{"id":1256,"date":"2025-12-26T14:57:02","date_gmt":"2025-12-26T19:57:02","guid":{"rendered":"https:\/\/blog.data-principles.com\/?p=1256"},"modified":"2026-01-06T17:48:33","modified_gmt":"2026-01-06T22:48:33","slug":"data-model-conversion-conceptual-design-to-logical-design-using-an-er-model","status":"publish","type":"post","link":"https:\/\/blog.data-principles.com\/index.php\/2025\/12\/26\/data-model-conversion-conceptual-design-to-logical-design-using-an-er-model\/","title":{"rendered":"Data model conversion: Conceptual design to logical design using an ER model"},"content":{"rendered":"\n

By Pete Stiglich<\/em><\/p>\n\n\n\n

Outlines common approaches for transforming a conceptual data model into a logical data model. One approach expands the CDM by identifying additional entities, fully attributizing them with business nomenclature, resolving many\u2011to\u2011many relationships, formalizing keys, handling subtypes, and applying abstraction and normalization. Another approach keeps the LDM closer to an attributized CDM and postpones some resolutions until the physical model, allowing multiple physical manifestations (OLTP vs. dimensional) while maintaining metadata relationships. It emphasizes disciplined steps to avoid semantic drift.<\/p>\n\n\n\n

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Links to third-party articles and resources are provided for informational purposes only. Data Principles, LLC does not claim ownership of, nor imply endorsement by, the referenced organizations.<\/em><\/p>\n\n\n\n

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Pete Stiglich: Trusted Expert in Data Architecture & Modeling<\/strong><\/p>\n\n\n\n

Pete has over 30 years of data architecture, data management, and analytics experience, most of that time as a consultant in industries such as government, finance, healthcare, insurance, and more. He is an industry thought leader in data architecture and data modeling and has developed and taught many courses on these topics. Pete enjoys helping clients solve complex data problems, leveraging proven approaches such as \u201cModeling the business before modeling the solution\u201d which provides a benefit to clients that many IT professionals miss.<\/p>\n<\/div><\/div>\n\n\n\n