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S-72.2530 Acceptability and Quality of Service. Opening session 6th November Vesa Riihimäki. Agenda. Say hello Course arrangements Introduction on acceptability and communication services Scheduling article presentations Launching group assignments. Say Hello. Advanced course by HFT
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S-72.2530 Acceptability and Quality of Service Opening session 6th November Vesa Riihimäki
Agenda • Say hello • Course arrangements • Introduction on acceptability and communication services • Scheduling article presentations • Launching group assignments
Say Hello • Advanced course by HFT • Acceptability • Quality of Service • Gallup • Major in HFT • Postgraduate students • HFT in practise • Example: Choosing transportation method
Course objectives • Understand • Acceptability • Quality of Service • Satisfaction • Standards on Quality • Apply acceptability model in service bencmark • Analyze quality of service • Produce written and verbal QoS arguments • Your objectives?
Course Tasks and Grading • Article presentation • Peer review (weights 30% for course grade) • Following instructions (20%) • Group assignment • Presentation (20%, peer review) • Written report (20%) • Process (10%) • Course Portfolio • Template on course website • Return by 17th December (vesa.riihimaki@tkk.fi or course mailbox at E-wing 2nd floor) • May rise your grade
Course Timetable • 6th November, Opening session • 13th November, Presentations: Concepts • 18th November, Tutorial on concepts • 20th November, Presentations: Benefits • 25th November, Tutorial on standards • 27th November, Presentations: Human + Measurements • 2nd December, Tutorial on technical QoS • 4th December, Presentations: Measurements + Management • 11th December, Group assignment presentations • (17th December, Exam to raise your grade)
Products or Services • Telephone • Broadband • Gmail • Messenger • Online bank
Social Acceptability Acceptability Practical Acceptability Usefulness Utility etc Learnability Reliability Cost Efficient Usability Compatibility Memorability Errors Satisfaction [Nielsen, Jakob. Usability engineering, Academic Press, Boston, 1993]
Concepts are not mathematical definitions • Acceptability • Negative, or • Positive • QoS • Technical, or • User viewpoint • QoE
Volume, QoS and Value • Case A: Volume rises value and thus QoS • Sarnoff: N • Metcalfe: N2 [Metcalfe, B.: Metcalfe's Law: A network becomes more valuable as it reaches more users, InfoWorld, 1995, 17, 53] • Reed 2N [Reed, D.P.; The Law of the Pack Harvard Business Review, 2001, 79, 22-23] • N logN [Odlyzko, A. & Tilly, B.: A refutation of Metcalfe's Law and a better estimate for the value of networks and network interconnections] • Case B: Volume rises value but not QoS • Switching costs • Case C: Volume rises QoS and thus value • Two-sided markets [Rochet, J. & Tirole, J.: Platform competition in two-sded markets, Journal of the European Economic Association, 2003, 1, 990-1029]
1 Analysis Context Product or service Consumers business or B2B Research methods Philosophical Literature review Case study Statistical methods Concept maps 2 Synthesis Main points Relations to our course topic 3 Evaluation Scientific significance Practical importance Critique Reading Articles
Article Presentation • Based on scientific articles and analysis • At least one reference outside course material • Focus on results and implications • Criticize • Send slides etc to teacher a day before presentation, vesa.riihimaki@tkk.fi • Length: 30 minutes, max 15 slides
Finding Articles • http://lib.tkk.fi/en/ • http://www.nelliportaali.fi/ • http://site.ebrary.com/lib/otaniemi • http://www.google.com/
Group Assignment • Choose 2 partially substitutive services • Evaluate and benchmark acceptability and QoS for the services • Steering session with teacher • Analyze and develop quality and quality measurements for one of the services • Presentation 11th December (30 minutes) • Send slides etc to teacher a day before presentation, vesa.riihimaki@tkk.fi • Written report (3-10 pages) • Return by 17th December (vesa.riihimaki@tkk.fi or course mailbox at E-wing 2nd floor)
Assignment Topics and Groups • Last year topics • LinkedIn & Facebook • Facebook & Irc Galleria • Map services (TomTom, GoogleMaps, Oikotie) • Emergency calls and emergency SMS • Groups of 4 to 5 people