Integrated Services Digital Network (ISDN); Multiple Subscriber Number (MSN) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user

Update to references to cite latest basic call standards et al. Incorporation of minor technical modifications where necessary

Digitalno omrežje z integriranimi storitvami (ISDN) – Dopolnilna storitev: večštevilčni naročnik (MSN) – Protokol digitalne naročniške signalizacije št. 1 (DSS1) – 4. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) – Proforma specifikacija za uporabnika

General Information

Status
Published
Publication Date
30-Nov-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-2003
Due Date
01-Dec-2003
Completion Date
01-Dec-2003

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SLOVENSKI STANDARD
SIST EN 300 052-4 V1.2.4:2003
01-december-2003
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Integrated Services Digital Network (ISDN); Multiple Subscriber Number (MSN)

supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;

Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information

for Testing (PIXIT) proforma specification for the user
Ta slovenski standard je istoveten z: EN 300 052-4 Version 1.2.4
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 300 052-4 V1.2.4:2003 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 300 052-4 V1.2.4:2003
---------------------- Page: 2 ----------------------
SIST EN 300 052-4 V1.2.4:2003
EN 300 052-4 V1.2.4 (1998-06)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Multiple Subscriber Number (MSN) supplementary service;
Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 4: Abstract Test Suite (ATS) and partial Protocol
Implementation eXtra Information for Testing (PIXIT)
proforma specification for the user
---------------------- Page: 3 ----------------------
SIST EN 300 052-4 V1.2.4:2003
2 EN 300 052-4 V1.2.4 (1998-06)
Reference
REN/SPS-05145-B-4 (0hd00iqo.PDF)
Keywords
ISDN, DSS1, supplementary service, MSN,
testing, ATS, PIXIT, user
ETSI
Postal address
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Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
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Sous-Préfecture de Grasse (06) N° 7803/88
Internet
secretariat@etsi.fr
http://www.etsi.fr
http://www.etsi.org
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1998.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 300 052-4 V1.2.4:2003
3 EN 300 052-4 V1.2.4 (1998-06)
Contents

Intellectual Property Rights................................................................................................................................5

Foreword ............................................................................................................................................................5

1 Scope........................................................................................................................................................6

2 Normative references ...............................................................................................................................6

3 Definitions and abbreviations ..................................................................................................................7

3.1 Definitions ......................................................................................................................................................... 7

3.2 Abbreviations..................................................................................................................................................... 7

4 Abstract Test Method (ATM) ..................................................................................................................8

5 Untestable test purposes...........................................................................................................................8

6 ATS conventions......................................................................................................................................8

6.1 Declarations part................................................................................................................................................ 8

6.1.1 Type definitions ........................................................................................................................................... 8

6.1.1.1 Simple type definitions ........................................................................................................................... 8

6.1.1.2 Structured type definitions...................................................................................................................... 9

6.1.1.2.1 TTCN structured type definitions ..................................................................................................... 9

6.1.1.2.2 ASN.1 structured type definitions..................................................................................................... 9

6.1.1.3 ASP type definitions............................................................................................................................... 9

6.1.1.3.1 TTCN ASP type definitions.............................................................................................................. 9

6.1.1.3.2 ASN.1 ASP type definitions............................................................................................................ 10

6.1.1.4 PDU type definitions ............................................................................................................................ 10

6.1.1.4.1 TTCN PDU type definitions ........................................................................................................... 10

6.1.1.4.2 ASN.1 PDU type definitions........................................................................................................... 10

6.1.2 Test suite constants..................................................................................................................................... 10

6.1.3 Test suite parameters.................................................................................................................................. 10

6.1.4 Variables .................................................................................................................................................... 10

6.1.4.1 Test suite variables ............................................................................................................................... 10

6.1.4.2 Test case variables................................................................................................................................ 10

6.1.5 Test suite operation definitions .................................................................................................................. 10

6.1.6 Alias definitions ......................................................................................................................................... 10

6.2 Constraints part................................................................................................................................................ 11

6.2.1 Structured type constraint declaration ........................................................................................................ 11

6.2.2 ASN.1 type constraint declaration.............................................................................................................. 11

6.2.3 ASP type constraint declaration ................................................................................................................. 11

6.2.3.1 ASN.1 ASP type constraint declaration................................................................................................ 11

6.2.3.2 TTCN ASP type constraint declaration ................................................................................................ 11

6.2.4 PDU type constraint declaration................................................................................................................. 11

6.2.4.1 ASN.1 PDU type constraint declaration ............................................................................................... 11

6.2.4.2 TTCN PDU type constraint declaration................................................................................................ 11

6.2.5 Chaining of constraints............................................................................................................................... 11

6.2.5.1 Static chaining ...................................................................................................................................... 11

6.2.5.2 Dynamic chaining................................................................................................................................. 11

