I. Project overview
    1. Construction background
        With the strengthening of the government's social management function and the increase of the government's investment in the public sphere, the contradictions between investment and supervision, cost and benefit are becoming increasingly acute, the breadth, intensity and difficulty of project supervision are increasing, the responsibility of supervision is increasing, the difficulty is becoming increasingly prominent, and the government is facing greater difficulties and challenges。
Every year, the government invests a large amount of funds in various urban construction, and the scale of fixed asset investment is unprecedented。The management of investment project involves a large number of graphics and text data. The original manual management makes the work of data search and statistics become increasingly heavy.Traditional documents can not be processed and analyzed and become more valuable information and knowledge, and the use value of data is low。For these problems, the investment management department urgently needs a set of information system for investment management application to solve these problems。
    2. Construction purpose
        To further strengthen the supervision and management of government investment projects，Integrated supervision resources，Standard work procedure，Ensure project quality，Improve investment returns,Manage the operation of the system through electronic supervision，Promote fair and transparent construction of engineering projects，Take the initiative to accept the supervision of the governments at the same level, the competent departments at higher levels and the masses，Ensure the full and correct implementation of laws, regulations and rules，Make the project construction into a sunshine project, clean project, quality project，To create a good environment for the steady and rapid development of our region's economy。 
    3. Scope of application of the system
        Infrastructure invested by government financial funds and all kinds of new, rebuilt, expanded housing construction, civil engineering, equipment installation, pipeline laying, building decoration and other engineering construction projects。Government-invested construction projects mainly include:

Second, system construction content
    The electronic supervision and management system of government investment projects (hereinafter referred to as the system) takes computer network and database technology as the means，Establish a unified database of government investment projects，Comprehensive information on managing government investment projects, Track the planning, establishment and investment progress of each project，Achieve investment project retrieval and inquiry，分析，Classified management。The system includes planning project management, project management, new project management, construction project management, completed project management, construction unit management, auxiliary management, comprehensive search, statistical reports, personnel management, role management, department management and other functional modules，The project information classification, input, retrieval, project screening, project approval and so on are realized，It provides the correct basis for the government functional departments to understand, supervise, manage and lead the decision of investment projects。

Third, system functions
    Target control is carried out according to dynamic control principle, and systematic integrated control principle is used to monitor and manage the whole construction process。With the help of modern information technology and communication technology, the application of information management means to eliminate the constraints of time and space, timely, image, and all-round provision of information reports related to the progress of various projects and statistical analysis information of project group construction, to improve the project management level of the competent construction departments。
    1. Project information base
        According to the government investment construction project implementation status, project nature, project construction area, project investment and construction subject and other different attributes，Build a project information database containing all government-funded construction projects，Realize the management of the basic information of the project，The whole process information from project initiation to project completion is fully displayed，Statistics, summary and analysis of single project and multi-project/programme are also realized，To present the progress and health of the project at a glance to the management of the construction authority。
    2. Pre-project work management
        According to the capital construction procedure of the construction project, various types of preliminary work content and completion time requirements are customized to realize the management of the plan and actual completion results of the preliminary work, and provide time limit reminders to improve the monitoring degree of the progress of the construction project。
    3. Demolition management
        To realize the demolition information management of construction projects with demolition requirements。Including the management of the scope of demolition, the number of demolished households, the nature of land and other basic information;To manage the progress of demolition and relocation;Planning and actual management of demolition expenses。
    4. Bidding and contract management
        According to the regulations of the bidding administration and the actual situation of the project, the bidding list shall be formulated, and the bidding plan shall be prepared。Conduct specific content management for each bidding, including: bidding time, contract content, contract method, type of undertaking, information on winning the bid, bidding documents, etc。
        Comprehensively manage contracts signed during project implementation through integration with bidding information。From the perspective of professional contract management, it provides comprehensive management of contract establishment, bidding and bidding information, signing, payment, alteration, claims, settlement, contract text and contract performance。
    5. Construction management
        Manage the dynamic information of the project implementation process。Including construction progress information, image progress information (site status, site graphics, site video, etc.), completion of investment information, funds in place and payment information。At the same time, the comparison, statistics and analysis of all kinds of information are carried out to comprehensively grasp the dynamics of the construction project site and provide strong information support for project supervision and control。
    6. Quality and safety management
