[B! 設計] damononのブックマーク

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</ul> <p class="centerarticle-sub-navi-more"> <button type="button" class="js-display-all-tags" data-gtm-click-label="user-tags-show-all">タグをすべて表示</button> </p> </div> <div class="centerarticle-sidebar-menu"> <h3 class="centerarticle-aside-title">関連タグで絞り込む (20)</h3> <ul class="centerarticle-sub-navi"> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/aws/" > aws </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/database/" > database </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/DDD/" > DDD </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/it/" > it </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/SQL/" > SQL </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/Vue/" > Vue </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/web/" > web </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" > あとで読む </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E3%82%A8%E3%83%B3%E3%82%B8%E3%83%8B%E3%82%A2/" > エンジニア </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9/" > サービス </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E3%83%87%E3%83%BC%E3%82%BF%E3%83%99%E3%83%BC%E3%82%B9/" > データベース </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E3%83%95%E3%83%AD%E3%83%B3%E3%83%88/" > フロント </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E3%83%97%E3%83%AD%E3%82%B0%E3%83%A9%E3%83%9F%E3%83%B3%E3%82%B0/" > プログラミング </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E3%83%9E%E3%83%8D%E3%82%B8%E3%83%A1%E3%83%B3%E3%83%88/" > マネジメント </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E5%88%86%E6%9E%90/" > 分析 </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E5%AD%A6%E7%BF%92/" > 学習 </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E6%8A%80%E8%A1%93/" > 技術 </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E6%A9%9F%E6%A2%B0%E5%AD%A6%E7%BF%92/" > 機械学習 </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E9%96%8B%E7%99%BA/" > 開発 </a> </li> <li> <a href="/damonon/%E8%A8%AD%E8%A8%88/%E9%96%8B%E7%99%BA%E6%89%8B%E6%B3%95/" > 開発手法 </a> </li> </ul> <p class="centerarticle-sub-navi-more"> <a href="/damonon/bookmark">タグの絞り込みを解除</a> </p> </div> </div> <div class="center-container"> <div class="centerarticle-title-container"> <h2 class="centerarticle-title"> 設計に関するdamononのブックマーク (19) </h2> </div> <div > <script type="text/x-template" id="template-short-url-click"> {{#tweet_url}} <a href="{{tweet_url}}" target="_blank" rel="noopener noreferrer" data-gtm-click-label="reaction-twitter-clicks"><span>{{count}} clicks</span></a> {{/tweet_url}} {{^tweet_url}} <span>{{count}} clicks</span> {{/tweet_url}} </script> <script type="text/x-template" id="template-bookmark-item"> {{^is_wiped}} <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="{{url}}"> <div class="centerarticle-entry {{#has_image}}is-image-entry-unit{{/has_image}}"> <h3 class="centerarticle-entry-title"> <a href="{{url}}" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener{{#noreferrer}} noreferrer{{/noreferrer}}" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="{{favicon_url}}" alt="">{{title}}</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="{{page_url}}" class="js-keyboard-entry-page-openable" title="{{title}} ({{total_bookmarks}}ブックマーク)" data-gtm-click-label="user-bookmark-users">{{total_bookmarks_with_user_postfix}}</a> </span> </li> <li> <a href="/damonon/{{url_query}}" title="『{{root_title}}』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> {{root_title}} </a> </li> {{#is_categorized}} <li><a href="{{category_path}}" data-gtm-click-label="user-bookmark-category">{{category_title}}</a></li> {{/is_categorized}} </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">{{{summary_with_keyword_links}}}</p> {{#has_image}} <a href="{{canonical_url}}" class="centerarticle-entry-image" target="_blank" rel="noopener{{#noreferrer}} noreferrer{{/noreferrer}}" data-gtm-click-label="user-bookmark-thumb"> <img src="{{image_url}}" alt="{{title}}"> </a> {{/has_image}} </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-{{location_id}}"> <div class="centerarticle-reaction-comment js-user-bookmark-comment {{badge_icon}}" data-url="{{url}}" data-user-name="{{author_name}}"> <a