Enterprise AnalysisWork Flow DiagramsPowerPoint PresentationSlide 4Slide 5Slide 6Slide 7Enterprise Object ModelSlide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Enterprise Analysis•Understand the organizational context•Functional areas/management levels affected by the system•Overview of the business objects and processes•Organizational structure chart•Workflow diagrams•Enterprise object modelWork Flow Diagrams•Model Internal and external entities and flow of data (typically in documents) between them–simple technique for identifying the high-level processes•Workflow between internal entities, between internal and external entities•No workflow between external entities•Different from DFDs–WFD: require only nouns–DFD: both nouns and verbs (process)•User-level WFD –models entities and workflows described by single user–presents a single user’s view point but includes more than one entity and can model workflows across functional areas–discover formal as well as informal flows of information•Combined user level WFD–integrated view of all entities and workflows–identify inconsistencies in user-level WFDs–reveals redundancies, inefficiencies–can be used to identify high level business processes•each internal entity performs a process to generate flows to and process flows from external entities. •flows between internal entities can also indicate a major process–can be used to define system boundaries•Organizational level WFD–collapse all internal entities in combined user-level WFD, into a single internal entity–external entities and the flow of information between the organization and external entities–Context level DFDCustomerSalesAgentSales orderProcessingClerkWorkflow diagrams model internal and external entities and work flowsSales Order FormOrdered ItemsInvoiceCustomer1.0Take Order2.0ProcessOrderDataflow diagrams model the processes performed by internal entities.Customer data, ordered items dataInvoice DataSales Order DataEnterprise Object ModelBusiness Objects–roles (teacher), places ( warehouse)–things (items, books)–transactions (payment, registration)–events (graduation)•Data driven approach–What objects are made up of?•Event driven approach–What an object doesEvery entity and workflow in combined user-level WFD is likely to be a candidate classClasses are grouped into subjects to form enterprise Object model“ Subject” - group of related classBebop Records is a mail-order company that distributes CDs and tapes at discount prices to record club members. When an order processing clerk receives an order form, he or she verifies that the sender is a club member by checking The Member Master file. If the sender is not a member, the clerk returns the order alongwith the membership application form. If the sender is a member, the clerk verifies the order item data by checking the Item Master file. Then the clerk enters the order data and saves it to Daily Orders file. The clerk also prints an invoice and shipping list for each order, which are forwarded to Order Fulfillment1. Create a user-level workflow diagram to document the entities and workflows.2. List the classes. Create an enterprise object model that groups these classes into following subjects:things,roles, organizational unitsOrderProcessingClerkOrderFulfillmentClub MemberNon-MemberInvoiceShipping ListOrder FormMembershipApplication FormReturnedOrder FormBebop Records WFDOrder FormEnterprise Object ModelThings:–Membership application forms–Order form–Invoice–Shipping ListOrganizational Units:–Order Processing–Order fulfillmentRoles :–Order Processing clerk–Club Member–Non-Member–Order Fulfillment ClerkDelta Products Corporation is a major vendor of office supplies, furniture and equipment. Delta’s sales representatives call on customers to take orders. The sales rep write up the orders and turn them in to a sales order processing (SOP) clerk at the regional center. If the order items are in stock, the SOP clerk prepares a picking slip and packing list for each order. If any of the ordered items are out of stock, the SOP clerk completes an out of stock Notice forms, which notes the number of customer requiring the items and forwards it to Purchasing. A Purchasing clerk then completes a purchase order,which is mailed to a supplier. The SOP clerk notes back-ordered items on the customer’s order and forwards a copy of annotated customer order to Accounts receivable, where a A/R clerk prepares an invoice and sends it to the customer. The SOP clerk also forwards a picking slip and packing list to the warehouse, where stock price pickers fill the order,placing ordered items into boxes alongwith the packing list. The boxed items and packing list are held for delivery, usually via UPS.1. Create a user level work flow diagram.2. Analyze the workflow diagram to identify major processes.3. Create an organizational-level work flow diagram4. Create an enterprise object model that group classes in Delta’s order processing system into subjects based on functional areas (e.g..SOP,Purchasing, A/R,etc)SalesRepSOPClerkPurchasingAccountReceivableWarehouseCustomerUPSSupplierPacking ListPacking Slip/Packing ListPurchaseOrderOut of StockNotice FormWritten Sales OrderSales CallsOrdersInvoiceAnnotatedCustomer OrderDelta Products WFDMajor Processes•Take orders•Process Orders•Bill Customers•Fill Orders•Ship Order•Purchase StockOrganizational level Workflow Diagram:CustomersUPSSupplierSales OrderProcessingInvoicePacking ListSales CallsOrder Purchase OrderEnterprise Object ModelSales Order Purchasing Accounts OrderProcessing Receivable Fulfillment- Sales Rep - Out of stock - Sales Order - Picking List- Customer Notice Form - Invoice - Packing Slip- SOP Clerk - Purchasing Clerk - Customer - Stock Picker- Sales Order - Purchase Order - Annotated Cust. - Item- Picking slip - Supplier Order - Shipping- Packing list - Item - Accts. Receivable - Warehouse- Out of stock Clerk Notice form - Item- Item(A) Workflow Diagram(B) Enterprise Object Model -- group objects into subjects based on1. Process Time Cards2. Prepare PaychecksWorkstudy employees in each university dept. provide their secretary with their weekly timecards. The dept. secretary accesses the employees hourly rate from Employee Payroll file and prepares a weekly time sheet that lists each employee’s name, SSN, total hours worked