+-------------------+
                  | Customer Service  |
                  +-------------------+
                          |
                          v
                  +-------------------+       +------------------+
+------------->   |  Order Service    |<------| Product Service  |
|                 +-------------------+       +------------------+
|                       |                       |
|                       v                       v
|               +-------------------+    +------------------+
|               |  Shipping Service |    | Supplier Service |
|               +-------------------+    +------------------+
|
|
+--------------------------+
                           v
                  +-------------------+
                  | Employee Service  |
                  +-------------------+