Titlebook: System Analysis and Modeling; 4th International SD Daniel Amyot,Alan W. Williams Conference proceedings 2005 Springer-Verlag Berlin Heidelb

Constant

Data Encoding for SDL in ITU-T Rec. Z.104s needs to be encoded and decoded in the same way by each part if the information encoded by one part is to be seen as the same value by another part. The ITU-T Recommendation Z.104 ‘Encoding of SDL Data’ that is currently being refined for approval, allows the data encoding to be specified for comm

牵索

SDL in a Changing Worldhat world has undergone deeper and more frequent paradigm shifts than hitherto. This paper briefly summarises the emergence of grid computing, pervasive computing and mobile and ad-hoc communications. It explores developments in modelling, as reflected by the emergence of SDL-2000 as an ITU standard

Ethics

Early Validation of Deployment and Scheduling Constraints for MSC Specificationsidated and used as input for the design stage, and subsequent phases. Deployment constraints are generally taken into account at the implementation stage only. These constraints may conflict and invalidate some of the functional/behavioral requirements already validated at a high level of abstractio

Offstage

Scenario Synthesis from Imprecise Requirementsd are a result of subtle component interactions that are implied by the requirements, but not explicitly described by them. A further difficulty is caused by the imprecise nature of industrial requirements specifications. This makes it difficult to construct valid models of the possible compositions

残暴

Applying Reduction Techniques to Software Functional Requirement Specifications-prone and difficult to understand. Therefore, the development of techniques and tools to support requirement specification development, understanding, testing, maintenance and reuse becomes an important issue. This paper extends the well-known technique of program slicing to . based on the Use Case

横条

Proving a Soundness Property for the Joint Design of ASN.1 and the Basic Encoding Rulesotocol implementors. In the last few years, the press has reported several alleged vulnerabilities of ASN.1 and the Basic Encoding Rules (BER) related to network protocols like SNMP and, more recently, OpenSSL. In reality it has been shown that the security issues (theoretically denial of service at

jocular

Finding Covert Channels in Protocols with Message Sequence Charts: The Case of RMTP2 recalls these results, and proposes a case study illustrating how scenarios can be used to detect illegal information flows from a scenario description of a protocol. Once a covert information flow is discovered, its bandwidth is computed using the (., +) algebra.

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JUST

ICT Convergence: Modeling Issuesnvergent ICT systems. Telecom engineers and software engineers traditionally use different approaches when developing services and applications. A main question is whether or not the differences are justified and should be maintained in the context of convergence? In this paper, we seek to answer th