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Overview.The process is designed to handle the fundamental interaction with customers and suppliers, and also deals with stock control. peak and defrayment data is recorded.For clarity I brace noted down the pursuanceHead Office consists of- convergence ManagementfinanceSales A Local start consists of-A Local OfficeWarehouseDistributionPreliminary List of Entities.In my top-down analysis of the metropolitan Pharmaceuticals scenario, I have first attempt to produce a preliminary list of candidate entities. These are as follows nodeclient dictate customer InvoiceSales-Occurs completely once so isnt includedProductProduct sendprovider supplier InvoiceFinance-Occurs only once so isnt includedLocal limbLocal Office-Is affair of Local Branch so isnt includedDistribution-Is go against of Local Branch so isnt includedWarehouse-Is unwrap of Local Branch so isnt included depotThe following page shows my list of probable entitiesList of Probable Entities.CustomerCustomer OrderCusto mer InvoiceProductProduct OrderSupplierSupplier InvoiceLocal BranchStock translations and expected requisite attributes for the above entitiesSince the system analysis is focused on dealing with customers, suppliers and intervention products, I have included all entities which I believe get in in these activities.CustomerDescriptionRetail chemist shops or pharmacies associated with shops, hospitals or medical practices. All require a supply of products from the Metropolitan Pharmaceuticals system.AttributesCustomer ID-Identifying attributeName look atTelephone betFax Numbere-mailContact NameDelivery AddressCredit military ratingCustomer OrderDescriptionAn order placed by the Customer requesting the delivery of product.AttributesOrder Number-Identifying attributeCustomer IDProduct ID standardCustomer InvoiceDescriptionAn invoice send to the Customer from the Finance department, requesting payment for the delivered goods.AttributesInvoice Number-Identifying attributeOrder IDDateni tty-gritty to be paidProductDescriptionAn item that is supplied by the Metropolitan Pharmaceuticals system.AttributesProduct ID-Identifying attributeNameDescriptionCategory-(A,B,C or D)Stock Item-(Yes or No)Product OrderDescriptionAn order that is sent to both the Supplier (if it is a non-stock item) or a Local Branch (if it is a stocked item), requesting the delivery of a product to a customer.AttributesOrder Number- Identifying attributeDateProductCustomer IDQuantitySupplierDescriptionA company that is able to supply a figure of products to Metropolitan Pharmaceuticals. Metropolitan Pharmaceuticals does not manufacture any of its products, but instead, uses suppliers who either produce or procure the products.AttributesSupplier ID-Identifying attributeNameAddressTelephone NumberFax Numbere-mailSupplier InvoiceDescriptionAn invoice that is sent by the supplier to Metropolitan Pharmaceuticals requesting payment for the product it has provided.AttributesInvoice Number-Identifying a ttributeDateAmount to be paidLocal BranchDescriptionA local spill that contains a Local Office, a Warehouse and a Distribution Center.AttributesBranch ID-Identifying attributeNameAddressTelephone NumberStockDescriptionA full inventory of products that are held in stock at the local branch.AttributesStock ID-Identifying attributeProduct IDLocation-eg. Shelf buildQuantityRe-Order levelEntity Links or Dependencies.Now to identify which pairs of entities have an association between themselves.Customer is related to Customer OrderapologyCustomer places Customer OrderCustomer Order is placed by Customer