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Notice |
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Use of the technologies described in this specification may infringe patents, copyrights or other intellectual property rights of FIPA Members and non-members. Nothing in this specification should be construed as granting permission to use any of the technologies described. Anyone planning to make use of technology covered by the intellectual property rights of others should first obtain permission from the holder(s) of the rights. FIPA strongly encourages anyone implementing any part of this specification to determine first whether part(s) sought to be implemented are covered by the intellectual property of others, and, if so, to obtain appropriate licenses or other permission from the holder(s) of such intellectual property prior to implementation. This specification is subject to change without notice. Neither FIPA nor any of its Members accept any responsibility whatsoever for damages or liability, direct or consequential, which may result from the use of this specification. |
Foreword
The Foundation for Intelligent Physical Agents (FIPA) is an international organization that is dedicated to promoting the industry of intelligent agents by openly developing specifications supporting interoperability among agents and agent-based applications. This occurs through open collaboration among its member organizations, which are companies and universities that are active in the field of agents. FIPA makes the results of its activities available to all interested parties and intends to contribute its results to the appropriate formal standards bodies.
The members of FIPA are individually and collectively committed to open competition in the development of agent-based applications, services and equipment. Membership in FIPA is open to any corporation and individual firm, partnership, governmental body or international organization without restriction. In particular, members are not bound to implement or use specific agent-based standards, recommendations and FIPA specifications by virtue of their participation in FIPA.
The FIPA specifications are developed through direct involvement of the FIPA membership. The status of a specification can be either Preliminary, Experimental, Standard, Deprecated or Obsolete.More detail about the process of specification may be found in the FIPA Procedures for Technical Work. A complete overview of the FIPA specifications and their current status may be found in the FIPA List of Specifications. A list of terms and abbreviations used in the FIPA specifications may be found in the FIPA Glossary.
FIPA is a non-profit association registered in Geneva, Switzerland. As of January 2000, the 56 members of FIPA represented 17countries worldwide. Further information about FIPA as an organization, membership information, FIPA specifications and upcoming meetings may be found at http://www.fipa.org/.
Contents
2 Nomadic Application Support Ontology
2.1.1 Quality of Service Description
2.1.7 Communication Channel Description
2.1.8 Transport Protocol Description
2.1.9 Transport Protocol Selection
2.2.1 Not Understood Exception Propositions
2.2.2 Refusal Exception Propositions
2.2.3 Failure Exception Propositions
3 Message Representation Ontology
3.1.1 Message Representation Description
This document is part of the FIPA specifications and deals with agent middleware to support applications in nomadic environment. This specification also forms part of the FIPA Nomadic Application Support Specification [FIPA00066] and contains specifications for:
· Ontological descriptions.
This section describes a set of frames that represent the classes of objects in the domain of discourse within the framework of the FIPA-Nomadic-Application and FIPA-MTS-QoS ontologies.
The following terms are used to describe the objects of the domain:
· Frame. This is the mandatory name of this entity that must be used to represent each instance of this class.
· Ontology. This is the name of the ontology, whose domain of discourse includes the parameters described in the table.
· Parameter. This is the mandatory name of a parameter of this frame.
· Description. This is a natural language description of the semantics of each parameter.
· Presence. This indicates whether each parameter is mandatory or optional.
· Type. This is the type of the values of the parameter: Integer, Word, String, URL, Term, Set or Sequence.
· Reserved Values. This is a list of FIPA-defined constants that can assume values for this parameter.
This type of object represents the quality of service of the transport protocol.
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Frame Ontologies |
qos FIPA-Nomadic-Application FIPA-MTS-QoS |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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line-rate |
The bandwidth in one direction over the link. |
Optional[1]
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rate-value |
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throughput |
The number of user data bits successfully transferred in one direction across the link[2]. Successful transfer means that no user data bits are lost, added or inverted in transfer. |
Optional |
rate-value |
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throughput-std-dev |
The current standard deviation of the throughput within a time unit. |
Optional |
rate-value |
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rtt |
The round trip time, which is the time, required for a data segment to be transmitted to a peer entity and a corresponding acknowledgement sent back to the originating entity. |
Optional |
time-value |
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rtt-std-dev |
The standard deviation of the round-trip time within a time unit. |
Optional |
time-value |
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delay |
The (nominal) time required for a data segment to be transmitted to a peer entity. |
Optional |
time-value |
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delay-std-dev |
The standard deviation of the delay time within a time unit. |
Optional |
time-value |
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mean-up-time |
The expected uptime of an established link. |
Optional |
time-value |
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omission-rate |
The probability that a data segment is not transmitted correctly over a link. |
Optional |
probability-value |
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ber |
The ratio of the number of bit errors to the total number of bits transmitted in a given time interval[3]. |
Optional |
probability-value |
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frame-error-rate |
The probability that a data segment is not transmitted correctly over a link. |
Optional |
probability-value |
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conn-setup-delay |
The (sampled) delay to establish a connection between communicating entities. |
Optional |
time-value |
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conn-setup-failure-prob |
The ratio of total call attempts that result in call setup failure to the total call attempts in a population of interest. |
Optional |
probability-value |
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status |
The connectivity status of the link. |
Optional |
Word |
Connected Disconnected Connecting |
This type of object represents a data transfer value.