6.2.6 Derived constraints..................................................................................................................................... 12

6.2.7 Parameterized constraints........................................................................................................................... 12

6.2.8 Value assignment ....................................................................................................................................... 12

6.2.8.1 Specific values...................................................................................................................................... 12

6.2.8.2 Matching values.................................................................................................................................... 12

6.3 Dynamic part.................................................................................................................................................... 12

6.3.1 Test cases ................................................................................................................................................... 12

6.3.2 Test steps.................................................................................................................................................... 12

6.3.3 Defaults ...................................................................................................................................................... 12

ETSI
---------------------- Page: 5 ----------------------
SIST EN 300 052-4 V1.2.4:2003
4 EN 300 052-4 V1.2.4 (1998-06)

7 ATS to TP map ......................................................................................................................................12

8 PCTR conformance................................................................................................................................13

9 PIXIT conformance................................................................................................................................13

10 ATS conformance ..................................................................................................................................13

Annex A (normative): Protocol Conformance Test Report (PCTR) proforma.............................14

A.1 Identification summary ..........................................................................................................................14

A.1.1 Protocol conformance test report..................................................................................................................... 14

A.1.2 IUT identification ............................................................................................................................................ 14

A.1.3 Testing environment ........................................................................................................................................ 14

A.1.4 Limits and reservations .................................................................................................................................... 15

A.1.5 Comments ........................................................................................................................................................ 15

A.2 IUT conformance status .........................................................................................................................15

A.3 Static conformance summary.................................................................................................................15

A.4 Dynamic conformance summary............................................................................................................15

A.5 Static conformance review report ..........................................................................................................16

A.6 Test campaign report..............................................................................................................................16

A.7 Observations...........................................................................................................................................16

Annex B (normative): Partial PIXIT proforma................................................................................17

B.1 Identification summary ..........................................................................................................................17

B.2 Abstract test suite summary ...................................................................................................................17

B.3 Test laboratory .......................................................................................................................................17

B.4 Client (of the test laboratory).................................................................................................................18

B.5 System Under Test (SUT)......................................................................................................................18

B.6 Protocol information ..............................................................................................................................19

B.6.1 Protocol identification...................................................................................................................................... 19

B.6.2 IUT information............................................................................................................................................... 19

B.6.2.1 Parameters.................................................................................................................................................. 19

B.6.2.2 Parameter values ........................................................................................................................................ 19

B.6.2.3 Procedural information............................................................................................................................... 19

Annex C (normative): Abstract Test Suite (ATS).............................................................................20

C.1 The TTCN Graphical form (TTCN.GR)................................................................................................20

C.1.1 ATS for basic access........................................................................................................................................ 20

C.1.2 ATS for primary rate access............................................................................................................................. 20

C.2 The TTCN Machine Processable form (TTCN.MP) .............................................................................20

C.2.1 ATS for basic access........................................................................................................................................ 20

C.2.2 ATS for primary rate access............................................................................................................................. 20

Annex D (informative): General structure of ATS .............................................................................21

Annex E (informative): Changes with respect to the previous ETS 300 052-4 ................................22

History..............................................................................................................................................................23

ETSI
---------------------- Page: 6 ----------------------
SIST EN 300 052-4 V1.2.4:2003
5 EN 300 052-4 V1.2.4 (1998-06)
Intellectual Property Rights

IPRs essential or potentially essential to the present document may have been declared to ETSI. The information

pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found

in SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect

of ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (http://www.etsi.fr/ipr or http://www.etsi.org/ipr).

Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee

can be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)

which are, or may be, or may become, essential to the present document.
Foreword

This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Signalling

Protocols and Switching (SPS).

The present document is part 4 of a multi-part standard covering the Digital Subscriber Signalling System No. one

(DSS1) protocol specification for the Integrated Services Digital Network (ISDN) Multiple Subscriber Number (MSN)

supplementary service, as described below:
Part 1: "Protocol specification";

Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification";

Part 3: "Test Suite Structure and Test Purposes (TSS&TP) specification for the user";

Part 4: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing

(PIXIT) proforma specification for the user";

Part 5: "Test Suite Structure and Test Purposes (TSS&TP) specification for the network";

Part 6: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)

proforma specification for the network".
National transposition dates
Date of adoption of this EN: 19 June 1998
Date of latest announcement of this EN (doa): 30 September 1998
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 March 1999
Date of withdrawal of any conflicting National Standard (dow): 31 March 1999
ETSI
---------------------- Page: 7 ----------------------
SIST EN 300 052-4 V1.2.4:2003
6 EN 300 052-4 V1.2.4 (1998-06)
1 Scope

This fourth part of EN 300 052 specifies the Abstract Test Suite (ATS) and partial Protocol Implementation eXtra

Information for Testing (PIXIT) proforma for the User side of the T reference point or coincident S and T reference

point (as defined in ITU-T Recommendation I.411 [10]) of implementations conforming to the stage three standard for

the Multiple Subscriber Number (MSN) supplementary service for the pan-European Integrated Services Digital

Network (ISDN) by means of the Digital Subscriber Signalling System No. one (DSS1) protocol, EN 300 052-1 [2].

