CN117670566A - Enterprise-level business and financial integrated EPC business management system based on SAP package software - Google Patents

Abstract

The invention provides an enterprise-level industry and finance integrated EPC service management system based on SAP package software, which sequentially comprises the following technical architecture: presentation layer: the portal application adopts group portals for deployment, so that the service function interaction usability of the SAP system is improved; the workflow platform is integrated, so that the working efficiency is improved; application layer: SAP S/4HANA-ERP is adopted as a core service platform, and ESB enterprise service bus is adopted as an integration middleware; database layer: and the SAP HANA, mySQL and Oracle database are combined to support the industry mainstream interface. The management system establishes and maintains a unified project evaluation standard, a reporting system and the like by arranging project progress, resource allocation, risk management, problem management, quality management, implementation range management and the like, and guides the success of the whole project in multiple aspects.

Description

Enterprise-level business and financial integrated EPC business management system based on SAP package software

Technical Field

The invention relates to the technical field of digital information management, in particular to an enterprise-level industry and finance integrated EPC service management system based on SAP package software.

Background

The EPC business mode overcomes the defects caused by relatively independent purchase and construction in the traditional project package mode, effectively transfers investment risks through unified scheduling and management, and becomes a project package mode commonly adopted internationally. However, the existing project delivery mode in China still adopts a two-dimensional mode as a design tool and an information transmission medium, so that the existing project delivery mode is still not ideal in the aspects of work integration, information transmission and the like, and integrated management of projects cannot be truly realized. Along with the continuous acceleration of the informatization process, all enterprises pay more attention to the improvement of the enterprise management level by utilizing the information technology, especially large-scale construction enterprises taking the EPC total contractor as the main development direction, but no mature informatization construction scheme aiming at the EPC project exists at present.

In order to meet the current increasingly developed business needs, a hybrid cloud platform and an information technology management system, a group management informatization platform, a project management system and a digital design platform are built in 2020. At present, normal business demands can be met through a new system, but management contents of the whole EPC engineering process are quite lacking, and the development of enterprise camping business cannot be deeply met. Related services are relatively independent on respective service platforms, integrated interaction links are relatively weak, and informatization levels are relatively backward.

By referring to the best practice cases of the current EPC project management system, integrated informationized deployment results completed in recent years are integrated to carry out overall implementation work, EPC project management business full coverage is realized according to the implementation requirements of the EPC project management system, a financial business integrated and EPC project full life cycle management is constructed, and business financial integrated management platforms for supporting financial, material, project and marketing management are established and formed in enterprises with business cooperation, upstream and downstream cooperation and upstream and downstream cooperation as cores.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides an enterprise-level business and financial integrated EPC business management system project management based on SAP package software, which runs through six implementation stages, and by arranging project progress, resource allocation, risk management, problem management, quality management and implementation range management, a unified project evaluation standard, reporting system and the like are established and maintained, so that the success of the whole project is guided in multiple aspects.

An enterprise-level industry and finance integrated EPC service management system based on SAP package software, the technical architecture of the management system sequentially comprises:

presentation layer: the portal application adopts group portals for deployment, so that the service function interaction usability of the SAP system is improved; the workflow platform is integrated, so that the working efficiency is improved;

application layer: SAP S/4HANA-ERP is adopted as a core service platform, and ESB enterprise service bus is adopted as an integration middleware;

database layer: in combination with SAPHANA, mySQL and Oracle databases, the industry mainstream interface is supported.

Preferably, the management system realizes the whole project process management by enabling the SAP standard PS, SD, MM, FICO module function and the self-development function through the EPC engineering total contractor project management system, and specifically comprises the following steps:

a1, enabling an SAP standard PS module to realize project stand, WBS decomposition, state management and project related infrastructure management functions of budget allocation;

a2, enabling an SAP standard SD module to realize sales service related functions of owner contract creation, contract filing number, sales order creation and contract workload confirmation;

a3, enabling an SAP standard MM module to realize subcontract management, subcontract order management, engineering quantity confirmation and purchasing invoice management subcontract service related functions;

a4, enabling an SAP standard financial module to realize relevant financial functions of prepayment management, expense accounting, quality insurance management and project settlement;

a5, realizing business document input, compiling and archiving management through a self-development function, thereby realizing form function migration of the original EPC system;

a6, integrating the EPC system with a main data system, a workflow approval system, a purchase management system and a fee control system through interfaces, and realizing functions of industry and finance fusion main data transmission, bill approval in the EPC system and EPC project payment initiation and approval payment.