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Frame Ontologies |
rate-value FIPA-Nomadic-Application FIPA-MTS-QoS |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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direction |
The direction in which this value is measured. |
Mandatory
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Word |
Inbound Outbound |
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unit |
The unit in which the value is represented. |
Mandatory |
Word |
GBits/s MBits/s KBits/s Bits/s |
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value |
The rate value. |
Mandatory |
Number |
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This type of object represents a time value.
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Frame Ontologies |
time-value FIPA-Nomadic-Application FIPA-MTS-QoS |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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direction |
The direction in which this value is measured. |
Optional[4]
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Word |
Inbound Outbound |
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unit |
The unit in which the value is represented. |
Mandatory |
Word |
h m s ms |
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value |
The time value. |
Mandatory |
Number |
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This type of object represents a probability value.
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Frame Ontologies |
probability-value FIPA-Nomadic-Application FIPA-MTS-QoS |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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direction |
The direction in which this value is measured. |
Optional
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Word |
Inbound Outbound |
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value |
The probability value which obeys the following axiom: 0•value•1 |
Mandatory |
Number |
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This type of object represents constraints that limit quality of service notifications (see [FIPA00062]).
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Frame Ontologies |
change-constraint FIPA-Nomadic-Application FIPA-MTS-QoS |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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value |
The description of the constraints. |
Mandatory |
Expression |
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This type of object represents constraints that limit quality of service notifications.
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Frame Ontologies |
time-constraint FIPA-Nomadic-Application FIPA-MTS-QoS |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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type |
The type of the constraint. If the type Every is used, then the expression becomes true after value and thereafter at intervals of value. If the type After is used, then the expression becomes true only after value. |
Mandatory |
Word |
Every After |
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value |
The time value. |
Mandatory |
time-value |
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This type of object represents a communication channel.
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Frame Ontologies |
comm-channel FIPA-Nomadic-Application FIPA-Communication-Management |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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name |
The logical name of the communication channel. |
Optional[5] |
Word |
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target-addr |
The target transport address of the communication channel. This may also be the address of a gateway ACC. |
Optional |
URL |
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options |
A list of optional parameters for the communication channel. |
Optional |
Set of property (see [FIPA00023]) |
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This type of object represents a transport protocol.
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Frame Ontologies |
transport-protocol FIPA-Nomadic-Application FIPA-Communication-Management |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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name |
The logical name of the transport protocol. |
Mandatory |
Word |
See [FIPA00074] |
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gw-addr |
The transport address of the gateway ACC. |
Optional |
URL |
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dest-addr |
The transport address of the ultimate destination. If this address is present, but gw-addr is not, then the Control Agent may select the most appropriate gateway transport address to use. |
Optional |
URL |
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options |
A list of optional parameters for the transport protocol. |
Optional |
Set of property |
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This type of object represents a selection of transport protocol.
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Frame Ontologies |
transports FIPA-Nomadic-Application FIPA-Communication-Management |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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send |
A list of transport protocols supported for sending messages. |
Mandatory |
Sequence of transport-protocol |
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recv |
A list of transport protocols supported for receiving messages. |
Mandatory |
Sequence of transport-protocol |
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The exceptions for the FIPA-Nomadic-Application ontology follow the same form and rules as specified in [FIPA00023].