EN 300 052-3 [4] specifies the Test Suite Structure and Test Purposes (TSS&TP) related to this ATS and partial PIXIT

proforma specification. Other parts specify the TSS&TP and the ATS and partial PIXIT proforma for the Network side

of the T reference point or coincident S and T reference point of implementations conforming to EN 300 052-1 [2].

2 Normative references
References may be made to:

a) specific versions of publications (identified by date of publication, edition number, version number, etc.), in

which case, subsequent revisions to the referenced document do not apply; or

b) all versions up to and including the identified version (identified by "up to and including" before the version

identity); or

c) all versions subsequent to and including the identified version (identified by "onwards" following the version

identity); or

d) publications without mention of a specific version, in which case the latest version applies.

A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same

number.

[1] EN 300 403-1: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System

No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 1:

Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".

[2] EN 300 052-1 (V1.2): "Integrated Services Digital Network (ISDN); Multiple Subscriber Number

(MSN) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;

Part 1: Protocol specification".

[3] EN 300 052-2 (V1.2): "Integrated Services Digital Network (ISDN); Multiple Subscriber Number

(MSN) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;

Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification".

[4] EN 300 052-3 (V1.2): "Integrated Services Digital Network (ISDN); Multiple Subscriber Number

(MSN) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;

Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user".

[5] ISO/IEC 9646-1: "Information technology - OSI Conformance Testing Methodology and

Framework; Part 1: General Concepts".

[6] ISO/IEC 9646-2: "Information technology - OSI Conformance Testing Methodology and

Framework; Part 2: Abstract Test Suite Specification".

[7] ISO/IEC 9646-3: "Information technology - OSI Conformance Testing Methodology and

Framework; Part 3: The Tree and Tabular Combined Notation".

[8] ISO/IEC 9646-4: "Information technology - OSI Conformance Testing Methodology and

Framework; Part 4: Test realization".

[9] ISO/IEC 9646-5: "Information technology - OSI Conformance Testing Methodology and

Framework; Part 5: Requirements on test laboratories and clients for the conformance assessment

process".
ETSI
---------------------- Page: 8 ----------------------
SIST EN 300 052-4 V1.2.4:2003
7 EN 300 052-4 V1.2.4 (1998-06)

[10] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces - Reference configurations".

3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following definitions apply:
Abstract Test Suite (ATS): See ISO/IEC 9646-1 [5].
Implementation Under Test (IUT): See ISO/IEC 9646-1 [5].
Lower Tester (LT): See ISO/IEC 9646-1 [5].
Point Of Control And Observation (PCO): See ISO/IEC 9646-1 [5].
Protocol Implementation Conformance Statement (PICS): See ISO/IEC 9646-1 [5].
PICS proforma: See ISO/IEC 9646-1 [5].

Protocol Implementation Extra Information For Testing (PIXIT): See ISO/IEC 9646-1 [5].

PIXIT proforma: See ISO/IEC 9646-1 [5].
System Under Test (SUT): See ISO/IEC 9646-1 [5].
Upper Tester (UT): See ISO/IEC 9646-1 [5].
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ASP Abstract Service Primitive
ATM Abstract Test Method
ATS Abstract Test Suite
BER Basic Encoding Rules
ExTS Executable Test Suite
IUT Implementation Under Test
LT Lower Tester
MOT Means Of Testing
MSN Multiple Subscriber Number
PCO Point of Control and Observation
PCTR Protocol Conformance Test Report
PDU Protocol Data Unit
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
SUT System Under Test
TCP Test Co-ordination Procedures
TP Test Purpose
TTCN Tree and Tabular Combined Notation
UT Upper Tester
ETSI
---------------------- Page: 9 ----------------------
SIST EN 300 052-4 V1.2.4:2003
8 EN 300 052-4 V1.2.4 (1998-06)
4 Abstract Test Method (ATM)

The remote test method is applied for the MSN user ATS. The Point of Control and Observation (PCO) resides at the

service access point between layers 2 and 3. This PCO is named "L" (for Lower). The L PCO is used to control and

observe the behaviour of the Implementation Under Test (IUT) and test case verdicts are assigned depending on the

behaviour observed at this PCO.
Tester SUT
LT IUT
PCO
Layer 2 Layer 2
Layer 1 Layer 1
Service provider
Figure 1: Remote test method

ISO/IEC 9646-2 [6] allows the informal expression of Test Co-ordination Procedures (TCP) between the System Under

