Data Modeling & Schema Design Explained | How Databases Are Planned Before Coding | Day 13

In Day 13 of the Software Architecture & System Design Fundamentals series, we explain how developers plan database structure before building an application. This session covers data modeling, database schema, entities, fields, data types, constraints, validation, relationships, primary key, foreign key, embedded vs reference data, good schema design, and normalization. It also explains these concepts using practical examples like student management, admission forms, attendance systems, batches, courses, payments, and library records. Topics covered: What is data modeling? Why database planning is important What is database schema? Entity, field and attribute Choosing the right data type Constraint vs validation Primary key and foreign key One-to-one, one-to-many and many-to-many relationships Embedded data vs reference data Good schema design Normalization 7-step schema design process Key takeaway: A good database starts before coding — with clear planning of entities, fields, relationships, rules, and schema design. #DataModeling #SchemaDesign #DatabaseDesign #DatabaseSchema #SystemDesign #SoftwareArchitecture #BackendDevelopment #PrimaryKey #ForeignKey #Normalization #MongoDB #SQL #NoSQL #FullStackDevelopment #MERNStack #WebDevelopment #JASIQLabs #RealWorkStudio