{"id":23882,"date":"2025-09-15T09:00:00","date_gmt":"2025-09-15T07:00:00","guid":{"rendered":"https:\/\/conferences.isaqb.org\/software-architecture-gathering\/?p=23882"},"modified":"2025-09-15T10:06:35","modified_gmt":"2025-09-15T08:06:35","slug":"why-crud-is-equally-unsuitable-for-fairy-tales-and-businesses-an-article-by-golo-roden","status":"publish","type":"post","link":"https:\/\/conferences.isaqb.org\/software-architecture-gathering\/why-crud-is-equally-unsuitable-for-fairy-tales-and-businesses-an-article-by-golo-roden\/","title":{"rendered":"Why CRUD Is Equally Unsuitable for Fairy Tales and Businesses \u2013 An Article by Golo Roden"},"content":{"rendered":"\t\t
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Blog<\/h2>\n\t\t\t\t\t\t\t\t\t\t\t\t

iSAQB Software Architecture Gathering 2025\u200b<\/p>\n\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"Golo\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Golo Roden<\/a><\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Founder and CTO of the native web GmbH<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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Published on September 15, 2025<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Why CRUD Is Equally Unsuitable for Fairy Tales and Businesses<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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An article by Golo Roden<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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A fairy tale in CRUD shows how technical language and technology collide because not everything can be represented using Create, Read, Updated, and Delete.<\/i>\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Once upon a time, there was a beautiful princess. Every year, she updated<\/i> her age, and after a few years, she created<\/i> the desire to discover the world and updated<\/i> her location to the big, dark forest. However, the evil wolf created<\/i> a meeting with her there and deleted<\/i> her. The royal couple then updated<\/i> their mood to \u201csad\u201d and created<\/i> a task for the hunter. He also updated<\/i> his location to the big, dark forest, arranged a meeting with the wolf, deleted<\/i> him \u2013 and then wanted to undelete<\/i> the princess \u2013 but in CRUD-based systems, there is no undelete<\/i>.

\n\nThis means that instead, the story would have to be retold and changed so that the wolf no longer deletes<\/i> the princess, but updates her isDeleted<\/code> flag to true<\/code>. Admittedly, this does not improve the fairy tale: it is already absurd, sounds rather strange, and is probably more likely to disturb people than to tell them an exciting story.\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Why the fairy tale sounds so strange\n<\/b><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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However, this deliberately exaggerated summary is much more than just a joke. It illustrates what happens every day in many software projects: technical language and specialist language diverge. In the domain, concrete things with meaning happen \u2014the wolf eats<\/i> the princess, the hunter rescues<\/i> her\u2014 while our systems reduce the same processes to the four basic technical operations of create<\/i>, read<\/i>, update<\/i>, and delete<\/i> (CRUD for short). Technically relevant verbs disappear behind generic processing steps.

\n\nHowever, this divergence has far-reaching consequences:

\n\n\u2022\tLoss of meaning:<\/b> An update<\/i> says nothing about what technical change has occurred, let alone why it happened. Was a contract extended or an account blocked? Was a payment reversed or a limit adjusted? Specialist departments do not recognize their world in CRUD language.

\n\u2022\tLoss of history:<\/b> Overwriting states obscures traces. How did a state come about? What sequence led to an error or success? Audits, root cause analyses, and forecasts suffer when the past is not explicitly documented.

\n\u2022\tMisconceptions and workarounds: <\/b>Where deletion<\/i> is not technically permissible, soft deletes with isDeleted<\/code> flags are created. Where corrections are necessary, an undelete<\/i> is fantasized \u2013 or special paths are created that further dilute the semantics.

\n\u2022\tCommunication breakdown between business and IT:<\/b> When developers talk about updates<\/i> while business users talk about cancellations<\/i>, returns<\/i>, or escalations<\/i>, the likelihood of misunderstandings \u2013 and thus of wrong decisions \u2013 increases.

\n\nIn short: CRUD is a technical abstraction that obscures the technical reality. It is convenient for tables, but it lacks meaning.\n<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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A different perspective: events instead of mere state changes<\/b><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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This is where event sourcing comes in, an alternative concept for data persistence. Instead of always saving the current state and regularly overwriting it with updates, event sourcing records the events that led to this state over time \u2013 in the language of the domain.

\n\nIn the fairy tale, these would be events such as: \u201cPrincess entered forest,\u201d<\/i> \u201cWolf met princess,\u201d<\/i> \u201cWolf ate princess,\u201d<\/i> \u201cHunter killed wolf,\u201d<\/i> \u201cPrincess was freed,\u201d<\/i> and so on. Each event is an immutable fact and remains permanently preserved. The current state (such as the princess still being alive or alive again, or her parents missing her) is a projection based on the sequence of these facts.

\n\nThis approach offers tangible benefits:

\n\n\u2022\tTransparency and traceability:<\/b> Every change can be traced back to a specific date and cause. You can check at any point in time why a system is the way it is today.

