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# Fault treepoker 2010-07-31_release

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Are you looking to learn about logic and fault trees but hate the idea of having to read a grueling technical textbook about them?

Are you more inclined to spend time playing games with your friends and classmates than doing mundane reliability and risk analysis homework?

If your answer is yes to either of the above questions, then Fault Tree Poker may be the game for you!

Fault Tree Poker is a competitive card game designed to instill an understanding of how to work with fault trees within the context of engineering analysis and design. Much like standard 5-card draw and 7-card stud, Fault Tree Poker is all about playing a hand that trumps the other players. Each player is dealt five (or seven) cards - three (or four) of which are basic events and two (or three) of which are logic cards. Players use these cards to construct a system with the least chance of failure. But beware - sometimes a player may induce a failure in your system by playing an Incident card. In the end, the player whose cards produce the most reliable system wins.

Through play, players of Fault Tree Poker will be required to construct simple fault trees, calculate failure probabilities, understand the impact of incidents on system performance, and learn fault tree analysis terminology.

Fault Tree Poker is a great supplement to classroom education and professional training courses in any of the following subjects:

- Reliability engineering and analysis
- Quality management
- Operations research
- Engineering design
- Risk management
- Security and vulnerability analysis
- Safety engineering

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### Fault treepoker 2010-07-31_release

1. 1. A Purposeful Game Concept for Risk Analysis Education<br />1<br />31 July 2010<br />A MRG Concept<br />McGill Research Group<br />IST@PENNSTATE<br />
2. 2. Fault Tree Poker is a purposeful game that aims to educate players on the simple construction and evaluation of fault trees.<br />Through the course of game play, players will be required to setup a fault tree, calculate failure probabilities, understand the impact of incidents on system performance, and learn fault tree analysis terminology<br />2<br />
3. 3. Materials<br />36 BASIC EVENT cards (blue back)<br />28 LOGIC cards (green back)<br />24 logic gate cards (8 AND, 16 OR)<br />4 failure incident cards<br />12 CALCULATION cards (double sided)<br />4 AND gate calculations<br />4 OR gate calculations<br />4 mixed logic calculations<br />4 VOCABULARY cards (double-sided)<br />OPTIONAL: paper, pencil, calculator, play money<br />3<br />
4. 4. BASIC EVENT Cards<br />4<br />
5. 5. 36 BASIC EVENT Cards Total<br />(one of each)<br />5<br />
6. 6. LOGIC Cards – Logic Gates<br />6<br />
7. 7. LOGIC Cards - Incidents<br />7<br />
8. 8. 28 Cards Total<br />(Sixteen OR, eight AND and four incident cards)<br />8<br />
9. 9. Vocabulary Cards<br />9<br />
10. 10. Five Card Draw<br />10<br />
11. 11. Initial Setup<br />Between 2 and 4 players can participate in a match<br />Each player is dealt three (3) BASIC EVENT cards and two (2) LOGIC cards<br />Each player is also handed a set of CALCULATION cards and a VOCABULARY card<br />Players must use ALL five of their cards to construct a system with the smallest probability of failure (highest reliability)<br />11<br />
12. 12. Rules of Play<br />Players have one opportunity to discard and replace up to three cards; options include:<br />Three BASIC EVENT cards<br />Two BASIC EVENT cards + one LOGIC card<br />One BASIC EVENT card + two LOGIC cards<br />Players may discard fewer than three or none at all<br />12<br />
13. 13. Rules of Play (2)<br />If one or more of the player’s LOGIC cards is an incident, the player must associate a basic event with the incident<br />Incidents induce failures (Pf = 1) across all players if:<br />They have the same label (e.g., “A”)<br />The Pf is less than or equal to the one on the incident card (e.g., B2 would induce a failure in B5, not in C5)<br />13<br />
14. 14. Rules of Play (3)<br />Player’s who play incident cards must use their remaining cards to construct a system<br />If one incident card is played, the remaining two basic events are connected by the remaining logic – the system is then comprised of three cards. Probability of failure is computed using simple calculations.<br />If two incident cards are played, the remaining one basic event makes up the system. The probability of failure is read straight off the remaining cards.<br />14<br />
15. 15. Rules of Play (4)<br />It is up to the player to calculate the corresponding probability of failure for their cards<br />It is not enough to rely on patterns – the winner must state that their probability is X, which exceeds his or her opponent’s probability of Y<br />Opponents may challenge the calculation – a credible challenge may cause the player to lose regardless of what the cards say<br />15<br />
16. 16. Winning Condition<br />The winner is the player with the lowest probability of failure after all cards are played<br />OPTIONAL: If more three or more players play, points may be awarded based on rank, e.g., the highest gets 2 points, lowest zero, middle one point<br />16<br />
17. 17. Winning Condition (2)<br />If two or more players have the same low probability of failure, the one with the fewest played cards wins (3 versus 5)<br />If these players also have the same number of played cards, the player with the lowest maximum event probability wins<br />OPTIONAL: Winner can also be settled by drawing a basic event card and casting the winner as the one who either:<br />Drew the letter closest to A<br />Drew the event with the lowest probability of failure<br />17<br />
18. 18. Advanced Version (7 cards)<br />Game play is the same, the difference being that each player is dealt 4 basic event cards and three logic cards<br />The most complicated fault tree may assume one of several more forms<br />String of gates (A AND (B AND (C AND D)))<br />Top level gates ((A AND B) AND (C AND D))<br />More calculations, more options<br />No crutch cards provided to help with calcs<br />18<br />
19. 19. Real Poker Analogs<br />5 Card Draw – same principle<br />7 Card Stud – use the best five combination or best seven<br />May show two basic events and one logic gate<br />Or some other scheme<br />Texas Holdem<br />Each player is dealt one basic event and one logic gate<br />Five cards are shown at the center for all to use (2 logic gates, 3 basic events)<br />Best hand of five using private cards and three community cards wins<br />Many other versions are possible using the same fault tree game mechanism<br />19<br />
20. 20. Play Gambling<br />Using PLAY MONEY (i.e., Monopoly):<br />Betting as in 5 card draw – bet prior to draw, then again after<br />Betting as in 7 card stud – bet as accumulated<br />Consider capping, raising, calling, etc.<br />Also, can use SUCCESS CHIPS, that is, chips awarded for each win or paid for with \$\$\$<br />20<br />
21. 21. Who will manufacture Fault Tree Poker?<br />Copies of the game can be purchased at: http://www.thegamecrafter.com/games/fault-tree-poker (http://bit.ly/9zelqP) <br />The cost per set is \$20. This consists of 80 game cards in a box. Proceeds from the sale of Fault Tree Poker will be used to support future development and prototyping of games for risk analysis education.<br />21<br />
22. 22. For more information…<br />Will McGill, PhD, PE, CRE<br />IST@PENNSTATE<br />102L IST Building, University Park, PA 16801<br />(814) 867-0270 or (814) 308-3854<br />wmcgill@ist.psu.edu<br />22<br />