{"id":9369,"date":"2021-03-25T10:31:17","date_gmt":"2021-03-25T10:31:17","guid":{"rendered":"https:\/\/expleoacademy.com\/de-de\/glossar\/explanation\/stable-dependencies-principle\/"},"modified":"2025-12-30T10:03:16","modified_gmt":"2025-12-30T10:03:16","slug":"stable-dependencies-principle","status":"publish","type":"explanation","link":"https:\/\/expleoacademy.com\/de-de\/glossar\/erklaerung\/stable-dependencies-principle\/","title":{"rendered":"Stable Dependencies Principle"},"content":{"rendered":"

Was bedeutet Stable Dependencies Principle?<\/h3>\n

Das\u00a0International Software Architecture Qualification Board<\/a>\u00a0 (ISAQB<\/a>) definiert den Begriff “Stable Dependencies Principle”<\/em> wie folgt:<\/p>\n

Unter Stable Dependencies Principle versteht man “<\/span><\/p>\n

\n

A fundamental principle for designing the structure of software systems (also see Package Principles<\/a>). It demands that frequently changing components depend on more stable ones.<\/p>\n

Part of the volatility of a component is expected<\/a> and naturally implied by its particular responsibility.<\/p>\n

But stability in this context is also a function of incoming and outgoing dependencies. A component that is heavily depended on by others is harder to change and condsidered to be more stable. A component that heavily depends on others has more reasons to change and is considered to be less stable.<\/p>\n

So in regards to dependence, a component with many clients should not depend on one with many dependencies. A single component with both of these properties is also a red flag. Such a component has many reasons to change but is at the same time hard to change.<\/p>\n

Original definitions of the SDP (like Martin-2003) involve a metric I<\/em> of instability<\/a>. Unfortunately, that metric doesn\u2019t capture intended\/inherent volatility, transitive dependence or cases like the red flag mentioned above. But we value the idea of the SDP regardless of how it can be measured.<\/p>\n

The SDP is closely related to the SAP<\/a>. Their combination amounts to a version of the DIP<\/a> (more on this under SAP<\/a>).<\/p>\n

Category: Design-Principle<\/p>\n<\/div>\n

“<\/p><\/blockquote>\n

Wenn Sie \u00e4hnliche Fachbegriffe wie Stable Dependencies Principle<\/strong> nachschlagen m\u00fcssen, schauen Sie doch einfach in unserm umfangreichen Glossar<\/a> nach. Oder durchsuchen Sie unser W\u00f6rterbuch:<\/p>\n","protected":false},"excerpt":{"rendered":"

Stable Dependencies Principle – In unserem Glossar finden Sie eine Erkl\u00e4rung des Fachbegriffs Stable Dependencies Principle<\/p>\n","protected":false},"featured_media":0,"menu_order":0,"template":"","format":"standard","meta":{"footnotes":""},"class_list":["post-9369","explanation","type-explanation","status-publish","format-standard","hentry"],"yoast_head":"\nStable Dependencies Principle - Glossar, Fachbegriff<\/title>\n<meta name=\"description\" content=\"Stable Dependencies Principle - In unserem ISAQB Glossar finden Sie eine Erkl\u00e4rung des Fachbegriffs Stable Dependencies Principle\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/expleoacademy.com\/de-de\/glossar\/erklaerung\/stable-dependencies-principle\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stable Dependencies Principle - 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