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MSc Reading Group. The first reading for the MSc reading group will be: “The Anatomy of a Large-Scale Hypertextual Web Search Engine”, S. Brin & L. Page The is the original paper describing the Google search engine and is available at: www.comp.dit.ie/bmacnamee/materials/psci/google.pdf
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MSc Reading Group • The first reading for the MSc reading group will be: • “The Anatomy of a Large-Scale Hypertextual Web Search Engine”, S. Brin & L. Page • The is the original paper describing the Google search engine and is available at: • www.comp.dit.ie/bmacnamee/materials/psci/google.pdf • There is a video here of a lecture delivered by Sergey Brin more recently which might also be interesting
Review Week • The plan for review week: • No new material • Catch up on journal entries • We can redo any of the exercises if you like • Revise any topics that you feel need revision
Problem Solving, Communication & Innovation:Edward de Bono’s Six Thinking Hats
Contents • In today’s lecture we are going to look at de Bono’s Six Thinking Hats technique: • Edward de Bono again • Origins of the Six Thinking Hats • The hats! • How to use the Six Thinking Hats • Novel uses of the Six Thinking Hats system
Edward de Bono • Born in Malta in 1933 • Studied medicine in Malta and then psychology and physiology in Oxford • Received a Ph.D. from Cambridge • Has held academic appointments in Oxford, London, Cambridge, Harvard and now DCU • Could well be said to be the world’s best known “thinker”
Parallel Thinking • The Six Thinking Hats method is based on the idea of parallel thinking • Parallel thinking is an alternative to adversarial thinking • Put simply we all channel our thinking efforts in the same direction at the same time Adversarial Thinking Parallel Thinking A A B B C A C C A B C B
The Six Thinking Hats • A thinking system based on 6 imaginary hats which represent 6 different modes of thinking
When To Use The Six Hats? • The six hats technique can be used individually or in groups • Similarly, a single hat can be used for a brief thinking exercise, or the complete system can be used to solve a problem • The most common use is that the hats are used as a full system in group meetings ACHTUNG! The hats are NOT categories of people. Everyone at the meeting puts on the same hat at the same time – parallel thinking
The Six Thinking Hats Taken from Edward de Bono’s “Six Thinking Hats” • White is neutral and objective • Red suggests anger, rage and emotions • Black is sombre and serious • Yellow is sunny and positive • Green is grass, vegetation and abundant fertile growth • Blue is cool and is the colour of the sky, which is above all else
The White Hat “Neutral & objective” • The white hat is concerned with objective facts and figures • Separates fact from speculation • Specifies action needed to fill gaps in our knowledge • Assesses the relevance and accuracy of information • Notes both points of view when there is conflict
Facts Vs Beliefs • It can be useful to make a distinction between • Checked facts • Unchecked facts (beliefs) • Both are useful, but we must be sure to specify what kind of fact we are dealing with • “In 1991 the Russian merchant fleet carried 464 million tons of cargo” • “I think I am right in saying the Russian merchant fleet carries a significant part of world trade”
Typical White Hat Statements • Some typical “white hat” statements: • 18% of defects were cause by human error • The cost of the plastic tray has increased by 15% • How many of our staff can speak a 2nd language? • The project is 10 days ahead of schedule • Do we know what the ain causes for the increase in absenteeism are? • The majority of people surveyed felt the president was incompetent
The Red Hat “Anger, rage & emotions” • The red hat gives the emotional view • Gives permission to express feelings, hunches and intuitions • Does not require justification or explanation • Should be given a limited amount of time • Can be used to help make a decision
Typical Red Hat Statements • Some typical “red-hat” statements: • My red hat feeling is that this is a terrible idea • I really feel that she is the right person for the job • This design is hideous: it will never catch on • I don’t think that lowering prices is going to work • My gut jus tells me this is the right choice • I have a soft spot for Jim. I know he’s a conman and he certainly conned us, but he did it with style. I like him!
The Black Hat “Sombre and serious” • The black hat is cautious and careful and points out the weaknesses in an idea • Explores why an idea may not work • Points out difficulties • Must give logical reasons for concerns
The Black Hat (cont…) • Should always be used if an idea seems attractive • Should always be used when action is going to be taken • Actually limits negativity by giving it it’s own time and place • Like salt – useful in moderation, but dangerous if overused!
