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Understand the system. Move the work forward.

From your first day in a codebase to the next architectural decision. Put relationships, source and engineering questions in the same picture.

From entry point to supporting code

The checkout entry point reaches a service, its payment and order dependencies, a validation contract and a test. Lines illustrate static relationships, not runtime execution.

Entry pointcheckout.test.ts
01
Checkout servicecheckout-service.ts
02
Payment gatewaypayment-gateway.ts
03
Order moduleorder-service.ts
04
Validation contractvalidation.ts
05
Related checkscheckout.test.ts
06
Selected module · Static relationships · Supporting checks
An import is a directed relationship

checkout-service.ts imports the payment, order and validation modules. Dependents traverses the same relationship in the reverse direction.

checkout-service.tsImports these modules
01
payment-gateway.tsPayment adapter
02
order-service.tsOrder model
03
validation.tsValidation contract
04
Dependencies follow outgoing imports; dependents look back toward consumers.
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