ERD Customer Relationship Management (CRM)
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MermaidBuild the data foundation for tracking customer relationships. This template maps accounts, contacts, leads, opportunities, cases, and campaigns — with keys, attributes, and relationships — so teams can align on how records connect from first touch to closed deal and support.
How to create a ERD Customer Relationship Management (CRM)
To create a ERD customer relationship management (CRM), follow these steps:
01.
Identify entities
Define the core customer-related objects your system needs (e.g., Account, Lead, Contact, Opportunity, Case, Campaign).
02.
List attributes
For each entity, specify what customer information it stores, including data types (int, string, float, datetime) appropriate for each field.
03.
Mark keys
Identify primary keys (PK) for unique record identification and foreign keys (FK) that link related customer data across tables.
04.
Create entity boxes
Draw rectangles for each entity with attributes inside, clearly marking PKs and FKs to show relationships.
05.
Map the customer journey
Determine how entities connect through the sales process — campaigns generate leads, leads convert to contacts, contacts belong to accounts.
06.
Show conversion paths
Illustrate how leads transform into contacts and opportunities, maintaining data lineage through foreign key relationships.
07.
Add relationship lines
Connect entities with proper cardinality notation (||--o{ for one-to-many) showing how accounts relate to contacts, opportunities, and cases.
08.
Review & share
Share the diagram for CRM implementation, sales process optimization, integration planning, or data migration projects.
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