• Journal of Computing Science and Engineering
• /
• v.4 no.4
• /
• pp.313-349
• /
• 2010

In this paper, we study the data interoperability problem of web services in terms of XML schema compatibility. When Web Service A sends XML messages to Web Service B, A is interoperable with B if B can accept all messages from A. That is, the XML schema R for B to receive XML instances must be compatible with the XML schema S for A to send XML instances, Le., A is a subschema of B. We propose a formal model called Schema Automaton (SA) to model W3C XML Schema (XSD) and develop several algorithms to perform different XML schema computations. The computations include schema minimization, schema equivalence testing, subschema testing, and subschema extraction. We have conducted experiments on an e-commerce standard XSD called xCBL to demonstrate the practicality of our algorithms. One experiment has refuted the claim that the xCBL 3.5 XSD is backward compatible with the xCBL 3.0 XSD. Another experiment has shown that the xCBL XSDs can be effectively trimmed into small subschemas for specific applications, which has significantly reduced the schema processing time.

• Journal of Information Technology Services
• /
• v.6 no.2
• /
• pp.153-160
• /
• 2007

Middleware for mobile devices, embedded middleware, is used for mobile devices, cellular phone and DMB related services. It is essential for middleware providers to provide high quality middleware in conformity with its standard and interoperability on hardware platforms. The standard conformance and interoperability of embedded middleware are the key factors to make service providers succeed in their business. The quality of embedded middleware could be secured when Tests for the standard conformance and interoperability of embedded middleware are performed with well established test framework. In this paper, we describe middleware testing methodology of standard conformance, interoperability and middleware test framework for mobile devices.

• Journal of KIISE:Information Networking
• /
• v.28 no.2
• /
• pp.277-287
• /
• 2001

Test derivation methods suitable for interoperability testing of communication protocols were proposed in [1,2, 3] and applied to the TCP and the ATM protocols, The test cases that were generated by them deal with only the control part of the protocols. However, in real protocol testing, the test cases must manage the data part as well. For complete testing, in principle we must test all possible values of data part although it is impractical to do so. In this paper, we present a method generating the interoperability test suite for both the data part and the control part of protocols with the example of Tep connection establishment. In this process, we make use of experimental design techniques from industrial engineering to minimize the size of test suite while keeping testing capability. Experimental design techniques have been used for protocol confom1ance testing but not for intcruperability testing so far. We generate the test suite for data part by this method and show a possibility that we can test interoperability of protocols with the minimum number of test cases while maintaining the testing power.

• 한국공간정보시스템학회:학술대회논문집
• /
• 2005.05a
• /
• pp.125-139
• /
• 2005

It is assumed that GIS conformance certification can be important for improving geospatial interoperability. This study aims to establish the framework, methodology and model for GIS conformance testing and certification Also, as an implementation example, a pilot conformance testing for GIS metadata standard are examined.

• Journal of the Korea Society for Simulation
• /
• v.27 no.1
• /
• pp.15-24
• /
• 2018

High Level Architecture(HLA) for modeling and simulation is an international technical standard to achieve simulation interoperability and reusability. Building federation through the interworking of federates is being used in various fields and is being used in KR(Key Resolve), UFG(Ulchi-Freedom Guardian) as a representative in domestic military. Currently, United States Department of Defense emphasizes the HLA compliance test, which confirms the compliance of Federate by using HLA. However, due to the limitations of testing tools, an HLA compliance test of DoD is not able to perform some of the functional tests on HLA/RTI services such as federation storage/recovery services and also exclude inspection of exchange data between federates. To solve these problems, this paper proposes an HLA compliance testing system of ROK suitable for domestic situations. This will enable effective HLA compliance testing and improve interoperability between federates.

• ETRI Journal
• /
• v.40 no.1
• /
• pp.72-88
• /
• 2018

In the fifth generation (5G) era, the radio internet protocol capacity is expected to reach 20 Gb/s per sector, and ultralarge content traffic will travel across a faster wireless/wireline access network and packet core network. Moreover, the massive and mission-critical Internet of Things is the main differentiator of 5G services. These types of real-time and large-bandwidth-consuming services require a radio latency of less than 1 ms and an end-to-end latency of less than a few milliseconds. By distributing 5G core nodes closer to cell sites, the backhaul traffic volume and latency can be significantly reduced by having mobile devices download content immediately from a closer content server. In this paper, we propose a novel solution based on software-defined network and network function virtualization technologies in order to achieve agile management of 5G core network functionalities with a proof-of-concept implementation targeted for the PyeongChang Winter Olympics and describe the results of interoperability testing experiences between two core networks.

• Journal of IKEEE
• /
• v.14 no.3
• /
• pp.210-218
• /
• 2010

TTCN-3(Testing & Test Control Notation Version 3) is the international standard testing language defined by ETSI in 2001. TTCN-3 is generally used for protocol conformance test, but it is also possible to be applied to the platform and API tests based on CORBA. Moreover, it can be also applied to the various testings such as interworking testing, repetition testing, platform testing, etc. IEC 61850 is the protocol proposed for SAS(Substation Automation System) of SCADA(Supervisory Control And Data Acquisition) system. In this paper, a IEC 61850 interoperability Tester based TTCN-3 is developed under the Window environment. IEC 61850 Server Simulator of Linux operating system is used as SUT(System Under Test). Conformance testing items in this paper are the Positive test case_Srv5 of "Server, Logical device, Logical node, and data model" in the testing group of "IEC 61850 - Part10" document.

• Proceedings of the KSRS Conference
• /
• 2005.10a
• /
• pp.329-332
• /
• 2005

In order to provide the reliable service and contents to telematics service user, any service server must be tested and verified before launching its service in sufficient. In this paper, we proposed a test framework for telematics server. The proposed framework includes conformance test of server, interoperability test between telematics service server and telematics terminal. The framework proposed the concept and test model for two categories of testing.

• 한국IT서비스학회:학술대회논문집
• /
• 2003.11a
• /
• pp.822-840
• /
• 2003

The Basic Profile has helped interoperability. Sample Application experience is already reflected in a most major platforms. Usage Scenarios valuable in identifying where BP restrictions apply. Testing is critical.

• Journal of the military operations research society of Korea
• /
• v.24 no.2
• /
• pp.57-74
• /
• 1998

This paper is aimed to propose an testing and evaluation strategy and plan in Military Information Systems, especially focusing on development an“New-generation Wargame Model”. Through this research, we concluded that the effective and efficient testing/evaluation strategy/plan can aid the productivity, maintainability, availability, etc., of the Militray Information Systems. Highlights of the proposed testing and evaluation strategy and plan for Military Information Systems are as follows. First, in the unit and module integration testing phase, hybrid of black-box and white-box testing techniques are available for Military Information Systems and progressive approach for module integration phase should be considered because of the complexity. Second, in the system testing phase, integrated module should be tested with respect to the function and performance that should be satisfied with the user requirements, specifications, risk analysis, etc., Third, in the acceptance testing phase, reliability, interoperability, maintainability, availability, integrity, etc., must be considered in the actual or mini-operational environments for testing efficiently and effectively.