href="{{top_page_path}}" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="{{profile_icon_url}}" alt="{{author_name}}" title="{{author_name}}" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="{{anchor_url}}" class="js-anchor-path" data-gtm-click-label="user-reaction-username">{{author_name}}</a></span> <span class="centerarticle-reaction-timestamp">{{created}}</span> <span class="js-private-icon status {{#is_public}}is-hidden{{/is_public}}"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment">{{{comment_expanded}}}</span> <ul class="centerarticle-reaction-tags js-tag-text"> {{#tags}} <li><a href="/{{author_name}}/{{escaped_label}}/" data-gtm-click-label="user-reaction-tag">{{label}}</a></li> {{/tags}} </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="{{#is_bookmark}}comment-permalink{{/is_bookmark}}{{^is_bookmark}}original-permalink{{/is_bookmark}} js-comment-permalink"> <a href="{{comment_page_path}}" data-gtm-click-label="user-reaction-permalink" rel="{{#should_nofollow}}nofollow{{/should_nofollow}}">{{#is_bookmark}}リスト{{/is_bookmark}}{{^is_bookmark}}リンク{{/is_bookmark}}</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> {{#following_bookmarks}} <li> <a href="{{anchor_url}}" class="following-bookmark-link" data-gtm-click-label="user-bookmark-following-bookmarker-icon"> <img src="{{profile_icon_url}}" alt="{{author_name}}" class="following-bookmark-icon" > </a> <span class="following-bookmark-popup"> <span class="following-bookmark-username">{{author_name}}</span><span class="following-bookmark-timestamp">{{created}}</span> <span class="following-bookmark-text"> {{ #comment }}<span class="following-bookmark-comment">{{ comment }}</span>{{ /comment }} <ul class="following-bookmark-tags"> {{ #tags }}<li>{{ label }}</li>{{ /tags }} </ul> </span> </span> </li> {{/following_bookmarks}} {{#following_bookmarks.length}} <li class="centerarticle-reaction-following-more"><button type="button" class="js-show-all-following-bookmarks" data-gtm-click-label="user-bookmark-showall-following-bookmarks">すべて表示</button></li> {{/following_bookmarks.length}} </ul> <div class="js-user-following-bookmarks-detail is-hidden"> {{#following_bookmarks}} <div class="centerarticle-reaction-comment js-user-bookmark-comment {{badge_icon}}" data-url="{{url}}" data-user-name="{{author_name}}"> <a href="{{top_page_path}}" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="{{profile_icon_url}}" alt="{{author_name}}" title="{{author_name}}" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="{{anchor_url}}" class="js-anchor-path" data-gtm-click-label="user-reaction-username">{{author_name}}</a></span> <span class="centerarticle-reaction-timestamp">{{created}}</span> <span class="js-private-icon status {{#is_public}}is-hidden{{/is_public}}"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment">{{{comment_expanded}}}</span> <ul class="centerarticle-reaction-tags js-tag-text"> {{#tags}} <li><a href="/{{author_name}}/{{escaped_label}}/" data-gtm-click-label="user-reaction-tag">{{label}}</a></li> {{/tags}} </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="{{#is_bookmark}}comment-permalink{{/is_bookmark}}{{^is_bookmark}}original-permalink{{/is_bookmark}} js-comment-permalink"> <a href="{{comment_page_path}}" data-gtm-click-label="user-reaction-permalink" rel="{{#should_nofollow}}nofollow{{/should_nofollow}}">{{#is_bookmark}}リスト{{/is_bookmark}}{{^is_bookmark}}リンク{{/is_bookmark}}</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> {{/following_bookmarks}} </div> </li> {{/is_wiped}} </script> <script type="text/x-template" id="template-following-bookmarker-icon"> <li> <a href="{{anchor_url}}" class="following-bookmark-link" data-gtm-click-label="user-bookmark-following-bookmarker-icon"> <img src="{{profile_icon_url}}" alt="{{author_name}}" class="following-bookmark-icon" > </a> <span class="following-bookmark-popup"> <span class="following-bookmark-username">{{author_name}}</span><span class="following-bookmark-timestamp">{{created}}</span> <span class="following-bookmark-text"> {{ #comment }}<span class="following-bookmark-comment">{{ comment }}</span>{{ /comment }} <ul class="following-bookmark-tags"> {{ #tags }}<li>{{ label }}</li>{{ /tags }} </ul> </span> </span> </li> </script> <script type="text/x-template" id="template-bookmark-item-editor"> <div