Typical Black Hat Statements • Typical “black-hat” statements include: • This project does not fit the new regulations on data protection • If too many people accept our offer how will we cope? • It would be very easy to forge these gift vouchers • Those loose pieces may be swallowed by children • In introducing a wage freeze might cost us some of our best people
The Yellow Hat “Sunny and positive” • The yellow hat is optimistic and covers hope and positive thinking • Explores the benefits of an idea • Must give reasons why an idea is valuable or might work • Reinforces creative ideas and new directions • Takes more work than using the black hat!
Yellow Hat Questions • To spur on some yellow hat thinking, try asking the following questions: • What are the advantages? • What are the values in the idea? • Who might benefit from it? • How might the idea be made feasible? • Is the concept behind the idea good? • How might the idea be made more attractive? • Are there any potential values in the idea?
Typical Yellow Hat Statements • The following are some typical “yellow-hat” statements: • Optimal flexitime would be attractive to those with families or those that live far away • Using retired people offers the advantage of a more experienced work force • The new packaging would allow us get on more supermarket shelves • Failing that exam was the best thing that ever happened to Jim – he would never have been happy as a hairdresser
The Green Hat “Grass, vegetation & abundant fertile growth” • The green hat indicates creativity and new ideas • Encourages a search for new ideas • Seeks to modify and remove faults from existing ideas • Makes time for creative effort - brainstorming
Typical Green Hat Statements • Typical “green-hat” statements include: • We could modify this idea by making it optional rather than compulsory • Maybe we could make the box a different colour • How about decreasing the volume by 10% while only reducing the price by 5%? • Some time could be used for training • How about making it circular instead • Why not manufacture hardware as well as software?
The Blue Hat “Cool and the colourof the sky” • The blue hat is concerned with control, the organisation of the thinking process and the use of other hats • Thinking about thinking, not the topic • The role of the facilitator • Makes calls for the group to make decisions • Prevents drift and waffle
Blue Hat Uses • During blue hat thinking we’ll decide: • Which of the hats will be used? • In what sequence will they be used? • How long will be spent on each? • Is each hat being used correctly? • So, we use it to lay out the thinking agenda • The blue hat is slightly different to the others as the facilitator keeps it “half-on” throughout an entire meeting
Typical Blue Hat Statements • Some typical “blue-hat” statements: • There is not much information on this topic, we need some white hat thinking • That is a black hat comment we are supposed to be doing yellow hat thinking at the moment • Are there any alternative approaches? It’s time for some green hat thinking • Let’s pause and recap on what’s been decided so far • Before going ahead with this idea it would be good to black hat it first for pitfalls
The Six Thinking Hats Summary Taken from Edward de Bono’s “Six Thinking Hats” • White is neutral and objective • Red suggests anger, rage and emotions • Black is sombre and serious • Yellow is sunny and positive • Green is grass, vegetation and abundant fertile growth • Blue is cool and is the colour of the sky, which is above all else
Quick Exercise • Match the statements to the hats – invent context where appropriate Retooling would take a minimum of three months She can speakFrench very well The cost of the plastic trayhas increased by 15% Most of the work on this projecthas already been done My intuition tells methat won’t work Are we ready to cometo a final decision? That secretarial agencyis very expensive
Single Use Of The Hats • The use of one hat specifically to request a certain type of thinking • Useful as a means to direct thinking • Examples: • Could you give me your black hat on that? • Everybody take do minutes and green hat the possibilities • I think you might not be happy, give me your red hat of the situation • I don’t think we’ll go ahead with this, but give me a quick yellow hat on it just to be sure
Systematic Use Of The Hats • The most common use of the six hats system is in meetings • The hats are particularly useful when: • Those in the meeting have strongly held differing views • When there is a rambling discussion not getting anywhere • When time is short and a subject needs to be examined carefully
Advantages Of The Hats • The following are the key advantages of using the six hat system: • Harnesses the full power of those present • Saves time • Removes ego • Focuses on one thing at a time – avoids confusion
Six Hat Sequences • There are three broad categories of sequences for using the hats: • Fixed sequences Note: Not every hat has to be used and hats can be used more than once if required
Six Hat Sequences (cont…) • Contingent and flexible sequences
Six Hat Sequences (cont…) • Evolving sequences • We need an experienced facilitator to make evolving sequences work well • However, they are useful for complicated matters that may require long, unpredictable discussion ? ? ? ?
