Development cycle


[1] by identifying the problems: to develop a proposal for a new information system began a formal request by the problems of existing systems used to operate a mail order and wholesale. Still contains the manuscript, the detailed information about the current object in the field of trade, may be re-classified as one of the three zones., The ability of IT systems, and in this case, re-engineering of business processes, but a by-product. These include: information is the organization of resources is treated with the utmost attention to other resources. This is the cost for the processing of information [2] Feasibility Study connected. The need for a new system is clearly defined in order to identify the problem. Identify customers have not changed most of the business process support systems for years. Others claimed. To improve performance, decided to order some of the key business processes. If two different functions are performed by different people, there are two independent systems in processing plants operate in two different terminals, is seen as a problem. The proposed system is one of the actors presenting the new role of business and of course the terminal and the computer system to support the new feature. [3] for information about the proposed system: for each application to redesign the candidates, in the phase of problem definition, a process is defined with each of them assigned to identify, has been studied in detail
Determine the advantages and disadvantages of the business, operating costs, efficiency, problems arose and the specific functional requirements and technical capabilities that the current system to results.A detailed definition of functional systems and operations of the flow of information across organizational functions in the following way to achieve this existed, in one example, seats}: customer enters an order on how to use the payment method. When a customer order or collected a list of event data types. Information in accordance with the application directory or the contract required information includes a customer name, address, products ordered, shipping address, credit card information. The information in the archives of our customers securely stored environment.b) Sales: are contracts for the sale functions for the transfer function, accounts and manage accounts and send goods to the shops. c) processing customer orders: This includes all activities associated with the processing of customer orders and inventory management company, the current order system so that each employee directly from the keyboard, can simplify the process lifecycle management and improves customer orders. Service and satisfaction for this feature: Run a line of credit to keep detailed records, advise customers to order products directly get in touch with the delivery of goods and invoicing. Analysis of sales and payment history accounts, a valuable tool for This function is responsible for the production of customer invoices, requests for payments for goods or services. Information about this function (for customers and inventory) is produced and hosted generates invoices, usually printed information on a continuous load, depending on the sale of receivables stationery.To request for a public sale. e) Accounting: Financial Accounting is the process of documentation of transactions in connection with the organizations that produce almost all of these materials. This feature also serves as a control mechanism for processing the transaction. Records can be analyzed to provide information about the company’s results in the long term. f) Work:
To receive and pay the wages of workers with the necessary information on taxes and other deductions. To keep them in a manual system for preparing data for payroll and payroll is a huge undertaking. Although tedious and repetitive, it is important task.g) Transaction Processing:
Easily enter customer orders as well as copies of previous orders, delivery and billing address elements automatically turns the partially receipth later delivery), an open consultation:
Send items of information stored, including the current year so far, or all customers, credit reports, records of securities: i) file returns: generating a return of damaged goods and freight, the return of the loan account and generate automatically entries.j payments accounting) and revenues: they can be linked to sales orders or purchase orders. Receipts are the amounts received from debtors. Payments are made to pay off business debts with creditors (suppliers of the company) [4] analysis of the system. Current systems work developed on a commercial basis constitutional society. Proceedings of structures in central and design. Take stock of many of these legacy systems to manage orders, notes and files to individual customer accounts and track merchandise from back payments, but must also transmit information about inventory levels, a relational database. As the transactions directly to a fundamental change in the transition to the importance of information exchange that are not part of the course-based applications to business processes easier to grasp new systems to customer information made [5] The project, part of the system, the technical components and functional elements to be re-evaluated to determine how the system is compatible must be identified in the analysis phase. Coding (if any) information after an inspection is made and debugging.In In this case, the prototype in a simulated environment is a real personal, but found no proven effect on the actual behavior of the old system and still allows the system to safe and appropriate use of information displayed, and the need to act in the future. [6] on the implementation and evaluation: The evaluation phase is completed, all of this, and the final evaluation is to ensure that the installation and use of real data out.First new hardware and software, creating a complete system should be present, plays no role in the operation of additional studies done on all the subsystems in a placement intended. Staff of matter in which the employee participated in the evaluation, but everything else on this level, you can use it is not close to “school”. The new information system should be parallel to work effectively with the past, the company’s operations to the new system to ensure that the operation can not continue to operate if the system detects unexpected complications can be implemented in the last stage. The simultaneous application to be effective in this situation because it is the safest solution, where the old and new systems simultaneously, and the results of the old system is a benchmark that is comparable with the results of a new system for determining the reliability and accuracy the new system [7] is used interview. Performance of the new system must be supervised by the team installing the first weeks of work, if mistakes in planning the operations and if you go to all the original requirements. Set before the installation of recording devices in a continuous power monitoring systems are only used for employees of the company, and any new requirements – support for the renovation / maintenance management and operation service.Formal persons involved must be made anytime, systems development, testing and implementation .