Heavy Tails: The Effect of the Service Discipline -- The Möbius State-Level Abstract Functional Interface -- The ProC/BToolset for the Modelling and Analysis of Process Chains -- MRMSolve: Distribution Estimation of Large Markov Reward Models -- PhFit: A General Phase-Type Fitting Tool -- Traffic Modeling of IP Networks Using the Batch Markovian Arrival Process -- PEPA Nets: A Structured Performance Modelling Formalism -- Validation of GSPN and SWN Models through the PROD Tool -- Software Performance Models from System Scenarios in Use Case Maps -- Applying the UML Performance Profile: Graph Grammar-Based Derivation of LQN Models from UML Specifications -- A Passage-Time Preserving Equivalence for Semi-Markov Processes -- Symbolic Methods for the State Space Exploration of GSPN Models -- PRISM: Probabilistic Symbolic Model Checker -- MAMSolver: A Matrix Analytic Methods Tool -- The MOMBASA Software Environment - A Toolkit for Performance Evaluation of Multicast-Based Mobility Support -- GILK: A Dynamic Instrumentation Tool for the Linux Kernel -- Geist: A Web Traffic Generation Tool -- DrawNET++: Model Objects to Support Performance Analysis and Simulation of Systems -- A Visual Formalism for the Composition of Stochastic Petri Nets -- Symbolic Performance Prediction of Data-Dependent Parallel Programs -- Analysis of a Transaction System with Checkpointing, Failures, and Rollback -- Analyzing Voice-over-IP Subjective Quality as a Function of Network QoS: A Simulation-Based Methodology and Tool -- Hierarchical Workload Characterization for a Busy Web Server -- Enabling Network Caching of Dynamic Web Objects -- A Tool for Controlling Response Time in Real-Time Systems.