Preferably, in the SAP standard, the system-integrated interface includes the following:

b1, webservice interface: the Webservice of the SAP is that the Webservice component encapsulates the existing functions of the SAP into Webservice objects by adopting two web service technologies, namely SOAP and WSDL through a UDDI tool for other systems to call or call Webservice of other systems, thereby realizing the integration of the SAP and the non-SAP systems;

b2, ESB integration interface: the ESB integrated interface technology is enterprise informatization mature application integrated solution technology; in the implementation plan, the interfaces between the EPC management system and the company operation subsystems except the approval stream system all use ESB integrated interfaces to conduct data transmission.

Preferably, the integration of the EPC system with the peripheral system includes the following schemes:

when the C1, EPC system and the main data management system MDM are integrated, based on the requirement of the standard management of the main data of the MDM, main data are acquired from the main data management system MDM to meet the requirement of system operation evaluation;

when the C2, EPC system and workflow approval system are integrated, the EPC system needs to interact with the workflow approval system for the approval process of the determined need and the current or future workflow node; the method specifically comprises the following steps:

c2.1, according to the data, the EPC system sends the data to an approval flow system;

c2.2, the approval flow system transmits approval result data to the EPC management system;

when the EPC system is integrated with the purchase management system, the EPC system uploads the information related to the purchase contract to the purchase management system, and the purchase management system transmits the information related to the purchase order to the EPC purchase management module;

and C4, when the EPC system is integrated with the project management system, the EPC system acquires project code, project responsible person and main contract code information from the project management system.

The invention has the advantages and technical effects that:

the invention relates to an enterprise-level business and financial integrated EPC business management system based on SAP package software, which is constructed to form the management control of the whole life cycle of EPC project management through system construction and longitudinally support each business management domain of the EPC; and the management functions of finance, materials, sales and projects are fully penetrated transversely, the business and financial integration of an EPC system is perfected through the integration of the EPC and various associated systems, the fund flow, logistics and information flow integration and data sharing of the whole EPC project management process are realized, and the standardization, refinement and high efficiency of enterprise management work are ensured. Each management function of the system comprises:

1. project management: on the basis of a scientific and standard management system, forming a project management function which takes project management as a main line and takes cost and progress as targets according to a project management methodology of a system, and firstly, realizing project budget fine management; secondly, realizing information report preparation, planning items, bid approval, contract approval, authorized assignment, receipt and payment approval, settlement approval, change approval, process inspection, data archiving, examination excitation and summary evaluation process management of the project; thirdly, realizing the execution process management of the project;

2. sales management: through construction of an EPC project management system, the sound sales business flow is managed and controlled, and firstly, standardized classification and standardized management of main data of group layer clients are realized; secondly, dynamic tracking control of the main contract is realized, and the execution progress, collection percentage, billing situation and effective management and risk prevention and control of enterprises on sales contracts of the contract are mastered in real time; thirdly, splitting different dimensionalities of the materials and services is realized; fourthly, realizing business and financial integration with inventory management, financial management and project management, and automatically accounting the bill; fifthly, realizing the offset of the wrong delivery and the replacement of the goods; and sixthly, the business of wrong invoice offset, invoice red offset and invoice refund is realized.

