Automation systems and integration — Use case of capability profiles for cooperation between manufacturing software units

This document describes an approach for using ISO 16100 to achieve cooperation between software agents by exchanging manufacturing software unit (MSU) capability profiles. The exchanged profiles among agents describe the manufacturing capabilities requested by the requester and to be fulfilled by the performer.

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Published
Publication Date
26-May-2019
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6060 - International Standard published
Completion Date
27-May-2019
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TECHNICAL ISO/TR
REPORT 16161
First edition
2019-06
Automation systems and
integration — Use case of capability
profiles for cooperation between
manufacturing software units
Reference number
ISO/TR 16161:2019(E)
©
ISO 2019

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ISO/TR 16161:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ISO/TR 16161:2019(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Dialogue between C-subsystem and P-subsystem . 2
6 Procedure until starting the dialogue between C-subsystem and P-subsystem .3
6.1 Overview . 3
6.2 Procedure for identifying the dialogue partner using capability profile . 3
6.3 Capability profile . 6
6.3.1 General. 6
6.3.2 Description of specific part . 6
6.4 Capability profile template and examples . 6
6.4.1 Capability profile template . 6
6.4.2 Capability profile example .14
7 Message .17
7.1 Structure of Message.17
7.2 Control Message .19
7.2.1 Notify message .19
7.2.2 Ask Response message .20
7.2.3 Warn message .20
7.3 PerformativeMessage .21
7.3.1 Request message . .22
7.3.2 Promise message .23
7.3.3 Counter message(P: Counter) .23
7.3.4 Accept message .24
7.3.5 Cancel message (against Counter C: Cancel) .24
7.3.6 Counter message(C: Counter) .24
7.3.7 Decline message .25
7.3.8 Cancel message (P: Cancel).25
7.3.9 Cancel message (C: Cancel).25
7.3.10 Report Completion message .26
7.3.11 DeclareComplete message .26
7.3.12 Decline Report message .27
8 Communication protocol between C-subsystem and P-subsystem .27
8.1 General .27
8.2 Interface between C-subsystem and P-subsystem .27
8.3 Message communication in a dialogue between C-subsystem and P-subsystem .28
Annex A (informative) Message definition in JSON schema .30
Annex B (informative) Management Layer .39
Annex C (informative) Customer-performer model .48
Annex D (informative) Examples of messages .49
Annex E (informative) Example of customization of state transition diagram of dialogue .54
Annex F (informative) A solution for handling state transitions of dialogues, messages and
capability profile .58
Annex G (informative) Mapping table of verbs between OAGiS and this document.60
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Bibliography .61
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ISO/TR 16161:2019(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 184, Automation systems and integration,
Subcommittee SC 5, Interoperability, integration, and architectures for enterprise systems and automation
applications.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
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ISO/TR 16161:2019(E)