Six Hat Sequences (cont…) • The following are a list of possible fixed sequences for different thinking scenarios: • Short sequences • First ideas • Evaluation (PMI) • Explanation • Long sequences • Problem solving • Creative effort • Decision
Six Hat Sequences: First Ideas Blue: Set the focus and define the subject White: Lay out what we know about the situation Green: Generate ideas
Six Hat Sequences: Evaluation (PMI) Yellow: Search for benefits and values Black: Identify difficulties and dangers Green: Generate ideas and alternatives
Six Hat Sequences: Explanation White: Gather information Green: Generate ideas and alternatives
Six Hat Sequences: Problem Solving Blue: Define the problem White: Look at all available information Green: Generate possible solutions Yellow: Check the feasibility of each solution Black: Assess the weaknesses of each solution White: Match between solutions and information Red: Choice of final solution
Six Hat Sequences: Creative Effort Blue: Clarify the creative need White: Look at all available information Green: Generate ideas Yellow: Find the benefits of the ideas Black: Identify the faults in the ideas Green: Remove faults Red: Decide how we feel about the idea Blue: Summarise the exploration
Six Hat Sequences: Decision Blue: Define what we need to decide Green: Generate and review alternatives White: Assess what is known about the situation Yellow: Assess fit of the alternatives Black: Assess lack of fit of the alternatives Red: Make a decision Black: Assess the decision Blue: Summarise and plan next steps
Some Notes About The Sequences • The sequences are guidelines, so don’t be afraid to try to roll-your-own • Don’t be afraid to use some of the other techniques we have spoken about in conjunction with the hats • Brain storming rules for green hat • Root cause analysis for white hat • Force filed analysis for red hat after yellow and black hats • Drop in the blue/red hat periodically for a short period to make sure everything is okay
Using The Six Hats In Meetings • When using the hats to run a meeting keep the following in mind: • Set out short amounts of time for each hat • 1 minute per person present for each hat (up to ~5 minutes) • Much shorter for red hat (~30 seconds) • Don’t be afraid to extend/shorten timings • Always use the designated hat • Encourage everybody to get involved under each hat • Don’t let people sit there waiting for the black hat to come along!
Using The Six Hats In Meetings (cont…) • Hats are directions, not descriptions • The facilitator always keeps the blue hat on • Prompt people to get involved – not for white hat • Stop people from talking outside the hats • Conflicts should not arise during six hat meetings, if they do use the hats to put both sides on the table • Copious note should be taken • Maybe a page for each hat • Ask people to perform some white hat thinking before the session
Six Hats Exercise 1 • First Ideas • “There is a suggestion that after the age of 60 years, people should pay a lower rate of income tax” • In a group perform a three hat first ideas sequence on this • Remember to elect a facilitator • Remember to keep an eye on the timings
Six Hats Exercise 2 • Evaluation (PMI) • “On a prominently displayed board in the workplace each person can indicate one of two things: that he or she is under pressure at the moment and is not available for discussions or further work or that he or she is not under such pressure” • In a group perform a three hat evaluation (PMI) sequence on this • Remember to elect a facilitator • Remember to keep an eye on the timings
Six Hats Exercise 3 • Perform an 8 hat creative effort sequence on one of the following: • “Young students are not taking up science, engineering and technology courses in school or at third level. What can we do about this?” • “As the Irish minister for finance we are going to do something about stamp duty on homes purchased”
Six Hats Summary • The six hats is a technique which can be used to guide thinking • It’s particular advantages are: • Harnesses the full power of those present • Saves time • Removes ego • Focuses on one thing at a time – avoids confusion • Particularly useful for meetings
Six Hats And Teaching/Presentation • One novel use of the six hats is using it for presenting information/teaching • Use the hats organise the information being presented • Here is a quick example on the French resistance prepared by Damian Gordon