Official Answer to this question
is – An interactive data exploration, visualization and presentation experience
. It is one of the core component of MS Managed Self-service BI initiative. Power View, formerly known as “Project Crescent,” is an end-user focused
tool ie UI that provides easy to use ad-hoc reporting and data exploration for
users ranging from analysts to information workers. Reports can be created from
data in PowerPivot workbooks or tabular and multidimensional (SQL Server
2014+) BI Semantic Models deployed to SQL Server 2012
Analysis Services. Running in a browser, powered by SharePoint Server 2010+,
Power View enables users to present their insights through highly interactive
visual presentations.
Powerview was first introduced in SQL Server 2012 and in
Office 2013 release Powerview was integrated to Excel ( Powerview is not
integrated with prior version of Excels).
As Powerview is one of the core components in Microsoft Self-service BI
initiative, it helps business analysts or business users (non-IT crowd) to
build various types of BI reports without much support from IT. (Reportbuilder was the first step towards the
adhoc reporting capability in SQL Server reporting service but it had lot of limitations.
)
Powerview
is a Metadata driven reporting solution. it connects to Analysis
Services BI Semantic Model. What it
means is, Powerview directly does not connect to raw data/data warehouse, it
connects to BI Semantic model and model intern connects to raw data(please note
that even Powerpivot has its own BI Semantic model). BI Semantic model provides
analysts or users a universe from where they can create reports.
Powerview
can connect to a local BI Semantic model builtin which Office 2013. When you use powerview in this mode, it has
analysis service engine build into excel.