TTM4110 - Dependability and Performance with Discrete Event Simulation


Examination arrangement

Examination arrangement: Portfolio assessment
Grade: Letters

Evaluation form Weighting Duration Examination aids Grade deviation
Work 10/100
Work 20/100
Written examination 70/100 4 hours C

Course content

Basics: Dependability, performance and QoS measures; resources and utilization, failure and repair, system models, analytic modelling, discrete and continuous distributions, basics on stochastic processes, Poisson process, discrete-state - continuous-time Markov models and analysis. Simulation: process-oriented simulation, generation of random variables, problem analysis and model design, DEMOS/SIMULA primitives, output analysis. Performance and traffic: Erlang and Engset blocking models, M/M/1 and Erlang queuing models, Jackson networks. Dependability: reliability, availability and system time in simple redundant systems determined by Markov models, block schemes, fault-trees, structure functions, path and cut sets. Measurements: observation strategies, point and interval estimation, design of experiments.

Learning outcome

A. Knowledge:
1) To gain a basic understanding of the importance of non-functional requirements for service and system design.
2) To gain a basic understanding of the principles of dependability and performance evaluation and design of information and communication systems (ICT).
3) To gain a basic understanding of modeling, analysis and measurements for evaluation and dimensioning.
4) To gain a basic understanding of probability theory, statistics, and stochastic processes in modeling ICT system's behavior.
5) To gain a basic understanding of Markov modeling and solution of such models.
6) To gain a basic understanding of process-oriented modeling and simulations.
7) To gain a basic understanding of simulation and measurement methods.

B. Skills:
1) To be able to specify the performance and dependability requirements.
2) To be able to describe the system properties by using a Markov Model.
3) To be able to determine the system properties symbolically and numerically from a Markov model.
4) To be able to describe a simulation model, implementing a simulator and conduct a simulation experiment.
5) To be able to derive system properties from the measurements, analytically and from simulation results.

Learning methods and activities

Lectures and exercises in analytic evaluation techniques and in simulation. Optional self-tests.
A selection of exercises must be approved to qualify for the final exam.

Compulsory assignments

  • Exercises

Further on evaluation

Portfolio assessment is the basis for the grade in the course. The portfolio includes a simulation lab which counts 20%, a dependability lab which counts 10%, and a written final exam which counts 70%. The results for the parts are given in %-scores. The entire portfolio is assigned a letter grade.
The written exam is given in English only. The exam can be answered in English or in Norwegian.
If there is a re-sit examination, the examination form may be changed from written to oral.
If a student also after the re-sit exam has the final grade F/failed, the student must repeat the entire course. Works that count in the final grade must be repeated.

Specific conditions

Exam registration requires that class registration is approved in the same semester. Compulsory activities from previous semester may be approved by the department.

Course materials

Peder J. Emstad, Poul E. Heegaard, Bjarne E. Helvik and Laurent Paquereau, Dependability and performance in information and communication systems. Fundamentals, 276 pages, Inst. for telematikk, 2016.
Graham Birtwisle: DEMOS-A system for Discrete Event Modelling on Simula.

Credit reductions

Course code Reduction From To
SIE5015 7.5


Detailed timetable


Examination arrangement: Portfolio assessment

Term Statuskode Evaluation form Weighting Examination aids Date Time Room *
Autumn ORD Work 10/100
Autumn ORD Work 20/100
Autumn ORD Written examination 70/100 C 2018-12-21 09:00
  • * The location (room) for a written examination is published 3 days before examination date.
If more than one room is listed, you will find your room at Studentweb.