precedence diagram method
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precedence diagram method[¦pres·əd·əns ′dī·ə‚gram ‚meth·əd]
A technique for constructing a network in which the activities are represented by symbols that are connected by lines to indicate the logical relationships between them. Abbreviated PDM.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.