        Introduce a credit management system, score the quality and safety inspection of the construction unit and supervision unit, record every accident in the construction process in detail, and realize the credit score and enterprise credit inquiry of the entering unit。Track and record the project quality and safety accidents, and manage each accident in a closed-mouth manner。
    7. Completion and handover management
        Track the completion of the project, manage the completion acceptance list, completion final accounts, completion process progress, etc。
    8. Audit management
        Audit management is interspersed in each functional module，Audit management of estimates, budget estimates and budgets;Conduct audit management on the bidding process of the limit price and the winning price;Audit management of contract prices and contract settlement prices;Follow-up audit management during project implementation;Audit and management of final accounts at the completion stage。
    9. Statistics and decision support
        1) Statistical query report Statistics: monthly, quarterly, annual and real-time statistical information reports of project funds and progress。
        2) Analysis of the completion of annual investment plans: able to analyze the completion of annual investment plans over the years。
        3) Summary analysis of government investment projects/major government projects: It can analyze, compare and summarize the selected range of government investment projects, including major government investment projects in accordance with various screening conditions。
        4) Comprehensive dynamic statistical information: other statistical information and all kinds of information concerned by leaders。
   10, Public service management (government investment project supervision website)
        Establish a website for the supervision of government investment projects, and publish relevant information such as notices, project policies, project dynamics, major project planning, land expropriation and demolition。
        1) Notice and announcement: Notify whether the approved project information is complete, project funds disbursement and expenditure, and project progress evaluation warning information;
        2) Project dynamics: Online inquiry of project information, bidding, construction process, design change, quality supervision, completion acceptance, audit and settlement, and fund use of approved projects;
        3) Project policies: Consult relevant government investment policies and regulations。
        4), complaints and consultation
             Through the website can accept and accept customer complaints and inquiries, online reply
        5) Credit inquiry
             Through the website to achieve the entrance of the unit credit score and enterprise credit inquiry, also accept online credit complaints, the confirmation of the system will be the relevant unit credit rating
    11. System management
         The system management module provides Settings for basic system data setting, system initialization setting, and user permission setting to ensure system security and scalability。
Fourth, the system technical characteristics
    1.B/S Three-layer architecture
      The system adopts the architecture of today's popular information management system to develop。System development pursues versatility, ease of use, stability, security and scalability。Business process management system adopts advanced browser /Web server/database server three-layer technical architecture，The client is mainly responsible for human-computer interaction，Browse, publish and manage information;The WEB server is mainly responsible for the centralized management and business processing of the client.The data server is responsible for the storage and organization of data。The division of labor between the various levels is very clear, non-interference, with the following characteristics:
    1), easy to expand, easy to use, easy to maintain, just install a browser, click the mouse can be operated, directly reduce the cost。
    2), prepare for the Internet, make the platform more resilient and can be accessed globally。
    3), reduce complexity, easy system update and maintenance。
    Browser
    Thin client technology means that users can access the Web home page of the system through the Browser at any time, any place, using any browser-supporting computer。The so-called "thin client" means that the client only needs to install a Browser on the computer, such as Microsoft's Internet Explorer, to access the WEB server。Then through the Web server to the database server access and return, so that the client browser can easily and quickly get the required information。
    Middle-tier server
    The middle tier of the three-tier architecture model in the system refers to the IIS server configured with the business computing logic component，This allows users to only need a standard browser on their desktop，Instead, all complex operations are centralized in professionally managed servers，Protect critical data，Centralized maintenance system，The effectiveness and scalability of the system are enhanced。
    The intermediate server can use a variety of interfaces to access the database server, such as ODBC (Open Data Connectivity), ADO (ActiveX Data Object), or ADO.NET。
    Data source layer server
    The database server in the three-level architecture model uses SqlServer2008 of Microsoft，The database server is powerful，Can work with Windows NT (2000, 2003) environment, WEB server IIS, Internet Explorer enables seamless integration，Successfully implement the various services required for management software。
    2. Powerful workflow technology
       Configurable workflow and electronic workflow can greatly improve operational efficiency and solve problems such as low efficiency of personnel operation, ineffective and unified management of work-related data, and incomplete preservation and archiving of workflow approval opinions。
    Monitor the handling of all internal matters in real time。Automatically and in real time collect the processing information of various matters, track the processing process, query the processing track, and monitor the processing personnel and efficiency
    Each review step is closely linked, indispensable, each link set processing time, designated processing person, any step will affect the progress of the entire review process。
    3.SMS reminder
      In the process of business approval, the processing personnel can be reminded that there are affairs waiting to be handled, and the overdue and overdue businesses can be reminded to remind the processing personnel
    4.System security guarantee
      Use usb encryption lock for identity authentication, login system must be inserted in the machine matching usb encryption lock, a lock, even if the password is stolen, can not illegally enter the system。
      User passwords are encrypted and stored. System functions are controlled by roles, permissions, and groups, and are flexibly allocated by administrators
5. Topology of system network structure