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それは個別最適なのか?
全体最適なのか?
工藤 由美
VUCAの時代を生き抜くために
虫、鳥、魚のすべての視点を
使いこなす。
自己紹介
【仕事】
モデリングやアーキテクチャを売りにしてる中小企業で
システムオブシステムズのビジネスアーキテクト兼コンサルとして
企画~要件定義の支援担当。
ビジネス層からDDDやクリーンアーキテクチャの思想を盛り込む活動を布教中。
【趣味】
ラウドロックやハードコア(重たいサウンドのもの)を聴いたりBa&Dr編曲。
最近、ずっと音楽活動できてない💦
2024/2/21
前提知識
2024/2/21
抽象化の視点
2024/2/21
アンチパターン
全体最適(全社最適)は、
すべての個別(事業最適)の最適化をはかれば成立する。 という妄信
↑ はい、この考え方で日本は戦争時代からずっとビジネスでも負け続けました。
すべてを最適化しようとして無駄なリソースを投資して疲弊し、
肝心なとこへの分配ができずに大敗北。
上記は戦時中から日本が行ってきたビジネスでも見受けられるアンチパターンです。
2024/2/21
事業同士も互いに相互作用働いてる
事業Aに注力すると、
事業Bは相乗効果で利益向上するが、
事業Cはなぜだか下がってしまう。
みたいな現象もざらに起こり得る。
事業同士がトレードオフ関係になっているケース。
しかも優先度もそれぞれバラバラ。
どうする!?
2024/2/21
雲泥の差
全体の系から見て、ここを最適化するのが妥当だ!!ってなって個別最適
するのと
全体の系を見ずに個別最適に走るのは雲泥の差。
上は戦略的発想、下は戦術的発想。
日本は戦術的発想は強くても、戦略的発想が乏しい人が多い国。
視座をあげる習慣を意図的につくり上げなくてはならない!!
2024/2/21
身に付けるべきスキル
抽象化能力とトップダウン構造化思考
・トップダウンてのは、最上位目的ToBeから逆算して考えること。
そこから抽象度を揃えながら具体的になるまで小さく分割。
(開発者だけでなくPMさんにも必須スキル)
・アナロジーの習慣をつける。(誰もが多かれ少なかれ無意識にやってる)
2024/2/21

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2023_9_15登壇_それは個別最適なのか?それとも全体最適なのか? .pptx