Big Data Characteristics

We differentiate Big Data from traditional data by one or more of the four V’s: Volume, Velocity,Variety and Veracity

1)Volume:  Volume is the amount of data generated that must be understood to make data based decisions.

A text file is a few kilobytes, a sound file is a few megabytes while a full-length movie is a few gigabytes.

Example for Big Data - Amazon

Example: Amazon handles 15 million customer click stream user data per day to recommend products.

Extremely large volume of data is major characteristic of big data online training.

2) Velocity: Velocity measures how fast data is produced and modified and the speed with which it needs to be processed. An increased number of data sources both machine and human generated drive velocity.

Youtube - Example for Big Data

Example: 72 hours of video are uploaded to YouTube every minute this is the velocity.
Extremely high velocity of data is another major characteristic of big data.

3) Variety: Variety defines data coming from new sources—both inside and outside of an enterprise

It can be structured, semi-structured or unstructured.

Structured data is typically found in tables with columns and rows of data. The intersection of the row and the column in a cell has a value and is given a “key,” which it can be referred to in queries. Because there is a direct relationship between the column and the row, these databases are commonly referred to as relational databases. A retail outlet that stores their sales data (name of person, product sold, amount) in an Excel spreadsheet or CSV file is an example of structured data.


A Product table in a database is an example of Structured Data

Product_id Product_name Product_price
1 Pen $5.95
2 Paper $8.95

Semi-structured data also has an organization, but the table structure is removed so the data can be more easily read and manipulated. XML files or an RSS feed for a webpage are examples of semi-structured data.

Example: XML file



<name>Pen </name>




<name>Paper </name>



Unstructured data: Unstructured data generally has no organizing structure, and Big Data technologies use different ways to add structure to this data. Typical example of unstructured data is, a heterogeneous data source containing a combination of simple text files, images, videos etc

Output returned by ‘Google Search’

Unstructered Data Example for Big Data


4) Variability – This refers to the inconsistency which can be shown by the data at times, thus hampering the process of being able to handle and manage the data effectively.

You can see that few values are missing in the below table

Department Year Minimum sales Maximum sales
1 2010 ? 1500
2 2011 10000 ?

Data available can sometimes get messy and maybe difficult to trust. With wide variety in big data types generated, quality and accuracy are difficult to control.

Example:  A Twitter post has hashtags, typos and abbreviations.

Keep Learning:

to our newsletter

Drop Us A Query

Trending Courses
  • Pega testing training
    PEGA Testing Training
  • Today application testing is the deciding factor to launch the application into the market. And people do not launch the application unless it goes true.

  • blockchain course
    Blockchain Online Course
  • Today many people were enthusiastic, to know the exact details of things happening around him. This can get the proper knowledge on Blockchain.

  • ethical hacking course
    Ethical Hacking Certification Course
  • Zeal to learn ethical hacking is common among college students and IT professionals. Because everybody wants to secure their system from cyber attacks.

  • python training
    Python Online Training
  • Python is a dynamic interrupted language which is used in wide varieties of applications. It is very interactive object oriented and high-level programming language.

  • Tableau Training
    Tableau Training
  • Tableau is a Software company that caters interactive data visualization products that provide Business Intelligence services. The company’s Head Quarters is in Seattle, USA.

  • what is pega
    PEGA Online Training
  • Pega Systems Inc. is a Cambridge, Massachusetts based Software Company. It is known for developing software for Customer Relationship Management (CRM) and Business process Management (BPM).

100% Secure Payments. All major credit & debit cards accepted.