class="centerarticle-entry {{#has_image}}is-image-entry-unit{{/has_image}}"> <h3 class="centerarticle-entry-title"> <a href="{{url}}" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener{{#noreferrer}} noreferrer{{/noreferrer}}" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="{{favicon_url}}" alt="">{{title}}</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="{{page_url}}" class="js-keyboard-entry-page-openable" title="{{title}} ({{total_bookmarks}}ブックマーク)" data-gtm-click-label="user-bookmark-users">{{total_bookmarks_with_user_postfix}}</a> </span> </li> <li> <a href="/damonon/{{url_query}}" title="『{{root_title}}』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> {{root_title}} </a> </li> {{#is_categorized}} <li><a href="{{category_path}}" data-gtm-click-label="user-bookmark-category">{{category_title}}</a></li> {{/is_categorized}} </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">{{{summary_with_keyword_links}}}</p> {{#has_image}} <a href="{{canonical_url}}" class="centerarticle-entry-image" target="_blank" rel="noopener{{#noreferrer}} noreferrer{{/noreferrer}}" data-gtm-click-label="user-bookmark-thumb"> <img src="{{image_url}}" alt="{{title}}"> </a> {{/has_image}} </div> </div> </script> <script type="text/x-template" id="template-bookmark-pager"> <li> <div class="centerarticle-pager"> <span class="centerarticle-waiting js-read-more-waiting is-hidden"><img src="https://b.st-hatena.com/77d2ee6f79ddaf78eb2d198936bae315b6721993/images/v4/public/common/loading@2x.gif" alt="残りのブックマークを読み込んでいます" width="16" height="16" /></span> {{#previous}} <a href="{{page_path}}">{{label}}</a> {{/previous}} {{#pages}} {{#page_path}} <span><a href="{{page_path}}">{{label}}</a></span> {{/page_path}} {{^page_path}} <span>{{label}}</span> {{/page_path}} {{/pages}} {{#next}} <a 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title="DBの寿命はアプリより長い！長生きするDBに必要な設計とリファクタリングを実践から学ぶ - エンジニアHub｜若手Webエンジニアのキャリアを考える！ (826ブックマーク)" data-gtm-click-label="user-bookmark-users">826 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fen-ambi.com%2F" title="『en-ambi.com』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> en-ambi.com </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary"><a data-gtm-click-label="entry-summary-keyword" href="/q/DB">DB</a>の寿命はアプリより長い！長生きする<a data-gtm-click-label="entry-summary-keyword" href="/q/DB">DB</a>に必要な設計とリファクタリングを実践から学ぶアプリケーションの寿命よりも長く、データの追加やテーブルの変更で成長し続ける「データベース」と、どのように付き合っていけばよいのでしょうか？曽根壮大（soud<a data-gtm-click-label="entry-summary-keyword" href="/q/ai">ai</a>）さんによる寄稿です。こんにちは。そーだい（@soud<a data-gtm-click-label="entry-summary-keyword" href="/q/ai">ai</a>1025）です。新しいサービスを始めるとき、必ずと言っていいほどデータベースは利用されています。また今稼働しているサービスの多くでも、<a 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class="js-keyboard-entry-page-openable" title="開発者が知っておくべきSOLIDの原則 | POSTD (533ブックマーク)" data-gtm-click-label="user-bookmark-users">533 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fpostd.cc%2F" title="『postd.cc』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> postd.cc </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">(編注：2020/08/18、いただいたフィードバックをもとに記事を修正いたしました。) オブジェクト指向プログラミングが、ソフトウェア開発に新しい設計を持ち込みました。その結果、開発者は単一の目的を処理するために、全体のアプリケーションに関係なく、1つのクラスの中で、同じ目的や機能を持つデータを結び付けることができるようになりました。しかし、このオブジェクト指向プログラミングで、分かりにくいプログラムやメンテナンスができないプログラムを防ぐことはできません。そこで、5つのガイドラインがRobert C. 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Draft of this art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>e would be also deleted. Are you sure you want to delete this art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>e? この記事は、設計・アーキテクチャ Advent Calendar 2018 の第7日目の記事である。はじめにこの記事では、<a data-gtm-click-label="entry-summary-keyword" href="/q/IT%E6%A5%AD%E7%95%8C">IT業界</a>19年目の僕が実践している変更に強いアーキテクチャについて、出来るだけ難しい表現を避け、教科書的なありきたりな内容ではなく現場の肌感覚に近い切り口で「超ザックリ」な解説を試みてみようと思う。普段自分がよく用いている実装パターンの紹介ともいうべきかも知れない。この記事で説明することいざ「変更に強いアーキテクチャとは」とズバリ訊かれても、一概に「これだ！」という答えはない。