Introduction
The motivation for ISO 16100 stems from the industrial and economic environment, in particular:
a) a growing base of vendor-specific solutions;
b) user difficulties in applying standards;
c) the need to move to modular sets of system integration tools;
d) the recognition that application software and the expertise to apply that software are assets of the
enterprise.
ISO 16100 is an International Standard for the computer-interpretable and human readable
representation of a capability profile. Its goal is to provide a method to represent the capability of
a manufacturing software unit (MSU) in manufacturing application software relative to its role
throughout the life cycle of a manufacturing application, independent of a particular system architecture
or implementation platform. This can lead to reduced production and information management costs to
users and vendors/suppliers of manufacturing applications.
This document describes an application of ISO 16100. Manufacturing software agents, which are one
type of MSU, achieve interoperation using capability profiles specified in ISO 16100.
This document describes message language and protocol for software agents to collaborate with each
other to emerge systems function. Presenting the MSU capability profile defined in ISO 16100-3, the
agents mutually recognize the capability of manufacturing activity and recognizable messages. Software
agents that need manufacturing activities are called customers, and agents that provide manufacturing
activities are called performers. Customers describe the request messages for manufacturing activities
by the message language. Performers describe the report messages of the result of the manufacturing
activities by the message language.
Agent Communication Language (ACL), proposed by the Foundation for Intelligent Physical Agents
(FIPA), is a message language exchanged with multi agents, and the protocol that defines the sequence
of messages is a protocol to which the framework of interaction protocol is applied and identifies the
agent in order to use the ontology prescribed by FIPA. By contrast, this document describes the protocol
and message language in which the software agent acting as a customer and the software agent acting
as a performer interact in a one-to-one manner and each software agent is identified using a capability
profile specified in ISO 16100-3. Therefore, the protocol and message language described in ACL and in
this document are different.
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TECHNICAL REPORT ISO/TR 16161:2019(E)
Automation systems and integration — Use case of
capability profiles for cooperation between manufacturing
software units
1 Scope
This document describes an approach for using ISO 16100 to achieve cooperation between software
agents by exchanging manufacturing software unit (MSU) capability profiles. The exchanged profiles
among agents describe the manufacturing capabilities requested by the requester and to be fulfilled by
the performer.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
customer
requester of the manufacturing activity
3.2
C-subsystem
manufacturing software unit requesting the manufacturing activity
3.3
performer
provider of the manufacturing activity
3.4
P-subsystem
manufacturing software unit providing the manufacturing activity
3.5
capability profile service provider
software that implements the capability profile interface
[SOURCE: ISO 16100-3:2005, 3.1.2]
3.6
service provider
entity that plays the role of capability profile service provider (3.5) and is responsible for preparing and
delivering a pair of customer (3.1) and performer (3.3)
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4 Abbreviated terms
MSU Manufacturing Software Unit
UML Unified Modelling Language
URI Uniform Resource Identifier
5 Dialogue between C-subsystem and P-subsystem
The interaction that occurs between the orderer and the contractor is replaced by the dialogue between
a customer and a performer. The dialogue between a customer and a performer can be represented by
a sequence of actions associated with the order. The sequence of actions can be represented by the
state transition diagram of dialogue. In a production system, the customer is the C-subsystem and the
performer is the P-subsystem.
Figure 1 shows a dialogue that occurs between a C-subsystem and a P-subsystem. In Figure 1,
"C: Request" is the operation of the request to a P-subsystem from a C-subsystem. "P: Promise" is an
action promising that the P-subsystem has accepted the request to the C-subsystem. "P: Decline" is an
action that the P-subsystem declines with respect to the request to the C-subsystem. Sometimes the
P-subsystem offers a proposal. The C-subsystem accepts this proposal. The transition from state 2 to
state 2’ shows a sequence of these actions. On the other hand, C-subsystem can offer another proposal
for the proposal offered by the P-subsystem. The transition from state 2’ to state 2 shows a sequence of
these actions.
It is assumed that the dialogue between the orderer and the contractor can be expressed by the state
transition diagram of Figure 1, and messages are designed in accordance with this assumption. The
following is a description of each state:
— State 1: initial state
— State 2: offer an order
— State 3: accept the order
— State 4: complete the order
— State 5: final state
— State 2': offer a proposal
— State 3', 2'', 3'': final state
Annex E gives an example of customization of a state transition diagram of dialogue.
Annex F proposes a solution for handling state transitions of dialogues, messages and capacity profile.
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Figure 1 — State transition diagram of dialogue
6 Procedure until starting the dialogue between C-subsystem and P-subsystem
6.1 Overview
C-subsystem acquires the URIs of the P-subsystem that can perform a certain manufacturing activity
from the service provider and the P-subsystem requested to perform the activity acquires the URIs of
the C-subsystem which requests to perform the activity from the service provider. C-subsystem and
P-subsystem start dialogue using the obtained URI respectively. When the C-subsystem sends the first
Request message to the P-subsystem, the dialogue shown in Figure 1 starts and exchanges messages
according to the procedure in Figure 1. This document assumes centralized control of bids by service
providers which are defined in Clause 3. Other bidding processes, such as the distributed bidding
process, are future works and are not described in this document.
6.2 Procedure for identifying the dialogue partner using capability profile
The procedure for identifying the dialogue partner and establishing the dialogue is as follows.
a) C-subsystem and P-subsystem register each capability profile in advance to the service provider.
