• Collect the data from the core and distributed branches.
• Collect business requirement documents from business site.
• Collect system requirement for data warehouse.
• Document current process and solution workflows for both current and proposed state for existing and future reporting requirements.
• Document detailed security requirements for accessing data.
• Document the infrastructure requirements, hardware and software.
• Document user requirements for ad-hoc reporting and analysis.
• Analyze the source data and transactional data.
• Make sure all source data is available and can be collected.
• Select database system.
• Select server and its operating system.
• Design conceptual and solution architecture to support the data warehouse.
• Design technical specifications for the staging area, data warehouse, metadata, data mart base on the requirements.
• Design logical and physical data models, schema and data structure.
• Analyze performance of system and database server tuning.
• Analyze frequency of data loading.
• Establish interfaces to source systems and data transfer.
• Build up data mart from diverse sources and is designed to support query and analysis.
Development & Implementation
• Develop extraction, transformation and loading data from the source data.
• Analyze and determine missing data.
• Create physical structure of staging area, data warehouse and data marts.
• Perform data loads of new mappings into new structure.
• Analyze new data structure to ensure all necessary levels of reporting, analysis and business requirements are met.
• Establish data mapping, programs, scripts to perform ETL work of new data contents, formats, and descriptions.
• Analyze data loading at various intervals to ensure appropriate loading.
• Design and develop require reports.
• Develop test cases, test plan and test execution timeline.
• Design test scenarios for business requirements.
• Establish unit testing, functional testing, and UAT testing environment.
• Transition to end users and generate the required business reports.
• Analyze and validate the reports.
• Projection on reports and support decision making.
29 freelancer bu iş için ortalamada 5493$ teklif veriyor
I am a data scientist/quantitative developer with over 5 years of experience doing analysis. My interest and expertise in using MS Access,R , Matlab ,weka and Database Development.