Dr. Michael Ebner
Position:
Research Assistant
Phone:
Office:
Email:
Homepage
www.consileon.de )
Research Projects
Publications
2006
Daidalos - A Scenario based approach from Scenarios towards Integration ,
Michael Ebner , Constantin Werner , Jürgen Jähnert, Yongzheng Liang, Joint MAGNET Workshop, Myconos, Greece,
June 2006.
Read abstract
In the IST Daidalos Project a blueprint of the next generation Beyond 3G Systems is designed, developed and demonstrated integrating mobile and broadcast communications. Daidalos delivers pervasive end-to-end services across heterogeneous technologies. This require the development of key technologies as demonstrated by the Daidalos five key concepts which are MARQS (Mobility Management, AAA, Resource Management, QoS and Security), VID (Virtual Identity), USP (Ubiquitous and Seamless Pervasiveness), SIB (Seamless Integration of Broadcast and Federation
The Daidalos results ? architectural framework, conceptual solutions, software components and sub-systems, and the overall demonstrators based on two scenarios ? will contribute to the next generation of networks.
Having this goal, an appropriate methodology on how to guide the overall development process is required, which relies on formal methods and tools which closely follows a scenario based overall design defining a ?red line? along the overall work of any activity from the formal definition of a scenario down to the final integration.
2004
TTCN-3 Test Case Generation from Message Sequence Charts ,
Michael Ebner , ISSRE04 Workshop on Integrated-reliability with Telecommunications and UML Languages (ISSRE04:WITUL), IRISA, Rennes, France, 2. November 2004,
November 2004.
Read abstract
Scenario-based testing, manual as automatic, is applicable for black-box and specific white-box testing for communication protocols and distributed systems. UML models provide scenario descriptions by sequence diagrams respectively MSCs. Thus, the combination of TTCN-3, as test description language, and UML by MSC to specify and automatically generate test cases has to be considered.
The work in this paper describes a translation of MSC elements
to TTCN-3 statements in order to use MSC to define test cases and test case execution order in TTCN-3.
issre_witul_2004_submission_ebner.pdf [288.4 kB]
UML-based Test Specification for Communication Systems - A Methodology for the use of MSC and IDL in Testing - ,
Michael Ebner , Georg-August-Universität Göttingen, Germany, March 2004, Electronic Dissertation of University of Göttingen,
March 2004.
Read abstract
Nowadays, the complexity of modern telecommunication systems has increased significantly and the requirement for thorough and systematic testing is undisputed. The TTCN-3 an universal and standardised language for the specification and implementation of tests for communication systems. Many systems and in particular object-oriented systems are described using the UML. Therefore, UML models are an important source for test development and in particular for manual test purpose specification and automatic test generation. Thus, usage of UML from a test perspective is considered.
UML models provide interface information by class diagrams and
description of scenarios by sequence diagrams respectively MSC. Most
UML tools permit conversion of class diagrams into IDL which widens
applicability. The combination of TTCN-3 and UML by MSC
and IDL is a new approach. Thus, new mappings for MSC and IDL
to TTCN-3 have been worked out. Additionally, to widen usability and
applicability, the deficiency of object-orientation in TTCN-3 is
inspected and a proposal for an object-oriented revision is given.
dissertation_ebner.pdf [1608.8 kB]
2003
The TTCN-3 module and template concepts revisited ,
Michael Ebner , M. Schmitt, Technische Berichte des Instituts für Informatik an der Georg-August-Universität Göttingen,
Institut für Informatik, Georg-August-Universität Göttingen, Germany, ISSN 1611-1044, IFI-TB-2003-02, May 2003.
2002
Definition and Utilisation of OMG IDL to TTCN-3 Mappings ,
Michael Ebner , Aihong Yin, Mang Li, TESTING OF COMMUNICATING SYSTEMS XIV --- Application to Internet Technologies and Services, 443-458,
Kluwer Academic Publishers, 0-7923-7695-1, IFIP, March 2002.
Read abstract
An established middleware technology for Internet-based distributed systems is CORBA, where interfaces are described with IDL. TTCN is a standardised test description language widely used in the telecommunications area. The current version of TTCN, version 3 (TTCN-3), is among others designed to test CORBA-based systems.
This paper presents a definition of the OMG IDL to TTCN-3 mappings, which facilitate the testing of CORBA-based systems. The application of the mappings is shown by an example test for the CORBA Portable Object Adaptor (POA).
testcom2002_ebner-CRC.pdf [108.1 kB]