プログラミング言語や、フレー</p> <a href="https://qiita.com/lobin-z0x50/items/39131a4f47ed7c5df443" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/9f11df433df0cb3ca37b0637279097fa94864d40/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Fadvent-calendar-ogp-background-7940cd1c8db80a7ec40711d90f43539e.jpg%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-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%26mark-x%3D120%26mark-y%3D96%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9OTcyJnR4dD0lNDBsb2Jpbi16MHg1MCZ0eHQtY29sb3I9JTIzM0EzQzNDJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTM2JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9MDIxNmE5MmI0ZjU3NTI5ZWYzOWNkODg3ZmM2ZGIwZWU%26blend-x%3D120%26blend-y%3D445%26blend-mode%3Dnormal%26txt64%3DaW4g5qCq5byP5Lya56S-44ON44Kq44K444OL44Ki%26txt-width%3D972%26txt-clip%3Dend%252Cellipsis%26txt-color%3D%25233A3C3C%26txt-font%3DHiragino%2520Sans%2520W6%26txt-size%3D36%26txt-x%3D134%26txt-y%3D546%26s%3Df8fa4c6fcaac9b89369b62c3a47fdd41" alt="変更に強いアーキテクチャについてIT業界19年目の僕が超ザックリ説明する - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-374742218"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/lobin-z0x50/items/39131a4f47ed7c5df443" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20190102#bookmark-374742218" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2019/01/02</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/it/" data-gtm-click-label="user-reaction-tag">it</a></li> <li><a href="/damonon/%E3%83%97%E3%83%AD%E3%82%B0%E3%83%A9%E3%83%9F%E3%83%B3%E3%82%B0/" data-gtm-click-label="user-reaction-tag">プログラミング</a></li> <li><a href="/damonon/%E8%A8%AD%E8%A8%88/" data-gtm-click-label="user-reaction-tag">設計</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/374742218/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://speakerdeck.com/okunokentaro/frontend-conference-fukuoka-2018"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://speakerdeck.com/okunokentaro/frontend-conference-fukuoka-2018" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fspeakerdeck.com%2Fokunokentaro%2Ffrontend-conference-fukuoka-2018" alt="">500日のトライエラーから生まれた大規模設計ノウハウ / Frontend Conference Fukuoka 2018 - 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kbigwheelのプログラミング・ソフトウェア技術系ブログ"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-374652814"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://kbigwheel.hateblo.jp/entry/2018/12/03/aggregate-and-consistency" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20181203#bookmark-374652814" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/12/03</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E8%A8%AD%E8%A8%88/" data-gtm-click-label="user-reaction-tag">設計</a></li> <li><a href="/damonon/%E6%8A%80%E8%A1%93/" data-gtm-click-label="user-reaction-tag">技術</a></li> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/374652814/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://tech.mercari.com/entry/2018/12/02/000000"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://tech.mercari.com/entry/2018/12/02/000000" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fengineering.mercari.com%2Fblog%2Fentry%2F2018-12-02-000000%2F" alt="">エンジニアリングマネージャーとソフトウェア設計者に共通するスキルを考えてみた - 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Qiita</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/qiita.com/j5ik2o/items/a64007c6d7a89ec2e086" class="js-keyboard-entry-page-openable" title="ドメインオブジェクトの責務について - Qiita (230ブックマーク)" data-gtm-click-label="user-bookmark-users">230 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fqiita.com%2Fj5ik2o" title="『qiita.com/j5ik2o』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> qiita.com/j5ik2o </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">Deleted art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>es cannot be recovered. Draft of this art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>e would be also deleted. Are you sure you want to delete this art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>e? 設計するとき、「このオブジェクトの責務は何だろうか？」とか「この責務に名前をつけるなら何か？」とか、責務について考えることがよくあります。そもそもその責務とは何か、という根源的な疑問について再確認すると共に、ドメイン駆動設計の観点からドメインオブジェクトの責務についても考えてみたいと思います。責務とは困ったときの古典引用。もう絶版になった、オブジェクトデザインという、書籍を紐解いてみましょう。