Structure is one component of Big data. Earlier things were different and we mainly relied on structured data like the one where we can classify data into tables and charts and neatly organise it like sales transactions by customers or region, etc while the less structured data, such as video content, text files, photographs, media etc. was largely ignored. With big data, we today have the ability to analyse and utilise a large diversity of data including biometric data, written text, photographs, spoken words, even the tone in our voice and video content.
Speed is another component. Every minute we click almost 2 million likes on Facebook, send over 300 million emails, up-load 200K photos to Facebook, add 100 hours of video to YouTube and send almost 300K tweets and not only this, if we talk about daily searches on Google or any other search platform, it would add up to almost 5 billion.
According to IBM, about 90% of the data in the world today has been created in the last two years alone and that's because every day we are creating around 2.5 quintillion bytes of data. This data congregates from everywhere: social media posts,purchase transaction records, cell phone GPS signal, digital pictures and videos and sensors used to gather climate information to name a few. This is what we mean by the big data. It has created a flood of data that when categorised,analysed and organised would reveal habits and trends about us and of society at large. Size is just one component and its not just about the size of data but also refers to the size of available data to access methods, analyse and manipulate technologies to make sense of that data.
The increasing data is presenting both opportunities and problems. The pros being, having a customers complete data would let companies better customize their marketing efforts and products in order to build highest level of satisfaction with the customers. Companies collect huge amounts of data to get a richer and deeper analysis of everything. The cons of big data would be the overload and noise that is brings. With big data, your personal information gets on sale. Structured data is easily sorted and stored compared to the unstructured data because it consists of videos, emails and text documents that require more intricate techniques to be applied to make it more useful. And it also includes other forms of data, such as information from search engines and fitness gadgets that are unregulated and have addresses and identities attached.