Design And Implementation Of Tax Collecting System For Provincial Local Revenue

Tax is the main forms and source of the public finance in our government. How tofairly, justly and reasonably compute the taxpayer’s tax amount payable is the toppriority of the tax work. In order to achieve this objective, Local Taxation Bureau ofHeilongjiang Province puts forward the business requirements of a whole industry taxcollecting system based on computers. It uses computer to verify the tax amount oftaxpayers that meet the conditions of computer tax collecting.In the course of this project, According to the software development lifecycle-requirement analysis, system design and system testing-this paper details thedevelopment process of the project.First it analyzes the existing computer taxcollecting systems and givessuggestions for improvement. Based on the actualsituation of tax quota in Heilongjiang province it gives the detailedrequirementanalysis on business. Then it refines the requirements and designs the architecture anddatabase system of whole industry tax collecting system based on computers inHeilongjiang province. This system realizes the functions on estimation of thebenchmark parameter values, establishment of tax amount payable and supervision ofmunicipal tax situation.At last it uses black box technique to test the systemandcompletesthe whole process of software development.The system adopts the C/S software architecture and uses Sysbase as databasesoftware and PowerBuilder as the development tools. In implementation it usesDataWindow intelligence object, which is a proprietary technology of PowerBuilderdevelopment tools, to improve the efficiency of system development and operation.Based on object oriented method it enhances the software reusability and scalability,and reduce the maintenance work in the future. Through the database index the systemcan execute batch modification, query and analysis on multiple databases at the sametime.Through testing and practical application it proves that this system can make thetaxpayer‘s tax quota more scientifically, reasonably and conveniently, and standardizesand strengthens the tax administration of individual industrial and commercialhouseholds and enterprises. Also it effectively solves the randomness and complexityof tax quota and improves the backward situation of original system. The system will bring the direct economic benefit and social benefit in the process of carrying out taxbusiness of Local Taxation Bureau of Heilongjiang province.