Variety Unstructured Data-refers to information that either does not have a pre-defineddata model or is not organized in a predefined manner. Unstructured informationis typically text-heavy. In other words unstructured data is something that is at theother end of the spectrum. It might be in any form: text, audio, video. We definitelydon’t know from looking at the data what it means ,unless we apply humanunderstanding to it. Examples of Unstructured Data • Book• Story• Heavy text• audio• video• RSS Feeds• Word documents• Excel Spreadsheets• Email messagesStructured Data-Data that resides in a fixed field within a record or file is calledstructured data. This includes data contained in relational databases andspreadsheets. Structured data has the advantage of being easily entered, stored,queried and analyzed. Examples of Structured Data: • Census records (birth, income, employment, place etc.)• Library Catalogues (date, author, place, subject, etc)• Phone numbers (and the phone book)
Volume :Volume pretty much refers to the number of amount of data. Like PB, TB, GB, MB, KBand so on.Volume pretty much consists of• Records• Transactions• PB, TB, GB, MB, KB• Tables, FilesWe currently see the exponential growth in the data storage, as the data is now morethan text data. We can find data in the format of videos, music and large images onour social media channels. It is very common to have Terabytes and Petabytes of thestorage system for enterprises. As the database grows the applications andarchitecture built to support the data needs to be reevaluated quite often. Sometimesthe same data is re-evaluated with multiple angles and even though the original datais the same the new found intelligence creates explosion of the data. The big volumeindeed representsBig Data.
Velocity : Velocity Rates • Real Time (Fastest)• Near Real Time• Periodic• Batch (Slowest)Real Time- a real time big data analytics platform, delivers ultra-fast, interactiveanalytical results with sub-second response time.
Big Data and Its Applications 