The 100 Percent RuleAnatomy of a WBSProduct Projects BreakdownService Projects BreakdownResults Projects BreakdownCross-Cutting ElementsProject ManagementWBS DictionaryWork PackagesAppropriate Level of DetailUse of the WBS to Develop ActivitiesThe WBS and ActivitiesActivity DefinitionInputs versus Outputs—Resources versus DeliverablesInput versus Output ElementsDeliverables versus Intermediate OutputsNumbering the WBSAlternate Structure ConceptsOther Categorizations