26 specimens
ER Diagram catalogue
ER Diagram
templates.
Entity-relationship diagrams describe the shape of your data: tables, columns, primary and foreign keys, cardinalities. Use them when planning a new schema, documenting an existing one, or arguing about whether a relationship should be one-to-many or many-to-many.
Fig. 01
ER Diagram→OAuth 2.0 AuthorizationAn ER diagram template mapping the OAuth 2.0 authorization code grant flow, ideal for developers and architects documenting authentication systems.Fig. 02
ER Diagram→CI/CD PipelineA ready-to-use ER diagram template mapping CI/CD pipeline entities from code commit to production deployment, ideal for DevOps engineers and architects.Fig. 03
ER Diagram→User Authentication FlowA ready-to-use ER diagram template mapping login, session, and logout sequences, ideal for developers and system architects designing secure authentication systems.Fig. 04
ER Diagram→Microservices ArchitectureA ready-to-use ER diagram template mapping microservices boundaries, entities, and communication patterns, ideal for architects and backend engineers.Fig. 05
ER Diagram→Database MigrationA ready-to-use ER diagram template for database architects and engineers planning schema changes that require zero-downtime migration strategies.Fig. 06
ER Diagram→Event-Driven ArchitectureA ready-to-use ER diagram template mapping producers, brokers, and consumers in event-driven systems, ideal for architects and backend engineers.Fig. 07
ER Diagram→Kubernetes DeploymentA ready-to-use ER diagram template mapping Pods, Services, Ingress, and Rollouts for DevOps engineers and platform teams documenting Kubernetes architectures.Fig. 08
ER Diagram→REST API Request LifecycleA ready-to-use ER diagram template mapping the full REST API request lifecycle from client call through middleware, server logic, and database and back, ideal for backend developers and architects.Fig. 09
ER Diagram→Git Branching StrategyA ready-to-use ER diagram template mapping Git branching workflows—ideal for dev teams documenting GitFlow or trunk-based strategies.Fig. 10
ER Diagram→E-commerce Checkout FunnelA ready-to-use ER diagram template mapping every entity and relationship from shopping cart to order confirmation, ideal for developers and UX architects.Fig. 11
ER Diagram→Customer Feedback LoopA ready-to-use ER diagram template mapping the collect, analyze, act, and communicate stages of a customer feedback loop for product and CX teams.Fig. 12
ER Diagram→A/B Testing WorkflowA ready-to-use ER diagram template mapping the A/B testing lifecycle—hypothesis, design, ship, and decide—ideal for product managers and data teams.Fig. 13
ER Diagram→User Onboarding FlowA ready-to-use ER diagram template mapping the data entities and relationships behind a new user onboarding flow, ideal for product managers and backend developers.Fig. 14
ER Diagram→Product Launch PlanA structured ER diagram template mapping Beta, marketing, GA, and post-launch entities, ideal for product managers and launch teams planning a release.Fig. 15
ER Diagram→Feature RolloutA ready-to-use ER diagram template mapping feature rollout stages—internal, beta, percent rollout, and GA—ideal for product and engineering teams.Fig. 16
ER Diagram→Hiring PipelineA ready-to-use ER diagram template mapping every entity and relationship in a hiring pipeline, ideal for HR teams, recruiters, and ATS developers.Fig. 17
ER Diagram→Customer Support TriageA ready-to-use ER diagram template mapping ticket intake to resolution, ideal for support engineers, DBAs, and CX teams designing helpdesk systems.Fig. 18
ER Diagram→Lead Qualification (BANT)An ER diagram template mapping Budget, Authority, Need, and Timing entities for sales teams and CRM architects modeling lead qualification workflows.Fig. 19
ER Diagram→Code Review ProcessThis ER diagram template maps the full code review lifecycle from PR open to merge, ideal for engineering teams documenting their development workflows.Fig. 20
ER Diagram→Sales PipelineA ready-to-use ER diagram template mapping every entity and relationship in a sales pipeline, ideal for CRM developers, sales ops teams, and database architects.Fig. 21
ER Diagram→Invoice Approval WorkflowA ready-to-use ER diagram template mapping invoice receipt, validation, approval, and payment entities for finance teams and business analysts.Fig. 22
ER Diagram→ETL Data PipelineA ready-to-use ER diagram template mapping ETL pipeline entities and relationships, ideal for data engineers and architects designing data workflows.Fig. 23
ER Diagram→Machine Learning WorkflowA ready-to-use ER diagram template mapping ML pipeline entities—data prep, training, evaluation, and deployment—ideal for data scientists and ML engineers.Fig. 24
ER Diagram→Project KickoffA ready-to-use ER diagram template mapping project charter, stakeholders, plans, and communications for project managers and business analysts.Fig. 25
ER Diagram→Data Warehouse SchemaA ready-to-use ER diagram template illustrating a data warehouse star schema with fact and dimension tables, ideal for data engineers and BI architects.Fig. 26
ER Diagram→Analytics Event TrackingA ready-to-use ER diagram template mapping the full analytics event tracking pipeline from client emit to dashboard, ideal for data engineers and product analysts.
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