ETSI GS CIM 027 V2.1.1 (2025-07)

Context Information Management (CIM); NGSI-LD Testing Framework: Test Purposes Description Language (TPDL)

RGS/CIM-0027v211

General Information

• Status: Not Published
• Technical Committee: CIM - cross-cutting Context Information Management
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Due Date: 16-Jun-2025
• Completion Date: 28-Jul-2025

Standards Content (Sample)

GROUP SPECIFICATION
Context Information Management (CIM);
NGSI-LD Testing Framework:
Test Purposes Description Language (TPDL)
Disclaimer
The present document has been produced and approved by the cross-cutting Context Information Management (CIM) ETSI
Industry Specification Group (ISG) and represents the views of those members who participated in this ISG.
It does not necessarily represent the views of the entire ETSI membership.

2 ETSI GS CIM 027 V2.1.1 (2025-07)

Reference
RGS/CIM-0027v211
Keywords
API, IoT, NGSI-LD, testing
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3 ETSI GS CIM 027 V2.1.1 (2025-07)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
Executive summary . 4
Introduction . 4
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definition of terms, symbols and abbreviations . 6
3.1 Terms . 6
3.2 Symbols . 7
3.3 Abbreviations . 7
4 Prerequisites and Test Configurations . 7
4.1 Test Configurations . 7
5 Test Purposes (TP) . 9
5.1 Introduction . 9
5.2 TP definition conventions . 10
5.3 TP Identifier naming conventions . 11
5.4 Rules for the behaviour description . 12
Annex A (informative): Change history . 15
History . 16

ETSI
4 ETSI GS CIM 027 V2.1.1 (2025-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be
found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI IPR online database.
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its
Members. 3GPP™, LTE™ and 5G™ logo are trademarks of ETSI registered for the benefit of its Members and of the
3GPP Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of ®
the oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Group Specification (GS) has been produced by ETSI Industry Specification Group (ISG) cross-cutting Context
Information Management (CIM).
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Executive summary
The present document defines a template for the Test Purposes (TP) description.
Introduction
The ISG CIM group has defined an API for exchange of information contextualized in time, space and relation to other
information, using a property graph model, with the intent that the associated protocol (called NGSI-LD) becomes the
"glue" between all kinds of applications and databases associated with services for Smart Cities, Smart Agriculture,
Smart Manufacturing, etc.
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5 ETSI GS CIM 027 V2.1.1 (2025-07)
To be successful, the NGSI-LD API specification needs to be well understood and well implemented. The community
of users will not be solely highly professional engineers employed by big companies but will include many small teams
and SMEs and even hobbyists. Therefore, it is essential that the developers have access to not only the standard but also
a test specification and a testing environment to check that their work is (and remains) conformant to the ETSI
NGSI-LD specification.
The developers will usually write integration tests to validate the behaviour of their NGSI-LD implementation, but it is
important to assert compliance to the specification based on a test suite agreed by the group creating the API
specification, i.e. ETSI ISG CIM. Therefore, it is very important to create a set of ETSI-approved test cases.
What is more, the existence of such a test suite will likely help to increase the adoption of the NGSI-LD specification
by giving developers a ready to use and complete set of sample requests.
The present document defines a template for the Test Purposes (TP) description.

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1 Scope
The present document defines a template for the Test Purposes (TP) description.
The Testing Framework documents specify a framework and methodology for the development of the test strategies,
test systems and resulting test specifications. The present document identifies the implementation under test (scope of
the testing), the format for the test specification, the test architecture, the points of control and observation, the naming
conventions (e.g. for test case ID and test case grouping ID), etc.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI GS CIM 009 (V1.5.1): "Context Information Management (CIM); NGSI-LD API".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents may be useful in implementing an ETSI deliverable or add to the reader's
understanding, but are not required for conformance to the present document.
Not applicable.
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
NOTE: The letters "NGSI-LD" were added to most terms to confirm that they are distinct from other terms of
similar/same name in use in other organizations, however, in the present document the letters "NGSI-LD"
are generally omitted for brevity.
NGSI-LD Central Broker: NGSI-LD Context Broker that only uses a local storage when serving NGSI-LD requests,
without involving any external Context Sources
NGSI-LD Context Broker: architectural component that implements all the NGSI-LD interfaces
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7 ETSI GS CIM 027 V2.1.1 (2025-07)
NGSI-LD Context Consumer: agent that uses the query and subscription functionality of NGSI-LD to retrieve context
information
NGSI-LD Context Producer: agent that uses the NGSI-LD context provision and/or registration functionality to
provide or announce the availability of its context information to an NGSI-LD Context Broker
NGSI-LD Context Registry: software functional element where Context Sources register the information that they can
provide
NOTE: It is used by Distribution Brokers and Federation Brokers to find the appropriate Context Sources which
can provide the information required for serving an NGSI-LD request.
NGSI-LD Context Source: source of context information which implements the NGSI-LD consumption and
subscription (and possibly provision) interfaces defined by the present document
NOTE: It is usually registered with an NGSI-LD Registry so that it can announce what kind of information it can
provide, when requested, to Context Consumers and Brokers.
NGSI-LD Distribution Broker: NGSI-LD Context Broker that uses both local context information and registration
information from an NGSI-LD Context Registry, to access matching context information from a set of distributed
Context Sources
NGSI-LD Federation Broker: Distribution Broker that federates information from multiple underlying NGSI-LD
Context Brokers and across domains
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, t
...