3. And (3) material management: through the construction of the EPC project management system, the whole process standardization of the recruitment business is promoted, and firstly, the standardized classification and standardized management of the main data of materials and the main data of suppliers are realized; secondly, realizing the functions of real-time statistics, inquiry and analysis of basic data and automatically generating various reports; thirdly, realizing purchasing plan management, contract management, inventory management and flow management of contract settlement business; fourthly, establishing and forming a closed loop management of purchase planning, purchase bidding, purchase contract, purchase order multi-service collaboration and upstream and downstream collaboration; fifthly, the whole process integrated management of project, design, budget, purchase, contract, cost and settlement functions is realized, and the goal of business and finance integrated management is reached; realizing automatic tentative accounting of purchasing and warehousing, automatically accounting according to cost objects when the purchasing and warehousing are carried out, fusing logistics and fund flows, and inquiring the inventory in real time and transparently; seventh, realize invoice and automatic check-up of the purchase order and examine, raise the planning of the purchase fund; and eighth, statistical analysis of all material management information of materials, suppliers, purchasing, inventory, contract performance and contract settlement is realized, and analysis and display of main operation management report forms of the company are completed.

4. Financial management: by constructing an EPC project management system, an EPC project financial accounting system which meets national requirements and has internationalization and modernization is established, firstly, engineering quantity management is realized, and the engineering quantity management mainly comprises owner engineering quantity confirmation, subcontractor engineering quantity confirmation and historical engineering quantity management; secondly, realizing tax administration, mainly comprising the administration of pre-paying tax in different places and tax declaration without ticket sales items; thirdly, realizing progress money management, mainly comprising owner collection management, collection budget allocation, SCE payment management and quality insurance management; fourthly, realizing invoice management, mainly comprising owner invoice management and subcontractor invoice management; fifthly, realizing the deposit management, mainly comprising owner deposit management and subcontractor deposit management; realizing budget allocation, mainly comprising SCE budget allocation, cooperation department budget allocation and collection budget allocation; seventhly, realizing cost income balance, mainly comprising tentative cost balance, cost expense allocation and income confirmation; and eighth, completion settlement management is realized, and the completion settlement management mainly comprises owner contract settlement, subcontractor contract settlement and project settlement posting.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a diagram of an overall business architecture with items as main lines in the present invention;

FIG. 3 is a data governance framework diagram of the present invention;

FIG. 4 is a system technical architecture diagram of the present invention;

FIG. 5 is a flow chart of an embodiment of the present invention;

FIG. 6 is a schematic diagram of the business activity of the present invention (example 1);

FIG. 7 is a schematic diagram of business activity according to the present invention (example 2);

FIG. 8 is a schematic diagram of business activities according to the present invention (embodiment 3);

fig. 9 is a schematic diagram of the business activity of the present invention (embodiment 4).

Detailed Description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the invention and are not to be construed as limiting the invention.

In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The invention relates to an enterprise-level industry and finance integrated EPC service management system based on SAP package software, which comprises the following modules in detail:

the implementation project is divided into six stages of planning, analysis, design, construction, test and deployment, and the four through-the-clock tasks of application, technical architecture, training and performance management and service support system are grasped and controlled in each stage.

Application: all work used throughout the stage to support project solution development, deployment, including user interface, content, business logic, and data;

the technical architecture is as follows: analysis, selection, design and installation, setup, and testing to illustrate a technical architecture, the environment including development, execution, and execution environments;

training and performance management: the method for managing the work roles, the work team, the work tasks, the training and the performance, the communication way and the like are defined, and the factors have influence on the effective application, maintenance and expected benefits of the solution;

service support architecture: the contents of the various support services required to ensure the smooth execution of the solution are specified. For each stage of work, after the task is completed and verified, a corresponding delivery result is provided.

In addition, a key control point mode is applied to ensure high-quality document delivery between different implementation stages, confirmation of submission results and smooth work handover between stages.

The project management runs through six implementation stages, and the project progress, resource allocation, risk management, problem management, quality management, implementation range management and the like are arranged, so that a unified project evaluation standard, a reporting system and the like are established and maintained, and the success of the whole project is guided in multiple aspects.

The policy principles to be followed by the invention are:

1. supervision priority, standard advance: constructing project management organization, constructing management grippers, and undertaking overall project construction process management; constructing an omnibearing, full-flow and full-element informationized construction management and control system, and supervising project flows and important nodes; the requirements of 'unified construction and management' are adhered to, the data model unification, the technical route unification and the safety requirements unification are realized in the whole construction process of the information system, the foundation of interconnection and intercommunication, information sharing, coordinated operation, safety and reliability among all functional systems is ensured, and unnecessary repetition and blindness in construction are reduced.

