5 Challenges Of Big Data Analytics in 2021

Many organizations have problems using business intelligence analytics on a strategic level. Here are the top big data analytics challenges they encounter.

While this year holds great promise for big data analytics, there are some obstacles to overcome. So, it is time to deep dive through the most typical big data analytics issues, investigate possible root causes, and highlight the potential solutions to those problems.

It’s always better to think smart from the very beginning when your big
data analytics system is yet at the concept stage. Any fixes might be quite expensive
to implement once the system is already up and running.

In today’s digital world, companies embrace big data business analytics to improve decision-making, increase accountability, raise productivity, make better predictions, monitor performance, and gain a competitive advantage. However, many organizations have problems using business intelligence analytics on a strategic level. According to Gartner, 87% of companies have low BI (business intelligence) and analytics maturity, lacking data guidance and support. The problems with business data analysis are not only related to analytics by itself but can also be caused by deep system or infrastructure problems.

See also: Why Data Intensity Matters in Today’s World

1) Business
analytics solution fails to provide new or timely insights

Imagine you have invested in an analytics solution striving to get
unique insights that would help you make smarter business decisions. But at
times, it seems, the insights your new system provides are of the same level
and quality as the ones you had before. This issue can be addressed through the
lens of either business or technology, depending on the root cause.

Lack of data: Your analytics does not have enough data to
generate new insights. This may either be caused by the lack of data
integrations or poor data organization.

In this case, it makes sense to run a data audit and ensure that
existing data integrations can provide the required insights. The integration
of new data sources can eliminate the lack of data as well. It’s also worth
checking how raw data comes into the system and make sure that all possible
dimensions and metrics are exposed for analytics. Finally, data storage
diversity might also be a problem. One can cope with this issue by introducing
a Data Lake.

Long data response: This usually happens when you need to receive
insights in real-time, but your system is designed for batch processing. So,
the data you need here and now is not yet available as it is still being
collected or pre-processed.

Check if your ETL (Extract, Transform, Load) is able to process data
based on a more frequent schedule. In certain cases, batch-driven solutions
allow schedule adjustments with a 2x times boost. Another option is to use an
architecture approach called Lambda Architecture, which allows you to combine
the traditional batch pipeline with a fast real-time stream.

Old approaches applied to a new
system: You’ve transferred
your typical reports to the new system. But it would be difficult to get new
answers by asking old questions. This is mostly a business issue, and possible
solutions to this problem differ a lot case-by-case. The best thing is to
consult a subject matter expert who has broad experience in analytical
approaches and knows your business domain.

2) Inaccurate
analytics

There’s nothing worse to a business than inaccurate analytics, and this
issue needs to be addressed as soon as possible.

Poor quality of source data: If your system relies on data that has defects,
errors, or is incomplete, you’ll get poor results. Data quality management and
an obligatory data validation process covering every stage of your ETL process
can help ensure the quality of incoming data at different levels (syntactic,
semantic, grammatical, business, etc.). It will enable you to identify and weed
out the errors and guarantee that a modification in one area immediately shows
itself across the board, making data pure and accurate.

System defects related to the
data flow: This happens when
the requirements of the system are omitted or not fully met due to human error
intervention in the development, testing, or verification processes.

High-quality testing and verification of the development lifecycle
reduces the number of such problems, which in turn minimizes data processing
problems. It might happen that your analytics provide inaccurate results even
when working with high-quality data. In this case, it makes sense to run a
detailed review of your system and check if the implementation of data
processing algorithms is fault-free.

3) Using big data analytics is complicated

The next problem may bring all the efforts invested in creating an
efficient solution to naught. If using data analytics becomes too complicated,
you may find it difficult to extract value from your data. The complexity issue
usually boils down either to the UX (when it’s difficult for users to navigate
the system and grasp info from its reports) or technical aspects (when the
system is over-engineered). Let’s get this sorted out.

Messy data visualization: The level of complexity of your reports is too
high. It’s time-consuming or hard to find the necessary info. This can be fixed
by engaging a UI/UX specialist, which will help you to create a compelling
flexible user interface that is easy to navigate and work with.

The system is overengineered: The system processes more scenarios and gives
you more features than you need, thus blurring the focus. That also consumes
more hardware resources and increases your costs. As a result, users utilize
only a part of the functionality. The rest hangs like dead weight, and it seems
that the solution is too complicated.

It is important to identify excessive functionality. Get your team
together and define key metrics: what exactly you want to measure and analyze,
what functionality is frequently used, and what is your focus. Then just get
rid of all unnecessary things. Involving an external expert from your business
domain to help you with data analysis may be a very good option as well.

4) Long system
response time

The system takes too much time to analyze the data even though the input
data is already available, and the report is needed now. It may not be so
critical for batch processing, but for real-time systems, such delay can cost a
pretty penny.

Inefficient data organization: Perhaps your data is organized in a way that
makes it very difficult to work with. It’s better to check whether your data
warehouse is designed according to the use cases and scenarios you need. In
case it is not, re-engineering will definitely help.

Problems with big data analytics
infrastructure and resource utilization: The problem can be in the system itself, meaning that it has reached its
scalability limit. It also might be that your hardware infrastructure is no
longer sufficient.

The simplest solution here is upscaling, i.e., adding more computing
resources to your system. It’s good as long as it helps improve the system
response within an affordable budget and as long as the resources are utilized
properly. A wiser approach from a strategic viewpoint would be to split the
system into separate components and scale them independently. But do remember,
that this may require additional investments into system re-engineering.

5) Expensive
maintenance

Any system requires ongoing investment in its maintenance and
infrastructure. And every business owner wants to minimize these investments.
Thus, even if you are happy with the cost of maintenance and infrastructure,
it’s always a good idea to take a fresh look at your system and make sure you
are not overpaying.

Outdated technologies: New technologies that can process more data
volumes in a faster and cheaper way emerge every day. Therefore, sooner or
later, the technologies your analytics is based on will become outdated,
require more hardware resources, and become more expensive to maintain than the
modern ones. It’s also more difficult to find specialists willing to develop
and support solutions based on legacy technologies.

The best solution is to move to new technologies. In the long run, they
will not only make the system cheaper to maintain but also increase
reliability, availability, and scalability. It’s also important to perform a
system redesign step-by-step, gradually substituting old elements with the new
ones.

Non-optimal infrastructure: Infrastructure is the cost component that
always has room for optimization. If you are still on-premise, migration to the
cloud might be a good option. With a cloud solution, you pay-as-you-use,
significantly reducing costs. If you have any restrictions related to security,
you can still migrate to a private cloud. If you are already on the cloud,
check whether you use it efficiently and make sure you have implemented all the
best practices to cut the spending.

The system that you have chosen
is overengineered: If you
don’t use most of the system capabilities, you continue to pay for the
infrastructure it utilizes. Revising business metrics and optimizing the system
according to your needs can help. You can replace some components with simpler
versions that better match your business requirements.

Instead of the
conclusion

Adjusting an existing business analytics platform is possible but can
turn into a quite challenging task. If you miss something at the new solution
design and implementation, it can result in a loss of time and money.