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Communicative Act Ontology |
not-understood FIPA-Nomadic-Application |
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Predicate Symbol |
Arguments |
Description |
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unsupported-act |
String |
The receiving agent does not support the specific communicative act; the string identifies the unsupported communicative act. |
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unexpected-act |
String |
The receiving agent supports the specified communicative act, but it is out of context; the string identifies the unexpected communicative act. |
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unsupported-value |
String |
The receiving agent does not support the value of a message parameter; the string identifies the message parameter name. |
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unrecognised-value |
String |
The receiving agent cannot recognise the value of a message parameter; the string identifies the message parameter name. |
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Communicative Act Ontology |
refuse FIPA-Nomadic-Application |
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Predicate symbol |
Arguments |
Description |
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unauthorised |
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The sending agent is not authorised to perform the function. |
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unsupported-function |
String |
The receiving agent does not support the function; the string identifies the unsupported function name. |
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missing-argument |
String |
A mandatory function argument is missing; the string identifies the missing function argument name. |
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unexpected-argument |
String |
A mandatory function argument is present which is not required; the string identifies the unrequired function argument. |
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unexpected-argument-count |
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The number of function arguments is incorrect. |
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missing-parameter |
String String |
A mandatory parameter is missing; the first string represents the object name and the second string identifies the missing parameter name. |
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unexpected-parameter |
String String |
The receiving agent does not support the parameter; the first string represents the function name and the second string identifies the unsupported parameter name. |
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unrecognised-parameter-value |
String String |
The receiving agent cannot recognise the value of a parameter; the first string represents the object name and the second string identifies the parameter name of the unrecognised parameter value. |
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already-open |
String |
The specified communication channel is already open; the string identifies the communication channel. |
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not-open |
String |
The specified communication channel is not open; the string identifies the communication channel. |
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already-activated |
String |
The specified transport protocol is already activated; the string identifies the transport protocol. |
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not-active |
String |
The specified transport protocol is not active; the string identifies the transport protocol. |
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unrecognised-comm-channel |
String |
The specified communication channel is not recognised; the string identifies the communication channel. |
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unsupported-protocol |
String |
The specified transport protocol is not supported; the string identifies the transport protocol. |
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Communicative Act Ontology |
failure FIPA-Agent-Management |
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Predicate symbol |
Arguments |
Description |
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internal-error |
String |
An internal error occurred; the string identifies the internal error. |
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open-failed |
String |
The opening of a communication channel failed; the string identifies the failure reason. |
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transient-failed |
String |
The opening/closing of a communication channel or the activation/deactivation of a transport protocol failed; the string identifies the failure reason. |
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close-failed |
String |
The closing of a communication channel failed; the string identifies the failure reason. |
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activation-failed |
String |
The activation of a transport protocol failed; the string identifies the failure reason. |
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deactivation-failed |
String |
The deactivation of a transport protocol failed; the string identifies the failure reason. |
This section describes a set of frames that represent the classes of objects in the domain of discourse within the framework of the FIPA-Message-Representation ontology.
This type of object represents an ACL message representation.
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Frame Ontologies |
msg-representation FIPA-Message-Representation |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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name |
The name of the message representation. |
Mandatory |
Word |
See [FIPA00068] |
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options |
A list of parameters for the message representation. |
Optional |
Set of property |
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This type of object represents a selection of message representations.
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Frame Ontologies |
msg-rep-selection FIPA-Message-Representation |
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Parameter |
Description |
Presence |
Type |
Reserved Values |
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send |
A list of message representations supported for sending messages. |
Mandatory |
Sequence of msg-representation |
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recv |
A list of message representations supported for receiving messages. |
Mandatory |
Sequence of msg-representation |
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[FIPA00023] FIPA Agent Management Specification. Foundation for Intelligent Physical Agents, 2000. http://www.fipa.org/specs/fipa00023/
[FIPA00062] FIPA Nomadic Application Support Monitor Agent Specification. Foundation for Intelligent Physical Agents, 2000. http://www.fipa.org/specs/fipa00062/
[FIPA00066] FIPA Nomadic Application Support Specification. Foundation for Intelligent Physical Agents, 2000. http://www.fipa.org/specs/fipa00066/
[FIPA00068] FIPA ACL Message Representation Library Specification. Foundation for Intelligent Physical Agents, 2000. http://www.fipa.org/specs/fipa00068/
[FIPA00074] FIPA Agent Message Transport Protocol Library Specification. Foundation for Intelligent Physical Agents, 2000. http://www.fipa.org/specs/fipa00074/
[ITUE800] Recommendation E.800 - Telephone Network and ISDN, Quality of Service, Network Management and Traffic Engineering, Terms and Definitions Related to Quality of Service and Network Performance Including Dependability. International Telecommunication Union, International Telecommunication Union, 1995.
[ITUX135] Recommendation X.135 - Speed of Service (delay and throughput), Performance Values for Public Data Networks when Providing Packet-Switched Services. International Telegraph and Telephone Consultative Committee, 1993.
[1] While all of the parameters for this object are optional, a valid qos object will contain at least one parameter.
[2] See [ITUX135].
[3] See [ITUE00].
[4] This parameter is mandatory for those quality of service values that have a different value depending upon the direction.
[5] Either the :name parameter or the :target-addr parameter must be present in this object.