2. Speed priority, priority and priority: based on comprehensive business requirements, mature software and advanced technology design, the construction and implementation of a agile thinking accelerating system are adopted, the optimal design of first hand user behavior data/feedback guidance software is obtained as soon as possible, and the risks of over-design and separation from the actual requirements of clients are avoided.

3. Consensus priority, joint design: through the true and honest cooperation attitude, the communication guidance of clients, manufacturers and users is enhanced, and the thought consensus that all parties participate actively, cooperate efficiently and advance rapidly is formed. The method has the advantages that difficulties and problems encountered in the implementation process are accurately grasped, service commonality requirements are continuously mined, service requirements, technical design and implementation operation and maintenance work are combined, the implementation floor effect of a system is quickened, all parties have participation and responsibility in the process through common efforts of longitudinal multilevel units and transverse implementation units, and communication guarantee is provided for smooth delivery of projects.

4. Business leading and information coordination, namely, informationized construction is taken as a root to serve actual needs of business, and a business department carries out requirements on information construction requirements and application implementation, and an informationized main department and a supporting team carry out scientific management and coordination on requirement change based on technical characteristics and project requirements; meanwhile, the unreasonable requirements of the business department are effectively controlled and restrained, and the situation that project delivery lag and quality lag are caused by overturned adjustment of the whole system structure is avoided.

5. The test points are popularized in advance and gradually, the complexity of the implementation work is deeply known and mastered, the implementation and application of each system are firmly promoted by the modes of point belt surface, experience accumulation, rapid adjustment and scale application and steady beating from the actual start. The problems in the implementation process are deeply analyzed, and excellent experience is summarized and refined, so that preparation is provided for the rapid copying popularization in the later stage.

The project implementation work covers the whole process of project construction and online operation, and comprises project starting, demand investigation, design, development, testing, implementation deployment, online preparation and switching, online test operation support and system construction and transfer work, wherein the construction stage, implementation flow, business links, milestone nodes and stage results output as follows:

1. project initiation

The project starting stage work content mainly comprises project implementation strategies, plans and system specification preparation, project organization establishment, project management material revision, project implementation target plan preparation, project starting meeting preparation, project construction Xuan Guan and the like. The traffic activity diagram is as follows:

1) Submitting project construction management materials

Project construction management materials are submitted within 5 working days after signing a contract, and comprise project construction strategies, management and control mechanisms and management methods, target and risk management, project implementation team guarantee methods, project quality standard management systems, project process management methods, project emphasis/difficulty points and solution strategies, implementation strategies and plans, quality assurance plans, project document management methods, coordination mechanism suggestions and the like.

2) Revision project management material and implementation target plan

Project management data submitted by project rules, project total package construction strategies and the like are revised, the revised implementation plan comprises an implementation range, implementation stage targets and detailed project plans, and the overall design in the second package and the requirement investigation, design, research and development, test, implementation, test points and popularization of the specific time plans of the 35 sub-modules are definitely carried out.

3) Preparing an office environment

The method is used for preparing a resident office environment and related computer software and hardware resources (including but not limited to a software development environment, a software testing environment, a project management environment and the like), and definitely preparing the resident office personnel for later development and implementation.

4) Holding item startup meeting

The project group is responsible for starting the preparation of meeting materials, the enterprise organization holds the project starting meeting, so that each relevant business department, technical department, contractor and the like can know the content of each system of enterprise construction and the content of the relevant matters to be matched, such as the overall work objective, work plan, project organization, communication mechanism, guarantee measures and the like, and the formally starting of the declared project is clear.

5) Project implementation construction declaration

Project construction targets and project construction requirements are announced, and all relevant personnel involved in project implementation, such as decisions, businesses, technologies, applications and the like are mobilized.

2. Overall blueprint design

And the advanced and fitting business design methodology is selected through investigation and research, and the overall business scheme design is developed from the strategic level, the planning level, the design and implementation level and the like. And the business of enterprises is comprehensively and optimally designed with the aim of digitalization and wisdom.