DDDからの引用が多い書籍で、DDDの設計スタイルは、この書籍で紹介する「責務駆動設計(responsibill<a data-gtm-click-label="entry-summary-keyword" href="/q/it">it</a>y-driven desi</p> <a href="https://qiita.com/j5ik2o/items/a64007c6d7a89ec2e086" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/6e7bb8052c32303d18bd70f968fd6b1b2d6d5d85/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9JUUzJTgzJTg5JUUzJTgzJUExJUUzJTgyJUE0JUUzJTgzJUIzJUUzJTgyJUFBJUUzJTgzJTk2JUUzJTgyJUI4JUUzJTgyJUE3JUUzJTgyJUFGJUUzJTgzJTg4JUUzJTgxJUFFJUU4JUIyJUFDJUU1JThCJTk5JUUzJTgxJUFCJUUzJTgxJUE0JUUzJTgxJTg0JUUzJTgxJUE2JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnR4dC1jb2xvcj0lMjMxRTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9NTYmcz1iN2RkZGE1YTRkMmRkNjRkODIwYjM2NjFiMjNhZGJmOA%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBqNWlrMm8mdHh0LWNvbG9yPSUyMzFFMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPWNhOGQ1MDUzYTQ3NGRjYTdjNDYxZDIyYTViYzY4M2Y1%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3D921b5b6aa6408158c1c2bbce0c502d16" alt="ドメインオブジェクトの責務について - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-374189922"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/j5ik2o/items/a64007c6d7a89ec2e086" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20181118#bookmark-374189922" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/11/18</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E5%88%86%E6%9E%90/" data-gtm-click-label="user-reaction-tag">分析</a></li> <li><a href="/damonon/%E8%A8%AD%E8%A8%88/" data-gtm-click-label="user-reaction-tag">設計</a></li> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/374189922/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://blog.gahara.me/entry/cupio-release"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://blog.gahara.me/entry/cupio-release" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fblog.gahara.me%2Fentry%2Fcupio-release" alt="">個人開発でWebサービスを3日でリリースまでにしたこと全て公開する - たばてぃしゃちょー(@gahara_p)の日記</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/blog.gahara.me/entry/cupio-release" class="js-keyboard-entry-page-openable" title="個人開発でWebサービスを3日でリリースまでにしたこと全て公開する - たばてぃしゃちょー(@gahara_p)の日記 (399ブックマーク)" data-gtm-click-label="user-bookmark-users">399 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fblog.gahara.me%2F" title="『blog.gahara.me』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> blog.gahara.me </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">これまでベンチャー企業でBtoCの<a data-gtm-click-label="entry-summary-keyword" href="/q/web%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9">Webサービス</a>を<a data-gtm-click-label="entry-summary-keyword" href="/q/PM">PM</a>したり、大企業で会員数が半端ないCtoC事業の<a data-gtm-click-label="entry-summary-keyword" href="/q/web%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9">Webサービス</a>及びアプリの<a data-gtm-click-label="entry-summary-keyword" href="/q/PM">PM</a>を担ってきました、たばてぃしゃちょーです。ハンドルネームの通り社長業もやっていて、<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A2%E3%83%95%E3%82%A3%E3%83%AA%E3%82%A8%E3%82%A4%E3%83%88">アフィリエイト</a>でそこそこ稼いでいます。 <a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A2%E3%83%95%E3%82%A3%E3%83%AA%E3%82%A8%E3%82%A4%E3%83%88">アフィリエイト</a>に関する過去記事はこちら。 <a data-gtm-click-label="entry-summary-keyword" href="/q/BL">bl</a>og.gahara.me この度、10月20日に<a data-gtm-click-label="entry-summary-keyword" href="/q/Amazon">Amazon</a>の値下げを通知する<a data-gtm-click-label="entry-summary-keyword" href="/q/web%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9">Webサービス</a>をイラク日報村を作ったカリスマ@alea12と一緒にリリースしました。 <a data-gtm-click-label="entry-summary-keyword" href="/q/Amazon">Amazon</a>で安くなったら即通知 Cupio cupio.jp 競合が多数ひしめき合う中、今更<a data-gtm-click-label="entry-summary-keyword" href="/q/Amazon">Amazon</a>の<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A2%E3%83%95%E3%82%A3%E3%83%AA%E3%82%A8%E3%82%A4%E3%83%88">アフィリエイト</a>wwwwwww って思うかもしれません。私も思います。今回は企画からリリースまでにやった事となぜこのサービスを作ることになったのかを書いていきます。スモールスタートの仕方を学びたかったり、<a data-gtm-click-label="entry-summary-keyword" href="/q/web%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9">Webサービス</a>を作って</p> <a href="https://blog.gahara.me/entry/cupio-release" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/f264454a440da6469a0c0970bb93804d581e1868/height=288;version=1;width=512/https%3A%2F%2Fcdn-ak.f.st-hatena.com%2Fimages%2Ffotolife%2Fg%2Fgahara_P%2F20181107%2F20181107080019.png" alt="個人開発でWebサービスを3日でリリースまでにしたこと全て公開する - たばてぃしゃちょー(@gahara_p)の日記"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-373795215"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://blog.gahara.me/entry/cupio-release" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20181107#bookmark-373795215" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/11/07</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9/" data-gtm-click-label="user-reaction-tag">サービス</a></li> <li><a