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Behavior tree : ウィキペディア英語版
Behavior tree

Behavior trees are a formal, graphical modelling language used primarily in systems and software engineering. Behavior trees employ a well-defined notation to unambiguously represent the hundreds or even thousands of natural language requirements that are typically used to express the stakeholder needs for a large-scale software-integrated system.〔〔〔〔Wen, L., Dromey, R.G. 2007. (From Requirements Change to Design Change: A Formal Path )〕
== Overview ==
The amount of detail in the large number of natural language requirements for a large-scale system causes short-term memory overload〔Dromey, R.G. 2007. (Principles for Engineering Large-Scale Software-Intensive Systems )〕〔Boston, J. 2008. ( Raytheon Australia supports pioneering systems research )〕 and may create a barrier that prevents anyone from gaining a deep, accurate and holistic understanding of the system needs.〔 Also, because of the use of natural language, there are likely to be many ambiguities, aliases, inconsistencies, redundancies and incompleteness problems associated with the requirements information.〔 This adds further to the uncertainty and complexity. Generally, at best, a few people understand parts of the system or situation well, but no one has other than a superficial understanding of the whole – that is, the detailed integrated behavior of the system.
The behavior tree representation, (with the help of the composition tree〔Behavior Engineering. (Composition Trees )〕 representation that resolves alias and other vocabulary problems with large sets of requirements) allows people to avoid short-term memory overload and produce a deep, accurate, holistic representation of system needs〔 that can be understood by all stakeholders because it strictly uses the vocabulary of the original requirements. Because the behavior tree notation uses a formal semantics, for any given example, it already is, or can be made executable.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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