1) Design method discussion and practical investigation

Based on business positioning and business requirements of enterprises and functional departments, the Design ideas of Enterprise Architecture (EA) such as TOGAF, zachman are selected, ideas such as Design planning, agile development and the like are adopted, the whole project delivery and operation process is optimized, and the overall business scheme of the enterprise is practically researched.

2) Core business scheme design

Mainly comprises two aspects of data and service. The data layer mainly comprises an overall data architecture scheme, a data management system, a data migration scheme, a historical data arrangement and import scheme and the like; the business layer mainly comprises project business consultation methodology, general investigation and demand analysis schemes, general business architecture schemes (including business collaboration schemes), business flow standardization schemes, product trial schemes, system file standard specification schemes, main scheme implementation schemes and the like.

3) Overall application architecture design

Based on the current state of enterprise informatization, combining the building design and the digital transformation target of the total package business, the construction scope relates to 3 sets of systems of a business layer according to a unified system, standard and specification.

4) Overall technical architecture design

The unified development standard and technical route are adopted, and the technical architecture covers a plurality of technical fields such as infrastructure, resource centers, access channels, safety and the like.

5) Overall data architecture design

And according to the object model and the data reference model of each service unit in the service architecture, carrying out unified data carding and data planning on each service system supporting the application architecture to form an integrated platform data architecture and a part of data theme domain architecture.

6) Overall integrated architecture design

The personal property is accessed into a unified portal platform to integrate functions such as backlog, single sign-on, unified authority and the like, and unified management of integrated services of all systems of the personal property is realized through an Enterprise Service Bus (ESB); the public data center realizes batch data transfer, and the main data management platform (MDM) implements main data management.

3. Scheme design

On the basis of compliance of the overall blueprint design architecture, the working of the requirement specification is carried out, and the working comprises work organization arrangement, design report establishment and expert review. The traffic activity diagram is as follows:

system overall framework: project overview, general design principles, general technical routes, architecture compliance, business architecture, application architecture, data architecture, technical architecture;

business capability view: business targets, organization units, post business processes, business activities and business information;

functional view: role definition, function view, function list;

system data view: conceptual data model, logical data model, data classification, data flow, data storage and distribution;

system integration view: overall integration, integration scene, integration design, interface integration, application integration, and data integration;

system logic deployment view: designing a deployment unit and a deployment node;

view of system physical deployment: deployment topology, capacity planning, hardware environment design, software environment design;

nonfunctional design: performance and reliability, security, application and operation monitoring, maintainability, and ease of use.

4. System testing

After the system test work is tested by the inside of each item group, user function confirmation test and test work participated by a third party are carried out, and only the system passing the test has the condition of online deployment, and the test contents mainly comprise function test, performance test and safety test. The business activity diagrams of each stage are as follows:

1) Test preparation

Setting up a hardware environment and a software environment for testing, installing and deploying an application system, initializing and configuring the application system, writing test cases, and organizing related technicians and business personnel to prepare for testing;

2) Internal testing

According to the written test cases, preparing function conformity description and function list, mainly including unit test, integration test and function confirmation test.

3) User test (UAT)

The method comprises the steps of preparing test cases, and coordinating service users to develop function confirmation tests, wherein the function confirmation tests comprise a functional test, a reliability test, an usability test, a compatibility test, a performance efficiency test, a maintainability test, a portability test and a user document set test.

5. On-line test run

The method mainly comprises the application of online test operation and the technical support of the system during the test operation, and is prepared according to the standard requirement of the online test operation, and the technical support of the system during the test operation is developed, including any faults of the system and the functional adjustment of system software approved by both parties.

1) Application for online test run

The system is provided with an online test operation condition through safety detection and pressure test, and provides materials such as test operation application, test operation scheme, time arrangement and the like for approval. After the enterprise checks that the project meets the test run standard, the project enters the test run.

The online test run application form material comprises: an online test operation application form; the user confirms the test report; a system emergency plan and a quick recovery plan; a third party test report, a security test report, a code security detection report; a system operation and maintenance scheme; a software copyright transfer confirmation list; implementing a deployment scheme by the system; a data cleaning and permission recycling scheme; training schemes; information system security, etc. security record reporting, etc.