\n\u2022\tClear semantics:<\/b> Events have technical significance. Instead of generic updates, you see contract renewals<\/i>, cancellations<\/i>, role changes<\/i>, incoming payments<\/i> \u2013 exactly the terms that specialist departments think and speak in.

\n\u2022\tCorrections without falsifying history:<\/b> Errors are not made \u201cinvisible\u201d by retroactive manipulation, but are corrected by compensating events. This ensures the integrity of the data line.

\n\u2022\tBetter analyses:<\/b> Event streams map behavior over time. This is the basis for process analysis, anomaly detection, and predictions \u2013 and thus a solid foundation for applications in the field of artificial intelligence.

\n\u2022\tDecoupling and evolution:<\/b> Events are excellent integration points. Other systems can dock without disrupting the core \u2013 a central component of modern, networked architectures.

\n\nFor more details on how to design and develop software using this approach, visit cqrs.com. If you are particularly interested in the interaction with artificial intelligence \u2013 from event recording and projections to features for machine learning models \u2013 then we recommend reading eventsourcing.ai.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Why we stick with CRUD despite everything<\/b><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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The fact that CRUD is so widespread despite everything has less to do with technical suitability than with habit and tool history. Relational databases, OR mappers, and many frameworks favor a view primarily focused on the status quo. This is sufficient for simple data collection and efficient in the short term. However, with increasing complexity\u2014multiple processes, cross-connections, regulatory requirements, analytical use\u2014the advantage is lost: semantics disappear in the code, and the system becomes difficult to explain, test, and change.

\n\nThe fairy tale analogy sums it up perfectly: we force a technical story into four technical verbs \u2013 and lose sight of the actual story in the process. The same thing happens in real systems, only more subtly. \u201cCustomer cancels order\u201d<\/i> becomes an update<\/i>, \u201crole is delegated\u201d<\/i> becomes an update<\/i>, \u201crisk is reassessed\u201d<\/i> becomes an update<\/i>. In the end, a state remains \u2013 but the knowledge of how and why it came about is lost.

\n\nYour DSL and tool of choice will depend on your unique context. What type of diagram you want, where you want to display it, whether you need automation, whether you need multiple users, etc.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Event sourcing at the Software Architecture Gathering<\/b><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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If you would like to see the complete argumentation, concrete patterns, and practical implementation tips, I cordially invite you to the iSAQB's Software Architecture Gathering. There, in my presentation \u201c... and Then the Wolf DELETED Grandma,\u201d<\/u><\/b> I explain in detail why CRUD is equally unsuitable for fairy tales and for companies, where exactly the friction losses occur, and, above all, how event sourcing resolves these breaks. It's about language, models, and architecture\u2014and how to design systems that remain explainable, testable, and expandable for both business users and developers.

\n\nI will discuss typical objections (\u201cIsn't that too costly?\u201d, \u201cHow do we migrate?\u201d, \u201cHow do you read efficiently?\u201d, etc.), show why projections are not a stopgap solution but a design tool, and why events form a robust basis for analytics and AI. The fairy tale remains the leitmotif \u2013 the focus is on the technical consequences.

\n\nI would be delighted to meet you in person at the Software Architecture Gathering in Berlin \u2013 and to discuss together how we can finally tell stories in software using the right verbs again.

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The original version of this article was published in German under the title \"Warum CRUD f\u00fcr M\u00e4rchen und Unternehmen gleicherma\u00dfen ungeeignet ist\"<\/u> on Heise.<\/b><\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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More from the speaker<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u2026 and Then the Wolf DELETED Grandma (Session by Golo Roden)<\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Golo Roden illustrates why CRUD oversimplifies business processes and fairy tales alike, and how event sourcing preserves meaning, traceability, and actionable insights in software systems.<\/p>\n","protected":false},"author":201909760,"featured_media":23885,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1364],"tags":[1487,1716,1712,1545,1709,1713,1718,1543,1708,1717,1710,1435,1444,1546,1715,1711,1714],"post_folder":[],"yoast_head":"\nWhy CRUD Is Equally Unsuitable for Fairy Tales and Businesses \u2013 An Article by Golo Roden<\/title>\n<meta name=\"description\" content=\"Discover why CRUD oversimplifies processes and how event sourcing preserves meaning, traceability, and actionable insights in software systems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/conferences.isaqb.org\/software-architecture-gathering\/why-crud-is-equally-unsuitable-for-fairy-tales-and-businesses-an-article-by-golo-roden\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why CRUD Is Equally Unsuitable for Fairy Tales and Businesses \u2013 An Article by Golo Roden\" \/>\n<meta property=\"og:description\" content=\"Discover why CRUD oversimplifies processes and how event sourcing preserves meaning, traceability, and actionable insights in software systems.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/conferences.isaqb.org\/software-architecture-gathering\/why-crud-is-equally-unsuitable-for-fairy-tales-and-businesses-an-article-by-golo-roden\/\" \/>\n<meta property=\"og:site_name\" content=\"Software Architecture Gathering 2026\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-15T07:00:00+00:00\" \/>\n<meta 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