href="/damonon/%E8%A8%AD%E8%A8%88/" data-gtm-click-label="user-reaction-tag">設計</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/373795215/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://nekogata.hatenablog.com/entry/2018/09/10/163206"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://nekogata.hatenablog.com/entry/2018/09/10/163206" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fnekogata.hatenablog.com%2Fentry%2F2018%2F09%2F10%2F163206" alt="">実況中継シリーズ「開発現場で役立たせるための設計原則とパターン」 #builderscon 2018 - 猫型の蓄音機は 1 分間に 45 回にゃあと鳴く</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/nekogata.hatenablog.com/entry/2018/09/10/163206" class="js-keyboard-entry-page-openable" title="実況中継シリーズ「開発現場で役立たせるための設計原則とパターン」 #builderscon 2018 - 猫型の蓄音機は 1 分間に 45 回にゃあと鳴く (1140ブックマーク)" data-gtm-click-label="user-bookmark-users">1140 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fnekogata.hatenablog.com%2F" title="『nekogata.hatenablog.com』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> nekogata.hatenablog.com </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">先日慶應義塾大学日吉キャンパスで行われた <a data-gtm-click-label="entry-summary-keyword" href="/q/Build">build</a>erscon2018、最高のカンファレンスでしたね。わたしも「開発現場で役立たせるための設計原則とパターン」というタイトルで発表させていただきました。今回は恒例「実況中継シリーズ」として、プレゼンの再現をブログで行いたいと思います。なお、過去の実況中継シリーズは前職の<a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%8A%80%E8%A1%93">技術</a>ブログにまとまっていますので、そちらからご覧ください。それでは<a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>編を開始したいと思います。開発現場で役立たせるための設計原則とパターンアバンパートよろしくお願いします。まず最初に簡単に自己紹介をさせていただきます。先月<a data-gtm-click-label="entry-summary-keyword" href="/q/%E8%BB%A2%E8%81%B7">転職</a>をしまして、8/1からClassiという会社で働いています。<a data-gtm-click-label="entry-summary-keyword" href="/q/%E5%A6%BB">妻</a>と息子がおります。<a data-gtm-click-label="entry-summary-keyword" href="/q/Scala">Scala</a>が好きですが、<a data-gtm-click-label="entry-summary-keyword" href="/q/%E4%BB%95%E4%BA%8B">仕事</a>では<a data-gtm-click-label="entry-summary-keyword" href="/q/ruby">Ruby</a>メインという感じです。 Web+<a data-gtm-click-label="entry-summary-keyword" href="/q/DB">DB</a> PressやSoftware Designで何度か特集を書かせていただきました。と</p> <a href="https://nekogata.hatenablog.com/entry/2018/09/10/163206" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/0e3bff828e108de80d7af4a6fe1d1ac581e2ea14/height=288;version=1;width=512/https%3A%2F%2Fcdn.image.st-hatena.com%2Fimage%2Fscale%2F087a881e21d6cc50fed057c57a2217cc3dfc577c%2Fbackend%3Dimagemagick%3Bheight%3D1300%3Bversion%3D1%3Bwidth%3D1300%2Fhttps%253A%252F%252Fcdn-ak.f.st-hatena.com%252Fimages%252Ffotolife%252Fn%252Fnkgt_chkonk%252F20180910%252F20180910095647.png" alt="実況中継シリーズ「開発現場で役立たせるための設計原則とパターン」 #builderscon 2018 - 猫型の蓄音機は 1 分間に 45 回にゃあと鳴く"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-370764118"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://nekogata.hatenablog.com/entry/2018/09/10/163206" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20180910#bookmark-370764118" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/09/10</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E8%A8%AD%E8%A8%88/" data-gtm-click-label="user-reaction-tag">設計</a></li> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/it/" data-gtm-click-label="user-reaction-tag">it</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/370764118/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="http://little-hands.hatenablog.com/entry/2017/10/04/231743"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="http://little-hands.hatenablog.com/entry/2017/10/04/231743" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Flittle-hands.hatenablog.com%2Fentry%2F2017%2F10%2F04%2F231743" alt="">ドメイン駆動設計で実装を始めるのに一番とっつきやすいアーキテクチャは何か[DDD] - 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Explica patrones como agregados, fábricas y repos<a data-gtm-click-label="entry-summary-keyword" href="/q/it">it</a>orios para modelar entidades y servicios, y describe técnicas como capas de anticorru<a data-gtm-click-label="entry-summary-keyword" href="/q/PC">pc</a>ión y con<a data-gtm-click-label="entry-summary-keyword" href="/q/TeX">tex</a>tos de dominio acotados para dividir una aplicación. 