2) On-line test run

The test run time is 3 months from the date of the first check acceptance, and the provided system runs continuously without major faults. And the modification and perfection are required to be continuously carried out according to the test run report. If major faults occur in the test operation period, the test operation period is calculated again from the date of fault removal until the system has no major faults for 3 months continuously. Major faults refer to problems of an application system, and the application system cannot normally run or burst large-scale virus events after 36 hours, serious safety events occur, and the like;

3) System software function change review

During the whole test operation period of the application system, when the system function is changed and needs to be changed or newly added, enterprise review is needed, and function adjustment is carried out in a reasonable range.

Finally, the inexhaustible points of the invention adopt mature products and mature technical means in the prior art.

In the description of the present specification, the descriptions of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in an embodiment or example of the invention.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (4)

1. An enterprise-level industry and finance integrated EPC service management system based on SAP package software is characterized in that: the technical architecture of the management system sequentially comprises:

presentation layer: the portal application adopts group portals for deployment, so that the service function interaction usability of the SAP system is improved; the workflow platform is integrated, so that the working efficiency is improved;

application layer: SAP S/4HANA-ERP is adopted as a core service platform, and ESB enterprise service bus is adopted as an integration middleware;

database layer: in combination with SAPHANA, mySQL and Oracle databases, the industry mainstream interface is supported.

2. The SAP package software-based enterprise-wide financial integration EPC service management system of claim 1, wherein: the management system realizes the whole process management of the project by starting the SAP standard PS, SD, MM, FICO module function and the self-development function through the EPC engineering total contractor project management system, and specifically comprises the following steps:

a1, enabling an SAP standard PS module to realize project stand, WBS decomposition, state management and project related infrastructure management functions of budget allocation;

a2, enabling an SAP standard SD module to realize sales service related functions of owner contract creation, contract filing number, sales order creation and contract workload confirmation;

a3, enabling an SAP standard MM module to realize subcontract management, subcontract order management, engineering quantity confirmation and purchasing invoice management subcontract service related functions;

a4, enabling an SAP standard financial module to realize relevant financial functions of prepayment management, expense accounting, quality insurance management and project settlement;

a5, realizing business document input, compiling and archiving management through a self-development function, thereby realizing form function migration of the original EPC system;

a6, integrating the EPC system with a main data system, a workflow approval system, a purchase management system and a fee control system through interfaces, and realizing functions of industry and finance fusion main data transmission, bill approval in the EPC system and EPC project payment initiation and approval payment.

3. The enterprise-wide business and financial integrated EPC business management system based on SAP package software of claim 2, wherein: in the SAP standard, the system-integrated interface includes the following:

b1, webservice interface: the Webservice of the SAP is that the Webservice component encapsulates the existing functions of the SAP into Webservice objects by adopting two web service technologies, namely SOAP and WSDL through a UDDI tool for other systems to call or call Webservice of other systems, thereby realizing the integration of the SAP and the non-SAP systems;

b2, ESB integration interface: the ESB integrated interface technology is enterprise informatization mature application integrated solution technology; in the implementation plan, the interfaces between the EPC management system and the company operation subsystems except the approval stream system all use ESB integrated interfaces to conduct data transmission.

4. The enterprise-wide business and financial integrated EPC business management system based on SAP package software of claim 2, wherein: the integration of the EPC system and the peripheral system comprises the following schemes:

when the C1, EPC system and the main data management system MDM are integrated, based on the requirement of the standard management of the main data of the MDM, main data are acquired from the main data management system MDM to meet the requirement of system operation evaluation;

when the C2, EPC system and workflow approval system are integrated, the EPC system needs to interact with the workflow approval system for the approval process of the determined need and the current or future workflow node; the method specifically comprises the following steps:

c2.1, according to the data, the EPC system sends the data to an approval flow system;

c2.2, the approval flow system transmits approval result data to the EPC management system;

when the EPC system is integrated with the purchase management system, the EPC system uploads the information related to the purchase contract to the purchase management system, and the purchase management system transmits the information related to the purchase order to the EPC purchase management module;

and C4, when the EPC system is integrated with the project management system, the EPC system acquires project code, project responsible person and main contract code information from the project management system.