A group of people write ideas on sticky notes as part of a brainstorming session.
A group of people write ideas on sticky notes as part of a brainstorming session.

Brainstorming is a group creativity technique by which efforts are made to find a conclusion for a specific problem by gathering a list of ideas spontaneously contributed by its members.[citation needed]

In other words, brainstorming is a situation where a group of people meet to generate new ideas and solutions around a specific domain of interest by removing inhibitions. People are able to think more freely and they suggest as many spontaneous new ideas as possible. All the ideas are noted down without criticism and after the brainstorming session the ideas are evaluated.[citation needed]

The term was popularized by Alex Faickney Osborn in the classic work Applied Imagination (1953).[1] Once a new product has passed through the screening process, the next step is to conduct a business analysis. Business analysis is a basic assessment of a product's compatibility in the marketplace and its potential profitability. Both the size of the market and competing products are often studied at this point. The most important question relates to market demand: How will a product affect a firm's sales, costs, and profits? If a product survives the first three steps, it is developed into a prototype that should reveal the intangible attributes it possesses as perceived by the consumer.


In 1939, advertising executive Alex F. Osborn began developing methods for creative problem-solving.[2] He was frustrated by employees' inability to develop creative ideas individually for ad campaigns. In response, he began hosting group-thinking sessions and discovered a significant improvement in the quality and quantity of ideas produced by employees. He first termed the process as organized ideation, but participants later came up with the term "brainstorm sessions", taking the concept after the use of "the brain to storm a problem".[3]

During the period when Osborn made his concept, he started writing on creative thinking, and the first notable book where he mentioned the term brainstorming was How to Think Up (1942).[4]

Osborn outlined his method in the subsequent book Your Creative Power (1948), in chapter 33, "How to Organize a Squad to Create Ideas".[5][6]

One of Osborn's key recommendations was for all the members of the brainstorming group to be provided with a clear statement of the problem to be addressed prior to the actual brainstorming session.[2] He also explained that the guiding principle is that the problem should be simple and narrowed down to a single target.[7] Here, brainstorming is not believed to be effective in complex problems because of a change in opinion over the desirability of restructuring such problems. While the process can address the problems in such a situation, tackling all of them may not be feasible.[7]

Osborn's method

Flowchart for conducting a brainstorming session.
Flowchart for conducting a brainstorming session.

Two principles

Osborn said that two principles contribute to "ideative efficacy":

  1. Defer judgment;
  2. Reach for quantity.[8]

Four rules

Following these two principles were his four general rules of brainstorming, established with intention to:[citation needed]

These four rules were:

  1. Go for quantity: This rule is a way of enhancing divergent production, aiming at facilitation of problem solution through the maxim quantity breeds quality. The assumption is that the greater the number of ideas generated the bigger the chance of producing a radical and effective solution.[citation needed]
  2. Withhold criticism: In brainstorming, criticism of ideas generated should be put 'on hold'. Instead, participants should focus on extending or adding to ideas, reserving criticism for a later 'critical stage' of the process. By suspending judgment, participants will feel free to generate unusual ideas.[citation needed]
  3. Welcome wild ideas: To get a good long list of suggestions, wild ideas are encouraged. They can be generated by looking from new perspectives and suspending assumptions. These new ways of thinking might give better solutions.[citation needed]
  4. Combine and improve ideas: As suggested by the slogan "1+1=3". It is believed to stimulate the building of ideas by a process of association.[8]


Osborn said brainstorming should address a specific question; he held that sessions addressing multiple questions were inefficient.[citation needed]

Further, the problem must require the generation of ideas rather than judgment; he uses examples such as generating possible names for a product as proper brainstorming material, whereas analytical judgments such as whether or not to marry do not have any need for brainstorming.[8]


Osborn envisioned groups of around 12 participants, including both experts and novices. Participants are encouraged to provide wild and unexpected answers. Ideas receive no criticism or discussion. The group simply provide ideas that might lead to a solution and apply no analytical judgment as to the feasibility. The judgments are reserved for a later date.[citation needed]


Nominal group technique

Main article: Nominal group technique

Participants are asked to write their ideas anonymously. Then the facilitator collects the ideas and the group votes on each idea. The vote can be as simple as a show of hands in favor of a given idea. This process is called distillation.[citation needed]

After distillation, the top-ranked ideas may be sent back to the group or to subgroups for further brainstorming. For example, one group may work on the color required in a product. Another group may work on the size, and so forth. Each group will come back to the whole group for ranking the listed ideas. Sometimes ideas that were previously dropped may be brought forward again once the group has re-evaluated the ideas.[citation needed]

