I have been hearing the use of term “data” in a
rather vague form in MIS (management information system), ERP (enterprise
resource planning) and so on. But, during the last four years it has gathered
increase attention by the industries across geographies. Its advent is in sync
with growth of data users across the globe, primarily from emerging economies.
Common public has grown attached with internet and Smartphone to such an extent
that makes it worthy to note exponential rise in the user base. While, at first
this looked like a trend that was forth coming, but lately it has transcended
to a different domain of its own which is IoT (internet-of things). Vast amount
of digital footprints left by individuals operating on the internet with use of
even remote devices are up for grabs to analyse. An article dating back to 2014
showed that IDCs digital universe predicted growth in world’s data to 44
zettabytes by 2020 and IoT would contribute 10% of it. That is a huge number in
absolute sense. Data storage and securities are the issues that come along with
it and require analysing them on the fly.
So there is huge data, but how does one make
sense out of it. There is lot of noise in the data, which it makes it a gruesome
task to explore and visualise the findings. Statistics is the basic technique
that has been used to analyse the data, but data science has added new
dimension to the existing knowledge framework by proposing a scientific means
to explore the data and present its findings. It is confusing to define
boundaries associated with buzzwords such as data science, machine learning or
artificial intelligence. At, first it occurred to me that they are almost the
same, but there is a fine line that defines them into unique specialisations.
Same is the case with data analysis and analytics. Once, we are given data
there are two ways of basic analysis i.e. descriptive and prescriptive. The
descriptive analysis reports the data in its crude form and provides information
evident at the first instance. But, there is nothing great with it; we want to
know something that is not evident from first look. Prescriptive analysis is a
diagnostics mechanism that provides recommendations and inferences by delving
much deeper into data. While, these two mechanisms have their proven worth at
different phases of decision making, the important thing is they both are data
analysis. Usual MIS reporting to upper management is a process and more or less
doesn’t change with time; it is a form of data analysis. Visualisations have
become so important for managers that, sometimes an inferential chart is best
way to send the message.
Performing data analysis on humongous data is not
a feasible alternative, rather one must move towards a more detailed manner for
evidence based analysis. Data analysis is a subset of data analytics that
initiates with basic data cleaning, analysis and further moves towards applying
specific statistical tools and machine learning for providing better insights.
It is becoming an integral part of industry decision making to use data
analytics for both quantitative and qualitative analysis. It would be right to
say that data analysis has moved ahead and become part of a larger data
analytics domain, that is suitable answer to future data explosion.
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