The details of the activities requested by C-subsystem are described in the capability profile of
C-subsystem, and the details of the activities that P-subsystem can perform in the capability profile
of P-subsystem are described.
b) The C-subsystem acquires the capability profile of the P-subsystem satisfying its own request
from the service provider, and the P-subsystem acquires the capability profile of the requesting
C-subsystem from the service provider. On matching of the capability profile, this procedure
conforms to the procedure specified in the ISO 16100 series.
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c) Before starting the dialogue in Figure 1, there are two cases of message exchanges between
C-subsystem and P-subsystem. First case is that the C-subsystem sends a Notify message to the URI
of the acquired P-subsystem, and the P-subsystem that received the Notify message immediately
sends an Ask Response message to the C-subsystem. The other case is that the P-subsystem
sends an Ask Response message even if there is no Notify message from the C-subsystem. The
P-subsystem can repeatedly send the Ask Response message periodically or at an arbitrary timing
until the response message is sent from the C-subsystem to the Ask Response message.
d) The dialogue begins when C-subsystem sends a Request message to P-subsystem. Subsequently,
C-subsystem and C-subsystem exchange messages according to Figure 1.
The MSU realizes many different functions. The concern here is a communication function including
how the C-subsystem and the P-subsystem establish a dialogue. Therefore, what is described here
focuses on the communication function between the MSU as the role of the C-subsystem and the
MSU as the role of the P-subsystem and the use of the capability profile in the communication. As
Registration of capability profile in Figure 2 shows, before starting interaction between MSUs, each
MSU needs to register each capability profile in advance with the service provider. The service provider
determines the relationship between customer and performer between MSUs and confirms that both
are connectable. This document assumes that the service provider has finished associating customer
and performer between MSUs and that the service provider confirms that it can connect between the
associated MSUs. The customer-performer model is illustrated in Annex C.
Figure 2 shows that the sequence diagram named ‘C-P cooperation’ consists of the sequence diagram
named ‘RegistationOfCapabilityProfiles’, the sequence diagram named ‘C-P dialogue’, and the sequence
diagram named ‘C-P dialogue base’. The sequence diagram named ‘RegistationOfCapabilityProfiles’
shows that C-subsystem and P-subsystem register their capability profiles in the service provider
beforehand. Since this document is an application example of capability profile in this document,
details of 'RegistationOfCapabilityProfiles' and service provider are not explained. The sequence
diagram named 'Prepare C-P dialogue' in Figure 2 consists of the sequence diagram named 'get
capability profile' and the sequence diagram named 'send notify'. The first 'get capability profile'
shows the interaction between MSU and the service provider. MSU acting as C-subsystem acquires
capability profile of MSU acting as P-subsystem from the service provider. On the other hand, this
P-subsystem obtains the capability profile of C-subsystem which is a partner of P-subsystem from the
service provider. The second 'send notify' has two cases. First case is that when C-subsystem sends
Notify message to P-subsystem and P-subsystem sends Ask Response to C-subsystem, the other case
is when the P-subsystem sends Ask Response to the C-subsystem even if the P-subsystem does not
receive the Notify message from the C-subsystem. ‘Ask for Request message’ in ‘send notify’ shows that
P-subsystem can repeatedly send AskResponse until the C-subsystem responds with Request message.
The sequence diagram named C-P dialogue base in Figure 2 is a sequence diagram of the communication
between the C-subsystem and the P-subsystem of Figure 1. As a result, only the C-subsystem needs to
acquire the URI of P-subsystem, so parameter p is implementation-dependent and is not specified in
this document, in particular. The sequence diagram of C-P dialogue base is described in Annex B.
Message exchanged between C-subsystem and P-subsystem is specified in Clause 7. Message
communication between C-subsystem and P-subsystem is explained in more detail in Clause 8.
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Figure 2 — Interaction overview diagram of dialogue
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6.3 Capability profile
6.3.1 General
Using the capability profile, a MSU identifies the partner who dialogues with. Even if a C-subsystem
sends Notify mess Annex B ages at first, every dialogue is started by Invitation message of a
P-subsystem. Therefore, the communication channels of the C-subsystem need to be defined. In a case
where the C-subsystem sends a Notify message, the address of P-subsystem is needed.
6.3.2 Description of specific part
Above information is described in the specific part of capability profile according to the template of the
capability profile (see ISO 16100-3). The template of the specific part which added necessary elements
in this document and an example of this specific part are shown in 6.4.
The XML tags added to the specific part are and . These are used to describe
the information needed by the adapters.
Tag represents a manufacturing activity using a verb that the MSU provides capability.
In Figure B.1 "Overall Structure of Production Management System", production activities for each
domain implemented as MSU are represented by verbs such as Sell, Make, Buy, Bill, Pay, and so on.
The tag in the tag in the section has information on
communication between MSUs. The communication method is defined by the attribute name 'type' of
this tag, and the URI is defined by the attribute name 'address'. The communication method will be
explained in Clause 8.
Tag represents performative verbs (tag ) that can be receive and performative
verbs (tag ) of the MSU that can be sent, and tag gives information of data
types in each message item.
6.4 Capability profile template and examples
In this clause, the template which added the necessary element in the specific part of the capability
profile (see ISO 16100-3) is shown in 6.4.1, and an example of the capability profile applying this
template is shown in 6.4.2.
6.4.1 Capability profile template


 
  
   
    
     
      
     
    
    
     
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          form="unqualified"/>
        
       
       
       
      
      
     
    
   
  
 
 
  
   
    
     
      
       
      
      
     
    
    
     
      
       
      
      
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