It is important that the facilitator is trained in this process before attempting to facilitate this technique. The group should be primed and encouraged to embrace the process. Like all team efforts, it may take a few practice sessions to train the team in the method before tackling the important ideas.[citation needed]

Group passing technique

Each person in a circular group writes down one idea, and then passes the piece of paper to the next person, who adds some thoughts. This continues until everybody gets his or her original piece of paper back. By this time, it is likely that the group will have extensively elaborated on each idea.[citation needed]

The group may also create an "idea book" and post a distribution list or routing slip to the front of the book. On the first page is a description of the problem. The first person to receive the book lists his or her ideas and then routes the book to the next person on the distribution list. The second person can log new ideas or add to the ideas of the previous person. This continues until the distribution list is exhausted. A follow-up "read out" meeting is then held to discuss the ideas logged in the book. This technique takes longer, but it allows individuals time to think deeply about the problem.[citation needed]

Team idea mapping method

This method of brainstorming works by the method of association. It may improve collaboration and increase the quantity of ideas, and is designed so that all attendees participate and no ideas are rejected.[citation needed]

The process begins with a well-defined topic. Each participant brainstorms individually, then all the ideas are merged onto one large idea map. During this consolidation phase, participants may discover a common understanding of the issues as they share the meanings behind their ideas. During this sharing, new ideas may arise by the association, and they are added to the map as well. Once all the ideas are captured, the group can prioritize and/or take action.[9]

Directed brainstorming

Directed brainstorming is a variation of electronic brainstorming (described below). It can be done manually or with computers. Directed brainstorming works when the solution space (that is, the set of criteria for evaluating a good idea) is known prior to the session. If known, those criteria can be used to constrain the ideation process intentionally.[citation needed]

In directed brainstorming, each participant is given one sheet of paper (or electronic form) and told the brainstorming question. They are asked to produce one response and stop, then all of the papers (or forms) are randomly swapped among the participants. The participants are asked to look at the idea they received and to create a new idea that improves on that idea based on the initial criteria. The forms are then swapped again and respondents are asked to improve upon the ideas, and the process is repeated for three or more rounds.[citation needed]

In the laboratory, directed brainstorming has been found to almost triple the productivity of groups over electronic brainstorming.[10]

Guided brainstorming

A guided brainstorming session is time set aside to brainstorm either individually or as a collective group about a particular subject under the constraints of perspective and time. This type of brainstorming removes all cause for conflict and constrains conversations while stimulating critical and creative thinking in an engaging, balanced environment.[citation needed]

Participants are asked to adopt different mindsets for pre-defined period of time while contributing their ideas to a central mind map drawn by a pre-appointed scribe. Having examined a multi-perspective point of view, participants seemingly see the simple solutions that collectively create greater growth. Action is assigned individually.[citation needed]

Following a guided brainstorming session participants emerge with ideas ranked for further brainstorming, research and questions remaining unanswered and a prioritized, assigned, actionable list that leaves everyone with a clear understanding of what needs to happen next and the ability to visualize the combined future focus and greater goals of the group nicely.[citation needed]

Individual brainstorming

Individual brainstorming is the use of brainstorming in solitary situations. It typically includes such techniques as free writing, free speaking, word association, and drawing a mind map, which is a visual note taking technique in which people diagram their thoughts. Individual brainstorming is a useful method in creative writing and has been shown to be superior to traditional group brainstorming.[11][12]

Question brainstorming

This process involves brainstorming the questions, rather than trying to come up with immediate answers and short-term solutions. Theoretically, this technique should not inhibit participation as there is no need to provide solutions. The answers to the questions form the framework for constructing future action plans. Once the list of questions is set, it may be necessary to prioritize them to reach to the best solution in an orderly way.[13]

"Questorming" is another term for this mode of inquiry.[14]

Methods to improving brainstorming sessions

Groups can improve the effectiveness and quality of their brainstorming sessions in a number of ways.[15]

Alternatives to brainstorming

If brainstorming does not work for a group, some alternatives are available:[15]

Electronic brainstorming

See also: Brainstorming software, Electronic meeting system, and Computer supported brainstorming

Although the brainstorming can take place online through commonly available technologies such as email or interactive web sites, there have also been many efforts to develop customized computer software that can either replace or enhance one or more manual elements of the brainstorming process.[citation needed]

Early efforts, such as GroupSystems at University of Arizona[16] or Software Aided Meeting Management (SAMM) system at the University of Minnesota,[17] took advantage of then-new computer networking technology, which was installed in rooms dedicated to computer supported meetings. When using these electronic meeting systems (EMS, as they came to be called), group members simultaneously and independently entered ideas into a computer terminal. The software collected (or "pools") the ideas into a list, which could be displayed on a central projection screen (anonymized if desired). Other elements of these EMSs could support additional activities such as categorization of ideas, elimination of duplicates, assessment and discussion of prioritized or controversial ideas. Later EMSs capitalized on advances in computer networking and internet protocols to support asynchronous brainstorming sessions over extended periods of time and in multiple locations.

