Step information to be passed in the pre conditions usecase.

Based on current step precondition will run.

Based on boolean returned from precondition usecase, a step will run or be skipped.

Precondition rule will be passed in current step.

Precondition for every step will be executed from a new usecase e.g PaymentPreconditionsUseCase, and rule for that step will be passed in that usecase based on which that usecase will run the preconditions.

Wherever the rule doesn’t exist we will run that step.

Preconditions will have

• Strategy: Task/StepOutput

• Data: cod_amount

• Expression: greater than 0

Every step that can impact upcoming step’s will