1. SPECIFICATION of an ORDER PROCESSING database: Consider the following set of data requirements for an ORDER PROCESSING COMPANY (OPC) in which orders for items are placed by customers and shipped from warehouses. The order processing DB has customers, each identified by a unique customer number, first and last name, city, and ZIP code. Each warehouse of the company is identified by a unique warehouse number, city, where it is located, and ZIP code. Each warehouse ships one or more orders. The ship date when an order is shipped from a warehouse is recorded. Assume that an order can be shipped from several warehouses Each item listed in an order is identified by a unique item number, an item name, and unit price e Each order is placed by a customer and is given a unique order number. Each order contains specified quantities of one or more items. The total dollar amount of an order is recorded. Each order has an order date, when an order was placed; and a date of receipt. Make the conceptual design of the ORDER_PROCESSING database. This includes (1) The Initial Conceptual Design (ICD) and (2) The design of the ER schema for it. I.., when designing the ER schema make the initial conceptual design and the necessary refinements after that. Specify the key attributes of each entity type and structural constraints (both cardinality ratios and total/partial participation) on each relationship type. Note any unspecified requirements .(10 pts) The initial conceptual design of your ER schema (for reference, you may Two ER diagrams of your ER schema resulted after all the design refinements ha and make appropriate assumptions, if needed, to make the specification complete. see the ICD of the COMPANY database, p. 11-12 in the notes for Ch. 7) been completed (80 pts) ER diagram with structural constraints using I, M, N (written in next to a relationship type rhombus /diamond) for cardinality ratio and double and single lines for total and partial participation. (10 pts) Another ER diagram version, where the structural constraints are expressed using the alternative -(min, max) notation (as on p. 23 in the notes for Ch. 7)