Introduced along with the EMS by Nunamaker and colleagues at University of Arizona[16] was electronic brainstorming (EBS). By utilizing customized computer software for groups (group decision support systems or groupware), EBS can replace face-to-face brainstorming.[18] An example of groupware is the GroupSystems, a software developed by University of Arizona.[16] After an idea discussion has been posted on GroupSystems, it is displayed on each group member's computer. As group members simultaneously type their comments on separate computers, those comments are anonymously pooled and made available to all group members for evaluation and further elaboration.[16]

Compared to face-to-face brainstorming, not only does EBS enhanced efficiency by eliminating travelling and turn-taking during group discussions, it also excluded several psychological constraints associated with face-to-face meetings. Identified by Gallupe and colleagues,[18] both production blocking (reduced idea generation due to turn-taking and forgetting ideas in face-to-face brainstorming)[19] and evaluation apprehension (a general concern experienced by individuals for how others in the presence are evaluating them) are reduced in EBS.[20] These positive psychological effects increase with group size.[21] A perceived advantage of EBS is that all ideas can be archived electronically in their original form, and then retrieved later for further thought and discussion. EBS also enables much larger groups to brainstorm on a topic than would normally be productive in a traditional brainstorming session.[18]

Computer supported brainstorming may overcome some of the challenges faced by traditional brainstorming methods. For example, ideas might be "pooled" automatically, so that individuals do not need to wait to take a turn, as in verbal brainstorming. Some software programs show all ideas as they are generated (via chat room or e-mail). The display of ideas may cognitively stimulate brainstormers, as their attention is kept on the flow of ideas being generated without the potential distraction of social cues such as facial expressions and verbal language.[21] EBS techniques have been shown to produce more ideas and help individuals focus their attention on the ideas of others better than a brainwriting technique (participants write individual written notes in silence and then subsequently communicate them with the group).[21] The production of more ideas has been linked to the fact that paying attention to others' ideas leads to non-redundancy, as brainstormers try to avoid to replicate or repeat another participant's comment or idea. Conversely, the production gain associated with EBS was less found in situations where EBS group members focused too much on generating ideas that they ignored ideas expressed by others. The production gain associated with GroupSystem users' attentiveness to ideas expressed by others has been documented by Dugosh and colleagues.[22] EBS group members who were instructed to attend to ideas generated by others outperformed those who were not in terms of creativity.

According to a meta-analysis comparing EBS to face-to-face brainstorming conducted by DeRosa and colleagues,[23] EBS has been found to enhance both the production of non-redundant ideas and the quality of ideas produced. Despite the advantages demonstrated by EBS groups, EBS group members reported less satisfaction with the brainstorming process compared to face-to-face brainstorming group members.

Some web-based brainstorming techniques allow contributors to post their comments anonymously through the use of avatars. This technique also allows users to log on over an extended time period, typically one or two weeks, to allow participants some "soak time" before posting their ideas and feedback. This technique has been used particularly in the field of new product development, but can be applied in any number of areas requiring collection and evaluation of ideas.[24]

Some limitations of EBS include the fact that it can flood people with too many ideas at one time that they have to attend to, and people may also compare their performance to others by analyzing how many ideas each individual produces (social matching).[citation needed]


Some research indicates that incentives can augment creative processes. Participants were divided into three conditions. In Condition I, a flat fee was paid to all participants. In the Condition II, participants were awarded points for every unique idea of their own, and subjects were paid for the points that they earned. In Condition III, subjects were paid based on the impact that their idea had on the group; this was measured by counting the number of group ideas derived from the specific subject's ideas. Condition III outperformed Condition II, and Condition II outperformed Condition I at a statistically significant level for most measures. The results demonstrated that participants were willing to work far longer to achieve unique results in the expectation of compensation.[25] 

Challenges to effective group brainstorming

A good deal of research refutes Osborn's claim that group brainstorming could generate more ideas than individuals working alone.[12] For example, in a review of 22 studies of group brainstorming, Michael Diehl and Wolfgang Stroebe found that, overwhelmingly, groups brainstorming together produce fewer ideas than individuals working separately.[26] However, this conclusion is brought into question by a subsequent review of 50 studies by Scott G. Isaksen showed that a misunderstanding of the tool, and weak application of the methods (including lack of facilitation), and the artificiality of the problems and groups undermined most such studies, and the validity of their conclusions.[27]

Several factors can contribute to a loss of effectiveness in group brainstorming.

