Workflow-Design

Here’s an example of a Business Event Flow Diagram tailored to a reservation system, illustrating how a typical business event (e.g., “Customer makes a reservation”) flows through the organization: flowchart TD %% Event Trigger Customer[Customer Initiates Reservation] --> SubmitRequest[Submit Reservation Request] SubmitRequest --> ValidateInputs[Validate Input Data] ValidateInputs -->|Valid| CheckAvailability[Check Resource Availability] ValidateInputs -->|Invalid| RejectRequest[Reject Request with Error] CheckAvailability -->|Available| ProcessReservation[Process Reservation] CheckAvailability -->|Not Available| NotifyUnavailability[Notify Customer of Unavailability] ProcessReservation --> CreateEvent[Create Business Event: ReservationCreated] CreateEvent --> NotifyCustomer[Send Confirmation Notification] CreateEvent --> UpdateDB[Update Reservation Database] NotifyCustomer --> End[End] UpdateDB --> End[End] NotifyUnavailability --> End[End] RejectRequest --> End[End] Key Elements: Event Trigger: The workflow begins when the customer initiates the reservation request. ...

Here’s an example of a Flowchart that represents a simple workflow for a reservation system, illustrating key steps in the booking process. graph TD Start[Start] --> EnterDetails[Customer Enters Reservation Details] EnterDetails --> CheckAvailability[Check Resource Availability] CheckAvailability -->|Available| ProceedPayment[Proceed with Payment] CheckAvailability -->|Not Available| DisplayError[Display Error Message] ProceedPayment --> ConfirmReservation[Confirm Reservation] ConfirmReservation --> SendNotification[Send Confirmation Notification] SendNotification --> End[End] Explanation of the Workflow: Start: The process begins when a customer initiates a reservation. Enter Details: The customer provides reservation details (e.g., date, time, resource). Check Resource Availability: The system verifies if the requested resource is available. If available, the workflow proceeds to payment. If not available, an error message is displayed to the customer. Proceed with Payment: The customer completes the payment process. Confirm Reservation: The system confirms the reservation after successful payment. Send Notification: A confirmation message (email/SMS) is sent to the customer. End: The workflow concludes.

Below is an example of an Architecture Diagram for our event-driven reservation system, illustrating a microservices architecture. It highlights the relationships between components, external systems, and underlying patterns used. flowchart TB %% External Clients Customer[Customer Frontend] Admin[Administrator Panel] %% Gateway Layer subgraph Gateway[API Gateway] GatewayService[Routing & Security] end %% Service Layer subgraph ServiceLayer[Service Layer] ReservationService[Reservation Service] ResourceService[Resource Catalog Service] NotificationService[Notification Service] PaymentService[Payment Service] end %% Event Handling Layer subgraph EventLayer[Event Handling Layer] EventBus[Wolverine Event Bus] end %% Data Layer subgraph DataLayer[Data Layer] ReservationDB[Reservations Database] ResourceDB[Resources Database] CustomerDB[Customers Database] end %% External Services ExternalNotification[Third-Party Notification System] ExternalPaymentGateway[Third-Party Payment Gateway] %% Interactions Customer --> GatewayService Admin --> GatewayService GatewayService --> ReservationService GatewayService --> ResourceService ReservationService --> ReservationDB ResourceService --> ResourceDB ReservationService --> CustomerDB ReservationService --> EventBus EventBus --> NotificationService EventBus --> PaymentService NotificationService --> ExternalNotification PaymentService --> ExternalPaymentGateway Breakdown of the Diagram External Clients: ...

Below is a Mermaid sequence diagram that showcases how components of our event-based reservation system interact during a typical workflow. This example outlines the process of a customer creating a reservation and includes key components such as the frontend, service layer, Wolverine event bus, and external systems. sequenceDiagram participant Customer participant Frontend participant Service as Reservation Service participant EventBus as Wolverine Event Bus participant ResourceCatalog participant Notification as Notification Service Customer ->> Frontend: Request to create a reservation Frontend ->> Service: Submit reservation details Service ->> ResourceCatalog: Check resource availability ResourceCatalog -->> Service: Availability status Service ->> Service: Validate and process reservation Service ->> EventBus: Publish ReservationCreated event EventBus ->> Notification: Notify customer of confirmation EventBus -->> Service: Acknowledge event publishing Service -->> Frontend: Return confirmation to customer Frontend -->> Customer: Display confirmation details Explanation of the Workflow Customer Interaction: ...

Here’s an example of a State Diagram for a reservation system object. This illustrates the states that a reservation can move through and the transitions triggered by events or actions. stateDiagram-v2 state "Pending" as Pending state "Confirmed" as Confirmed state "Cancelled" as Cancelled state "Completed" as Completed %% State Transitions Pending --> Confirmed: Payment Received Pending --> Cancelled: Customer Cancels Confirmed --> Cancelled: Customer Cancels Confirmed --> Completed: Reservation Period Ends Cancelled --> Pending: Reopen Request Explanation of States and Transitions: States: ...