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A hammock activity (also ''hammock task'') is a schedule or project planning term for a grouping of tasks that "hang" between two end dates it is tied to.〔(【引用サイトリンク】 Project Management Knowledge Summary )〕〔(【引用サイトリンク】 Project Management Questions - Hammock Activity )〕 A hammock activity can group tasks which are not related in the hierarchical sense of a Work Breakdown Structure, or are not related in a logical sense of a task dependency where one task must wait for another. Usages include: * Group dissimilar activities that lead to an overall capability, such as preparations under a summary label, e.g. "vacation preparation"; * Group unrelated items for the purpose of a summary such as a calendar-based reporting period, e.g. "First quarter plans"; * Group ongoing or overhead activities that run the length of an effort, e.g. "project management" The duration of the hammock activity (the size of the hammock) may also be set by the subtasks within it, so that the abstract grouping has a start date of the earliest of any of the subtasks and the finish date is the latest of any of the contents. A hammock activity is regarded as a form of Summary activity that is similar to but different from a Level of Effort (LOE) activity.〔(【引用サイトリンク】 "Level of Effort" in Primavera P6 )〕〔(【引用サイトリンク】 Level of Effort Activity - Primavera P6 step by step tutorial )〕 Use of hammock activities is also a way to simplify the difficulties of performing Work Breakdown Structure decomposition to low levels. == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hammock activity」の詳細全文を読む スポンサード リンク
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