  1. Group member(s) may intuitively mistake others' ideas for their own, and so when they think about their own performance they cognitively claim a few ideas that others actually suggested[35]
  2. Group members compare themselves to others who generate relatively few ideas, reassuring them that they are one of the high performers[36]
  3. Group brainstorming may "feel" more successful because participants rarely experience failure in a communal process. When individuals are trying to think creatively alone, people repeatedly find that they are unable to come up with a new idea. In a group setting, people are less likely to experience this failure in their search for new ideas because others' ideas are being discussed.[37]

See also


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  2. ^ a b Parker, Jeanette; Begnaud, Lucy (2004). Developing Creative Leadership. Portsmouth, NH: Teacher Ideas Press. p. 20. ISBN 978-1563086311.
  3. ^ Trott, Paul; Hartmann, Dap; van der Duin, Patrick; Scholten, Victor; Ortt, Roland (2016). Managing Technology Entrepreneurship and Innovation. Oxon: Routledge. p. 63. ISBN 9780415677219.
  4. ^ "What is Brainstorming and How Is It Helpful?". Retrieved 2018-04-17.
  5. ^ Lehrer, Jonah (2012-01-30). "Groupthink: the brainstorming myth". The New Yorker. Retrieved 2013-10-23.
  6. ^ "Your Creative Power". 1948.
  7. ^ a b Hicks, Michael (2004). Problem Solving and Decision Making: Hard, Soft and Creative Approaches. Cengage Learning EMEA. p. 387. ISBN 1861526172.
  8. ^ a b c Osborn, A.F. (1963) Applied imagination: Principles and procedures of creative problem solving (Third Revised Edition). New York, NY: Charles Scribner's Sons.
  9. ^ "What is Mind Mapping? (and How to Get Started Immediately)". Litemind.com. 2007-08-07. Retrieved 2012-11-24.
  10. ^ Santanen, E., Briggs, R. O., & de Vreede, G-J. (2004). Causal Relationships in Creative Problem Solving: Comparing Facilitation Interventions for Ideation. Journal of Management Information Systems. 20(4), 167-198.
  11. ^ Furnham, A., & Yazdanpanahi, T. (1995). Personality differences and group versus individual brainstorming. Personality and Individual Differences, 19, 73-80.
  12. ^ a b c d Michael Diehl; Wolfgang Stroebe (1991). "Productivity Loss in Idea-Generating Groups: Tracking Down the Blocking Effect". Journal of Personality and Social Psychology. 61 (3): 392–403. doi:10.1037/0022-3514.61.3.392.
  13. ^ Ludy, Perry J. Profit Building: Cutting Costs Without Cutting People. San Francisco: Berret-Koehler, Inc, 2000. Print.
  14. ^ Questorming: An Outline of the Method Archived 2010-01-28 at the Wayback Machine, Jon Roland, 1985
  15. ^ a b Forsyth, Donelson (2014). Group Dynamics 6th Edition. Belmont, California: Wadsworth Engage Learning. ISBN 9781133956532.
  16. ^ a b c d Nunamaker, Jay; Dennis, Alan; Valacich, Joseph; Vogel, Doug; George Joey (1991). "Electronic Meeting Systems to Support Group Work". Communications of the ACM. 34 (7): 40–61. doi:10.1145/105783.105793. S2CID 10389854.
  17. ^ DeSanctis, Gerardine; Poole, M.S.; Zigurs, I.; et al. (2008). "The Minnesota GDSS research project: Group support systems, group processes, and outcomes". Journal of the Association for Information Systems. 9 (10): 551–608. doi:10.17705/1jais.00177. S2CID 51855411.
  18. ^ a b c Gallupe, R. B., Dennis, A. R., Cooper, W. H., Valacich, J. S., Bastianutti, L. M. and Nunamaker, J. F. (1992), "Electronic Brainstorming and Group Size," Academy of Management Journal, Vol. 35, No. 2, pp. 350-369. JSTOR 256377
  19. ^ Gallupe, R. B.; Cooper, W. H.; Grise, M.-L.; Bastianutti, L. M. (1994). "Blocking electronic brainstorms". Journal of Applied Psychology. 79 (2): 77–86. doi:10.1037/0021-9010.79.1.77.
