1. Dependable systems
   • Introduction to dependable systems
     • Dependability attributes
     • Dependable applications
     • Impairments to dependability 
   • Fault tolerant techniques
     • Basic concepts and techniques
     • Hardware redundancy
     • Time redundancy
     • Software redundancy
     • Information redundancy
     • Fault tolerance in distributed systems
2. Capacity Planning
   • Workload characterization
   • Dependability and Performance evaluation techniques
   • Benchmarks
   • Web and Intranet Performance Issues
3. Dependability modelling and evaluation methodologies
   • Dependability modelling; definitions and hypothesis
   • Combinatorial methods
   • Markovian processes
   • Examples of reliability, availability and safety evaluation
4. Performance evaluation techniques 
   • Basic performance concepts
   • System-level performance model
   • Component-level performance level
5. Web performance modelling and evaluation
   • Peculiarity of Web traffic
     • Power law
     • Burstly workload
   • Client side models
     • No cache proxy server case
     • Cache proxy server case
   • Server side models
     • Single Web server
     • Mirrored Web server

 Textbooks:

 - D. A. Menascé, V. A. F. Almeida: Capacity Planning for Web Performance: metrics, models and methods. Prentice Hall, PTR

 - Mor Harchol Balter: Performance Modeling and Design of Computer Systems. Cambridge University Press

- G. Buonanno, N. Scarabattolo: Temi d’esame di Impianti di elaborazione, Progetto Leonardo