Test (SUT) upper layer(s) and the Lower Tester (LT). In the ATS contained in annex C, TCP is achieved by use of a

second "informal" PCO, called "O" (for Operator). This PCO is used to specify control but not observation above the

IUT and consequently, events at this PCO are never used to generate test case verdicts. The use of this O PCO is

regarded as a preferred alternative to the use of the implicit send event, in that it allows the ATS to specify in a clear and

meaningful way what actions are required to be performed on the IUT.
5 Untestable test purposes
There are no untestable test purposes associated with this ATS.
6 ATS conventions

This clause is structured similarly to the structure of a TTCN ATS. However, the names of the subclauses are arranged

in a way more suitable to the present document.
6.1 Declarations part
6.1.1 Type definitions
6.1.1.1 Simple type definitions

Where appropriate, simple types have a length, a value list or a range restriction attached.

Simple types defined as being of some string type (e.g. BIT STRING, OCTET STRING), have a length restriction or a

value list attached.

Simple types, defined as being of INTEGER type, have a value list or a range restriction attached.

ETSI
---------------------- Page: 10 ----------------------
SIST EN 300 052-4 V1.2.4:2003
9 EN 300 052-4 V1.2.4 (1998-06)
6.1.1.2 Structured type definitions
6.1.1.2.1 TTCN structured type definitions
All structured type definitions are provided with a full name.

All elements in every structured type definition, defined as being of some string type (e.g. BIT STRING,

OCTET STRING), have a length restriction attached.

If an element in a structured type definition is defined as being of a referenced type, the (possible) restriction is defined

in that referenced type.

For information elements the identifier, which is unique for each element, has its type defined as a simple type where the

value list is restricted to the single value which is the identifier itself. This has the advantage that it allows a test system

derived from this ATS to easily identify information elements embedded in messages. An ATS where information

element identifiers are represented as unrestricted types can present difficulties for a derived test system in the case

where it needs to find one information element embedded in a number of others and the constraints for the other

elements have the any-or-omit value. In such a case the test system cannot easily find the beginning of each information

element.
6.1.1.2.2 ASN.1 structured type definitions
There are no ASN.1 structured type definitions in the ATS.
6.1.1.3 ASP type definitions
6.1.1.3.1 TTCN ASP type definitions

TTCN ASP type definitions only contain one PDU or no PDU at all. The relationship between an ASP type and a PDU

type is one-to-one. That is, there exists one ASP type definition for each PDU type definition (if that ASP type contains

a PDU).
All TTCN ASP type definitions are provided with a full identifier.

Some ASPs are not parameterized as shown in the example in table 1. Such ASPs are only used for requesting or

receiving service from the lower layer.
Table 1: TTCN ASP type definition DL_REL_IN
TTCN ASP Type Definition
ASP NAME : DL_REL_IN
(DL_RELEASE_INDICATION)
PCO Type : SAP
Comments :
Parameter Name | Parameter Type | Comments
Detailed Comments :

Table 2 shows an example of a parameterized ASP. All ASPs containing PDUs contain only that PDU and no other

parameters.
Table 2: TTCN ASP type definition DL_DATA_RQ
TTCN ASP Type Definition
ASP NAME : DL_DATA_RQ
(DL_DATA_Request)
PCO Type : SAP
Comments : CEId: = (SAPI,CES) mapped onto
DLCI: = (SAPI,TEI)
ASP is used to request the transmission of layer 3 PDUs
Parameter Name | Parameter Type | Comments
mun (MessageUnit) |PDU |
Detailed Comments :
ETSI
---------------------- Page: 11 ----------------------
SIST EN 300 052-4 V1.2.4:2003
10 EN 300 052-4 V1.2.4 (1998-06)
6.1.1.3.2 ASN.1 ASP type definitions
There are no ASN.1 ASP type definitions in the ATS.
6.1.1.4 PDU type definitions
6.1.1.4.1 TTCN PDU type definitions

The TTCN PDU type reflects the actual data being transferred or received. All PDUs are embedded in ASPs.

If a specific PDU type definition contains elements defined in terms of a pre-defined type, that element has a restriction

attached to it.
6.1.1.4.2 ASN.1 PDU type definitions
There are no ASN.1 PDU type definitions in the ATS.
6.1.2 Test suite constants
No test suite constants are used or defined in this ATS.
6.1.3 Test suite parameters

Each test suite parameter is defined in terms of a predefined type or a referenced type. A referenced type is used when it

is necessary to attach restrictions to these type definitions (it is not allowed to include restrictions directly in the test

suite parameter table). The referenced type can have a length or value restriction attached to it in its declaration table.

6.1.4 Variables
6.1.4.1 Test suite variables
No test suite variables are used or defined in this ATS.
6.1.4.2 Test case variables

Each test case variable is defined in terms of a predefined type or a referenced type. A referenced type is used when it is

necessary to attach restrictions to these type definition
...

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