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Draft of this art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>e would be also deleted. Are you sure you want to delete this art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>e? 「ようこそ魔境 <a data-gtm-click-label="entry-summary-keyword" href="/q/sier">SIer</a>へ！」はじめにこの記事は、<a data-gtm-click-label="entry-summary-keyword" href="/q/sier">SIer</a>（Syst<a data-gtm-click-label="entry-summary-keyword" href="/q/EM">em</a>s Integrator）に入ったシステム開発未経験者の新人さんたちへ送る、研修では教えてくれないノウハウ集です。実際、弊社の長い研修では実務に使えそうなことをあまり教えてくれませんし、ノウハウは現場の人の頭にしかない状態なので、新人さんは暗中模索で<a data-gtm-click-label="entry-summary-keyword" href="/q/%E4%BB%95%E4%BA%8B">仕事</a>を覚えていくことになります。それも非効率なので、実際に私が２年半1で失敗したこと、やってきてよかったこと（ノウハウ）を体系化したので共有します。（<a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>当はガッツリ社内向けに書いたものなので、一部汎用的でない</p> <a href="https://qiita.com/old-stone/items/6221824566116710453f" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/a976bdd5cd59a0771f59f4697242fcde02525fae/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9JUUzJTgwJTkwU0llciVFNiU5NiVCMCVFNCVCQSVCQSVFNSU5MCU5MSVFMyU4MSU5MSVFMyU4MCU5MSVFNyVBMCU5NCVFNCVCRiVBRSVFMyU4MSVBNyVFMyU4MSVBRiVFNiU5NSU5OSVFMyU4MSU4OCVFMyU4MSVBNiVFMyU4MSU4RiVFMyU4MiU4QyVFMyU4MSVBQSVFMyU4MSU4NCVFMyU4MyU4RSVFMyU4MiVBNiVFMyU4MyU4RiVFMyU4MiVBNiVFOSU5QiU4NiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZ0eHQtY29sb3I9JTIzMUUyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTU2JnM9ZDYwYTUxYjRhMjQ4NmNlODQ0N2FlOWFhZmM1OWE1MmY%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBvbGQtc3RvbmUmdHh0LWNvbG9yPSUyMzFFMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPTk3ZjAxOWM5MDMxMjdmNThkZWJhZDFhZmM5MmRiZDM4%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3D6c603fc36289c5bcd8e323ebc5321119" alt="【SIer新人向け】研修では教えてくれないノウハウ集 - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-367633360"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/old-stone/items/6221824566116710453f" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20180718#bookmark-367633360" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/07/18</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/%E9%96%8B%E7%99%BA/" data-gtm-click-label="user-reaction-tag">開発</a></li> <li><a href="/damonon/%E8%A8%AD%E8%A8%88/" data-gtm-click-label="user-reaction-tag">設計</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/367633360/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://soudai.hatenablog.com/entry/2018/05/01/204442"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://soudai.hatenablog.com/entry/2018/05/01/204442" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fsoudai.hatenablog.com%2Fentry%2F2018%2F05%2F01%2F204442" alt="">ユーザ情報を保存する時のテーブル設計 - そーだいなるらくがき帳</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/soudai.hatenablog.com/entry/2018/05/01/204442" class="js-keyboard-entry-page-openable" title="ユーザ情報を保存する時のテーブル設計 - そーだいなるらくがき帳 (1097ブックマーク)" data-gtm-click-label="user-bookmark-users">1097 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fsoudai.hatenablog.com%2F" title="『soudai.hatenablog.com』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> soudai.hatenablog.com </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">はじめに ※この発言は個人の見解であり、所属する組織の公式見解ではありません用法用量を守り、個人の責任で業務に投入してください参考資料 2024/02/14追記実際のテーブル設計の詳細はこちらを参考にどうぞ。 agilejourney.uzabase.com 要件 User情報を保存するときにどのようなテーブル設計を行うか今北産業で頼むテーブルに状態を持たせず状態毎のテーブルを作る状態が変わればレコードを消して別のta<a data-gtm-click-label="entry-summary-keyword" href="/q/BL">bl</a>eに作る ta<a data-gtm-click-label="entry-summary-keyword" href="/q/BL">bl</a>eの普遍的な情報は別に持たせる僕の考えた最強の<a data-gtm-click-label="entry-summary-keyword" href="/q/DB">DB</a>設計 Po<a data-gtm-click-label="entry-summary-keyword" href="/q/stg">stg</a>re<a data-gtm-click-label="entry-summary-keyword" href="/q/SQL">SQL</a>をベースの雑なER図を作った。これを元に話を進める。 ta<a data-gtm-click-label="entry-summary-keyword" href="/q/BL">bl</a>e構成 users 親ta<a data-gtm-click-label="entry-summary-keyword" href="/q/BL">bl</a>eであり、すべてのユーザはここに属する。基<a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>はINSERTのみでUPDATE、DELETEを考慮しない。 