Forum Discussion
functional and requirement document
Functional Documentation
1. Project Overview
Objective: Describe the purpose of the Power BI project, what business problems it aims to solve, and the expected outcomes.
Scope: Outline the boundaries of the project, including what will and won't be covered.
2. Data Sources
Source Systems: List the databases, Excel files, cloud services, etc., where data will be extracted from.
Data Integration: Describe how data from various sources will be integrated, including any ETL (Extract, Transform, Load) processes.
3. User Requirements
User Roles: Define the different types of users (e.g., analysts, managers, executives) and their specific needs.
Reports and Dashboards: Detail the reports and dashboards required, including mock-ups or wireframes.
KPIs and Metrics: List the key performance indicators and metrics that need to be tracked.
4. Data Security and Access Control
User Permissions: Outline who can access what data and what level of access they have.
Data Sensitivity: Identify any sensitive data and how it will be protected.
5. Data Refresh and Maintenance
Data Refresh Schedule: Describe how often the data will be updated and the process for doing so.
Maintenance Plan: Outline who will be responsible for maintaining the Power BI reports and dashboards.
Technical Documentation
1. Data Architecture
Data Model: Provide detailed diagrams of the data model, including tables, relationships, and any data hierarchies.
Data Flow: Describe the flow of data from source systems to Power BI, including any transformations.
2. Data Sources
Connection Details: Provide technical details about how to connect to each data source, including connection strings and authentication methods.
ETL Processes: Detail the ETL processes, including any scripts or workflows used.
3. DAX Calculations
Measures and Calculated Columns: List all DAX measures and calculated columns used in the reports, including the formulas and their purposes.
Performance Optimization: Describe any performance optimization techniques used, such as aggregations or indexing.
4. Report and Dashboard Configuration
Report Layout: Provide detailed descriptions of the layout of each report and dashboard, including visuals used and their configurations.
Interactivity Features: Describe any interactivity features, such as drill-throughs, slicers, and filters.
5. Security and Access Control
Row-Level Security (RLS): Describe the RLS implementation, including the DAX expressions used.
User Roles and Permissions: Provide technical details about user roles and permissions setup.
6. Maintenance and Troubleshooting
Error Handling: Describe any error handling mechanisms in place.
Troubleshooting Guide: Provide a guide for common issues and their resolutions.
So, in simple word: "Requirements define what you need to cook, functional documents specify the ingredients, and technical documents explain how to cook it meaning detail of the implementation."
Hope this above explanation will help you to clear your confusion.
Hi shafiz_p
I am confused between functional and technical documentation , can you give me example of content of both in terms of power bi ?
Functional Documentation
1. Project Overview
Objective: Describe the purpose of the Power BI project, what business problems it aims to solve, and the expected outcomes.
Scope: Outline the boundaries of the project, including what will and won't be covered.
2. Data Sources
Source Systems: List the databases, Excel files, cloud services, etc., where data will be extracted from.
Data Integration: Describe how data from various sources will be integrated, including any ETL (Extract, Transform, Load) processes.
3. User Requirements
User Roles: Define the different types of users (e.g., analysts, managers, executives) and their specific needs.
Reports and Dashboards: Detail the reports and dashboards required, including mock-ups or wireframes.
KPIs and Metrics: List the key performance indicators and metrics that need to be tracked.
4. Data Security and Access Control
User Permissions: Outline who can access what data and what level of access they have.
Data Sensitivity: Identify any sensitive data and how it will be protected.
5. Data Refresh and Maintenance
Data Refresh Schedule: Describe how often the data will be updated and the process for doing so.
Maintenance Plan: Outline who will be responsible for maintaining the Power BI reports and dashboards.
Technical Documentation
1. Data Architecture
Data Model: Provide detailed diagrams of the data model, including tables, relationships, and any data hierarchies.
Data Flow: Describe the flow of data from source systems to Power BI, including any transformations.
2. Data Sources
Connection Details: Provide technical details about how to connect to each data source, including connection strings and authentication methods.
ETL Processes: Detail the ETL processes, including any scripts or workflows used.
3. DAX Calculations
Measures and Calculated Columns: List all DAX measures and calculated columns used in the reports, including the formulas and their purposes.
Performance Optimization: Describe any performance optimization techniques used, such as aggregations or indexing.
4. Report and Dashboard Configuration
Report Layout: Provide detailed descriptions of the layout of each report and dashboard, including visuals used and their configurations.
Interactivity Features: Describe any interactivity features, such as drill-throughs, slicers, and filters.
5. Security and Access Control
Row-Level Security (RLS): Describe the RLS implementation, including the DAX expressions used.
User Roles and Permissions: Provide technical details about user roles and permissions setup.
6. Maintenance and Troubleshooting
Error Handling: Describe any error handling mechanisms in place.
Troubleshooting Guide: Provide a guide for common issues and their resolutions.
So, in simple word: "Requirements define what you need to cook, functional documents specify the ingredients, and technical documents explain how to cook it meaning detail of the implementation."
Hope this above explanation will help you to clear your confusion.