Botjan Vlaovič

Learn More
This paper presents the Spin trail to a Message Sequence Chart conversion tool (st2msc) that was developed as an auxiliary tool to a well-known Spin model checker. If the model of the system does not satisfy the specified requirement, Spin outputs the trail that demonstrates the exact execution path of the system, leading to wrong behaviour. The Spin trail(More)
This paper describes methods used to place telephone calls over packet-based networks with emphasis on Internet point-to-point communication. Two approaches will be described-H.323 and SIP (session initiation protocol). The first is an ITU standard and is already widely deployed by commercial vendors. The second, SIP, was developed by IETF activists and(More)
In this paper SIP Info Service (SIPIS) is presented. The main purpose of this system is to deliver prerecorded audio data (traffic news, weather reports, etc.) over the Internet to the receiver using RTP (Real-time Transfer Protocol) with the UDP/IP (User Datagram Protocol/Internet Protocol) as its transport protocol. For signaling purposes SIP (Session(More)
This paper presents our research in the domain of mechanical extraction of a model from an SDL (Specification and Description Language) specification of a system. We use formal verification tool Spin (Simple Promela Interpreter) and Promela (Process Meta-Language) language for the description of the model. With the model checking technique the model’s(More)
  • 1