  20. ^ Frunham, A (2000). "The brainstorming myth". Business Strategy Review. 11 (4): 21–28. doi:10.1111/1467-8616.00154.
  21. ^ a b c Michinov, N (2012). "Is electronic brainstorming the best way to improve creative performance in groups? An overlooked comparison of two idea generation techniques". Journal of Applied Social Psychology. 42: E222–E243. doi:10.1111/j.1559-1816.2012.01024.x.
  22. ^ Leggett Dugosh, Karen; Paulus, Paul B. (1 May 2005). "Cognitive and social comparison processes in brainstorming". Journal of Experimental Social Psychology. 41 (3): 313–320. doi:10.1016/j.jesp.2004.05.009. S2CID 145769905.
  23. ^ DM DeRosa; et al. (2007). "The medium matters: Mining the long-promised merit of group interaction in creative idea generation tasks in a meta-analysis of the electronic group brainstorming literature". Computers in Human Behavior. 23 (3): 1549–1581. doi:10.1016/j.chb.2005.07.003.
  24. ^ Kerzner, H. (2013). Project management: A systems approach to planning, scheduling, and controlling (11th ed.). Hoboken, NJ: Wiley.
  25. ^ Toubia, Olivier. "Idea Generation, Creativity, and Incentives" (PDF). Marketing Science. Retrieved 28 April 2011.
  26. ^ a b Michael Diehl; Wolfgang Stroebe (1987). "Productivity Loss in Brainstorming Groups: Toward the Solution of a Riddle". Journal of Personality and Social Psychology. 53 (3): 497–509. doi:10.1037/0022-3514.53.3.497.
  27. ^ Scott, Isaksen (June 1988). "A review of Brainstorming Research: Six Critical Issues for Inquiry" (PDF). Creative Problem Solving Group Buffalo. Creative Problem Solving Group Buffalo. Archived from the original (PDF) on 11 March 2016. Retrieved 22 June 2016.
  28. ^ Lamm, Helmut; Trommsdorff, Gisela (1973). "Group versus individual performance on tasks requiring ideational proficiency (brainstorming): A review" (PDF). European Journal of Social Psychology. 3 (4): 361–388. doi:10.1002/ejsp.2420030402.
  29. ^ Haddou, H.A.; G. Camilleri; P. Zarate (2014). "Predication of ideas number during a brainstorming session" (PDF). Group Decision and Negotiation. 23 (2): 285. doi:10.1007/s10726-012-9312-8. S2CID 62621727.
  30. ^ Kohn, Nicholas; Smith, Steven M. (2011). "Collaborative fixation: Effects of others' ideas on brainstorming". Applied Cognitive Psychology. 25 (3): 359–371. doi:10.1002/acp.1699.
  31. ^ "23 Creativity Killers That Will Drown Any Brainstorming Session". BoostCompanies. 2016-05-31. Retrieved 2016-10-24.
  32. ^ Camacho, L. M., & Paulus, P. B. (1995). The role of social anxiousness in group brainstorming. Journal of Personality and Social Psychology, 68(6), 1071–1080. [1]
  33. ^ Henningsen, David Dryden; Henningsen, Mary Lynn Miller (2013). "Generating Ideas About the Uses of Brainstorming: Reconsidering the Losses and Gains of Brainstorming Groups Relative to Nominal Groups". Southern Communication Journal. 78 (1): 42–55. doi:10.1080/1041794X.2012.717684. S2CID 145293729.
  34. ^ Brown, V.; Paulus, P. B. (1996). "A simple dynamic model of social factors in group brainstorming". Small Group Research. 27: 91–114. doi:10.1177/1046496496271005. S2CID 143567740.
  35. ^ Stroebe, W., Diehl, M., & Abakoumkin, G. (1992). The illusion of group effectivity. Personality and Social Psychology Bulletin, 18(5), 643-650.
  36. ^ Paulus, P. B., & Dzindolet, M. T. (1993). Social influence processes in group brainstorming. Journal of Personality and Social Psychology, 64(4), 575.
  37. ^ Nijstad, B. A., Stroebe, W., & Lodewijkx, H. F. (2006). The illusion of group productivity: A reduction of failures explanation. European Journal of Social Psychology, 36(1), 31-48.


  1. ^ Osborn, Alex F. (2018-05-11). Applied imagination; principles and procedures of creative thinking. Scribner. OCLC 641122686 – via Open WorldCat.