A comprehensive software environment for developing standardized conformance test suites

doi:10.1016/0169-7552(89)90089-5

Computer Networks and ISDN Systems

Volume 18, Issue 1, 24 November 1989, Pages 19-29

Computer Networks an...

https://doi.org/10.1016/0169-7552(89)90089-5 Get rights and content

Abstract

In this paper, we describe the design of an integrated software environment under development by the University of Ottawa and Bell-Northern Research in the TOCS (Testing Open Communications Systems) Project for specifying, designing, validating and maintaining abstract conformance test suites in the standard test notation TTCN. We illustrate the use of this facility by summarizing our experience with the development and maintenance of a standardized, abstract conformance test suite for X.25 DTEs.

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There are more references available in the full text version of this article.

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Interoperability tests on OSI products in the framework of the OSIRIDE-Intertest initiative
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Products implementing the Open Systems Interconnection (OSI) Standards and CCITT Recommendations (hence forth referred to as OSI Products) are now emerging on the market. To meet user requirements relying on products that interwork effectively, the standards community is addressing conformance testing techniques. However, due to technical and economic reasons, conformance testing alone does not yield a full guarantee of proper interworking. This paper reports on the interworking of the first five lower layers of OSI and on the X.400 (Inthe paper, the terms X.400 and Message Handling System (MHS) are used synonymously) interworking investigated in the framework of an Italian initiative named OSIRIDE-Interest (OSIRIDE stands for “OSI su Rete Italiana Dati Eterogenea” or “OSI on the Italian heterogeneous data networks”). The paper focuses, in particular, on the methodology and architecture which were designed and developed to verify the interworking (not conformance) of OSI Products (not prototypes) provided by six computer manufacturers. Interworking was examined in an environment made up of many computers (Pilot Centers) attached to the Italian X.25 public data network (ITAPAC) while hundreds of users were running on them and not in vitro, i.e., not on computers dedicated to this specific task. The results obtained from the first two phases of our investigation are highlighted.
TTCN: the international notation for specifying tests of communications systems
1992, Computer Networks and ISDN Systems
Over a period of about eight years the International Organization for Standardization (ISO) developed and standardized a testing methodology and framework for testing protocol implementations for conformance to OSI standards. As part of that work, a standardized test notation, the Tree and Tabular Combined Notation (TTCN), was developed and used for precise specification of abstract test suites. This paper explains and illustrates, using X.25 examples, the basic concepts of TTCN in the context of the standardized OSI conformance testing methodology and framework (ISO IS 9646). A brief description of the most recent work on enhancements to TTCN and examples of widely available TTCN tools are also presented.
A multi-event-one-transition plus incremental processing protocol verification method
1996, Journal of Information Science and Engineering
Protocol testing: Review of methods and relevance for software testing
1994, Proceedings of the 1994 ACM SIGSOFT International Symposium on Software Testing and Analysis, ISSTA 1994
ISDN Conformance Testing
1991, Proceedings of the IEEE

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A comprehensive software environment for developing standardized conformance test suites

Abstract

Comput. Networks ISDN Systems

Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for Terminals Operating in the Packet Mode on Public Data Networks

An Integrated Test Center for SL-10 Packet Networks

Performance and Conformance Test Tools for DPN Packet Networks

Information Processing Systems — A FDT Based on Temporal Ordering of Observational Behavior

ISO TC97/SC21 IS 8807