user_det<a data-gtm-click-label="entry-summary-keyword" href="/q/ai">ai</a>l userに付随する詳細の情報がここに登録</p> <a href="https://soudai.hatenablog.com/entry/2018/05/01/204442" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/dfd7a7d874664677b23a4bd0f7b7fe5c6feed432/height=288;version=1;width=512/https%3A%2F%2Fcdn.image.st-hatena.com%2Fimage%2Fscale%2F668ee9d81ffaad6c4a70f57c165736f4ed041540%2Fbackend%3Dimagemagick%3Bheight%3D1300%3Bversion%3D1%3Bwidth%3D1300%2Fhttps%253A%252F%252Fcdn-ak.f.st-hatena.com%252Fimages%252Ffotolife%252FS%252FSoudai%252F20180501%252F20180501192200.png" alt="ユーザ情報を保存する時のテーブル設計 - そーだいなるらくがき帳"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-363358898"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://soudai.hatenablog.com/entry/2018/05/01/204442" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20180502#bookmark-363358898" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/05/02</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/it/" data-gtm-click-label="user-reaction-tag">it</a></li> <li><a href="/damonon/database/" data-gtm-click-label="user-reaction-tag">database</a></li> <li><a href="/damonon/%E8%A8%AD%E8%A8%88/" data-gtm-click-label="user-reaction-tag">設計</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/363358898/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://qiita.com/y-some/items/90651c1e27f7798f87c6"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://qiita.com/y-some/items/90651c1e27f7798f87c6" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fqiita.com%2Fy-some%2Fitems%2F90651c1e27f7798f87c6" alt="">エンジニア歴20数年の私が、設計書を書く際に心がけていること - Qiita</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/qiita.com/y-some/items/90651c1e27f7798f87c6" class="js-keyboard-entry-page-openable" title="エンジニア歴20数年の私が、設計書を書く際に心がけていること - Qiita (1319ブックマーク)" data-gtm-click-label="user-bookmark-users">1319 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fqiita.com%2Fy-some" title="『qiita.com/y-some』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> qiita.com/y-some </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">Deleted art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>es cannot be recovered. Draft of this art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>e would be also deleted. Are you sure you want to delete this art<a data-gtm-click-label="entry-summary-keyword" href="/q/ICL">icl</a>e? はじめに時の経つのは早いもので、私が<a data-gtm-click-label="entry-summary-keyword" href="/q/IT%E6%A5%AD%E7%95%8C">IT業界</a>に身を置いて四半世紀になってしまいました。その間、膨大な数の「<a data-gtm-click-label="entry-summary-keyword" href="/q/%E8%A8%AD%E8%A8%88%E6%9B%B8">設計書</a>（仕様書）」を書いて来ましたが、未だに悩み・迷いは尽きません。それでも、亀の甲より年の劫とも申しますので、私なりの経験則を「個人」と「チーム」の両観点でまとめてみました。 <a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>稿のテーマは、「主に<a data-gtm-click-label="entry-summary-keyword" href="/q/%E8%A8%AD%E8%A8%88%E6%9B%B8">設計書</a>を想定した、開発ドキュメントの書き方」です。 <a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>稿で前提とする<a data-gtm-click-label="entry-summary-keyword" href="/q/%E8%A8%AD%E8%A8%88%E6%9B%B8">設計書</a>は、<a data-gtm-click-label="entry-summary-keyword" href="/q/EXCEL">Excel</a>やWordで書かれた、フォーマルな（≒納品物になりえる）設計文書、です。したがって、自社サービス開発よりも受託開発、<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A2%E3%82%B8%E3%83%A3%E3%82%A4%E3%83%AB">アジャイル</a>よりもウォータ</p> <a href="https://qiita.com/y-some/items/90651c1e27f7798f87c6" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/1fa3d8f6d29451eed83d5ddae55fede26f59261c/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-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%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDB5LXNvbWUmdHh0LWNvbG9yPSUyMzFFMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPTM4ODNlNTkxOGYyZGRmYTY1M2M5MWRlMTRiOGI5Zjgw%26blend-x%3D142%26blend-y%3D436%26blend-mode%3Dnormal%26txt64%3DaW4gSUJN%26txt-width%3D770%26txt-clip%3Dend%252Cellipsis%26txt-color%3D%25231E2121%26txt-font%3DHiragino%2520Sans%2520W6%26txt-size%3D36%26txt-x%3D156%26txt-y%3D536%26s%3D380f9d76571407ec0525e878405e951c" alt="エンジニア歴20数年の私が、設計書を書く際に心がけていること - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-357786134"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/y-some/items/90651c1e27f7798f87c6" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20180215#bookmark-357786134" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/02/15</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" 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