POWER BI is a set of applications, software services and connectors that are used to transform your disparate sources of data into consistent visual, immersive, and interactive information. The data you have may include an Excel spreadsheet or a set of hybrid cloud and on-premises data warehouses. Power BI allows you to access your information sources easily. Analyze and learn about what’s important, and then share it with anyone you wish.

Power BI is comprised of various components that work together, beginning with the six basic components 

• Power Query: Data mashing up tool and transform tool.
• Power Pivot: A tabular modelling tool for data
• Power View: A Data visualization tool
• Power Map is a 3D geo-spatial Data visualization tool
• Power Q&A: A natural Language question and answer engine.
• Power BI Desktop is a powerful development tool that can be used with Power BI.

⇒ Power Query can be described as a processing and Mashup software. It is possible to use Power Query to

• Connect to various sources for data (databases file, websites, files APIs, social media, APIs and cloud storage, etc.)
• Combine and bring together data (append or join, merge, and so on.) from different places
• Create new columns of data
• Reduce or format the amount of data
• Change the shape of data (transposing groups or pivoting, as well as un-pivoting, and other innovative methods)
• Formulas can be written to allow for complex manipulations of data.
• Create data that can be refreshed datasets

⇒ Power Pivot is an Excel add-in for Excel that allows you to conduct Powerful data analysis and build the Data Model, which is a set of tables with connections. One of the most impressive features in Power Pivot is an SQL Server Analysis Services engine that runs within Excel using flash memory or RAM within the system. Power Pivot lets Excel be a self-service BI platform used to execute advanced expression programming languages that analyze the model and calculate sophisticated measures.

⇒ Power View enables interactive data exploration visualisation, presentation, and visualization that facilitates ad-hoc, intuitive reporting. Massive data sets can be examined in real-time using the flexible visualization tools in Power View. The visualizations for data are constantly changing which makes it easier to make presentation of the data in one Power View reports.
Power View is based on the Data Model in your workbook. You can either begin with an existing Data Model that is already accessible inside Power Pivot or you can build an entirely new Data Model from Power View itself. In this guide we assume you have a basic understanding of what we mean by Data Model concepts in Power Pivot. In case not, we advise that you go through this Excel Power Pivot tutorial first.

⇒ Power Map is a 3D visualization tool for data in Excel that allows you to show temporal and geographic data visually, then analyze the data in 3D and design films to show to others using Excel. Globe Map is a custom visualization tool used within Power BI reports.

1. Greater meaning: We see our world from a 3D perspective, so when we convert an ordinary 2D plan of our towns or mountains into a 3D map, it instantly creates a stronger connection and an understanding of perspective.
2. An additional dimension 3-D map design doesn’t only have to be based on relative heights. You can also use 3-D effects to give another dimension to your visualisations, for example, population per town. This allows you to convey the most important details in an instant.
3. They appear really elegant: Sometimes, half our battle as data analysts is around keeping people in our (or our clients’) companies to become more interested and connected to their data. 3D maps could be an effective way of achieving that ‘wow impact’ that inspires people to be interested in the data.

⇒ POWER BI Q&A: Sometimes the most efficient way to get an answer from the data you have is to ask questions using natural words. Power BI Q&A is a feature that allows you to ask questions in natural language Power BI Q&A feature allows users to look at the data in your own terms. It is the most interactive methods. In most cases it is the case that one question leads to other questions as the graphs offer interesting routes to follow.
Power bi components q&a visual
The Power Bi Q&A visual is made up of four components. They are:
• The Power Bi Question box is where users can write their questions and are given suggestions on how to answer their question.
• The power bi Q&A comes with a an already-populated list of suggested questions
• Icon to transform the power bi q&a visual into the standard visual.
• Icon to open the power bi q&a tooling. This will lets the designer configure the natural language engine that runs underneath.

⇒ Power BI Desktop Microsoft Power BI Desktop is an analytics and reporting program that users can install on a PC to build dashboards and live reports. When integrated into Power BI Service, the user can also share the reports with stakeholders and decision-makers to assist them in understanding the situation of the business.
It combines all of the analytics and components together in a single. Power BI has a simple and user-friendly application that allows the most novice user to design impressive reports, models of data and customized dashboards.

In Power BI Desktop users are able to :

• Connect to data
• Transform and model the data
• Create charts and graphs
• Create reports and Dashboards that are collections of visuals
• Share reports with others using the Power BI service