Information Technology Strategy and Plan ConsultancyPhase 3 ReportFebruary, 1999IT05. Enterprise Data ModelScope and ObjectiveThe objective of this project is to define the Enterprise Data Model for Huawei based on the I/T Architecture defined in Phase 2 of the ITS&P consultancy project. The Enterprise Data Model will help Huawei to build up the process to standardise meanings (definition) of critical business information within the corporation. With the data standard and procedures of defining data elements set up, developers and users will know how these information is maintained so that data integrity can be ensured and conflicting information sources can be consolidated. F rom Huawei I/T’s perspective, the Enterprise Data Model contributes to the selection of application packages and development of new application programs. This Enterprise Data Model and the associated process, ownership, roles and responsibilities for its on-going maintenance should be communicated to Huawei management, I/T and selected users.The scope of this project includes:∙Define the Enterprise Data Model, which consists of a conceptual data model, the high level entities, some key attributes, their relationships and data standards, for the whole Huawei corporation based on the I/T Architecture developed in Phase 2 of ITS&Pconsultancy project, business requirements and existing application environment.∙Define the process, ownership, roles and responsibilities for on-going maintenance of the Enterprise Data Model.∙Communicate the Enterprise Data Model to Huawei management, I/T and selected user groups.Specifically excluded from the scope of this project are the following:∙Operational data will not be covered in the Enterprise Data Model.∙Some information is maintained for operational or tactical reason. An example is account balance for meals taken by an employee.∙Logical data model will not be part of the deliverables as the logical data model should be established based on the requirements of each business area. The logical model of each business area must be designed to align with the conceptual data model standard and guidelines defined in this project.∙Physical database design will not be covered in this project.∙As Huawei adopts an acquire-and-manage strategy, unless a new application is developed, the physical database design will be dictated by packages. TheEnterprise Data Model can thus guide package selection and reduce the problem of data integrity in the long run but it should not, at this stage, define the design ofphysical database.Note: This project has specifically excluded any reference to Year 2000 capability including Year 2000 contingency planning and compliance issues. As such the IBM consultant team has not provided any advice nor does it make any recommendations in respect of ensuring Year 2000 compliance for any existing or proposed systems. In all cases where technology solutions are referenced the technology supplier should be contacted to determine Year 2000 compliance status.Business BenefitsIssues being resolvedThis project will have a positive impact on overcoming the following specific issues:∙Information is captured, used and maintained within user groups but not shared across them.∙Lack of process to define data standard, maintain data standard.∙Lack of corporate-wide definition of data accessed and conformed by applications.∙Data integration issue as reflected in I/T survey conducted in Phase 1 of the ITS&P consultancy project.Intangible benefitsThis project will provide the following intangible benefits:∙Improve the quality, accuracy and integrity of information.∙Improve quality of business decisions.∙Reduce business process cycle times.∙Promote re-use and sharing of data.∙Reduce data redundancy.∙Reduce the development cycle time and maintenance effort.∙Position the future use of datawarehouse application.Tangible benefitsThis project will provide the following tangible benefits:∙Faster turnaround time in application development.∙Reduction in number of data integrity problems.ApproachMajor implementation activities to be undertaken1. Initiate project.2. Based on the projects identified in Phase 1 to come up with the data scope for the future5 years.3. Define the data standard in Huawei.4. Define the templates for entities, attributes, domains and integrity enforcementrequirements.5. Identify tools (like Word, Excel etc. ) to support the templates.6. Identify the possible data modelling case tools to be used in Huawei for modelconstruction and data dictionary documentation.7. Build up the conceptual data model, high level entities and high level attributes. Definethe corresponding relationships with business rules requirements.8. Define the process to check in/out data definition of entities and attributes within theenterprise data model. Define the roles and responsibilities to support the definedprocess.9. Document the conceptual data model, process, roles and responsibilities as thedeliverable of this project.。