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IBM Systems Journal
People communicate with each other in sentences that incorporate two kinds of information: propositions about some subject, and metalevel speech acts that specify how the propositional information is used-as an assertion, a command, a question, or a promise. By means of speech acts, a group of people who have different areas of expertise can cooperate and dynamically reconfigure their social interactions to perform tasks and solve problems that would be difficult or impossible for any singledoi:10.1147/sj.413.0331 fatcat:y47vunqjqnaeni7fcj3bzjptlm