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Big Data Data Analytics

Are You Data-Driven or Just Data-Informed?

As much as companies pride themselves on their analytics initiatives and using data to drive decision making, most companies are not as data-driven as they make themselves out to be. Despite the ample resources and hard data available to them, many executives still base their final decisions on intuition or the infamous gut feeling. 

While there are many ways to approach how you ultimately use data to drive decisions, the most common frameworks on the matter are data-driven decision making and data-informed decision making. In order to understand each approach and which is best for your organization, let’s explore the key differences between the two.

Data-Driven: What Does it Mean?

You’ve probably heard a lot of talk surrounding the importance of being data-driven, especially in light of responding to the recent global events. But what does being data-driven actually mean in practice? 

Being data-driven doesn’t mean solely investing in the newest data analytics tools or focusing entirely on having the highest quality data possible. Being data-driven means allowing your data to guide you in the right direction. Think of this as the metrics heavy approach where full faith is often placed in the numbers. This means basing decisions on key insights and making sure analysis is always taken into consideration. In this approach, your data will have the heaviest weight in the decision-making process over any other factor. 

Data-Informed: What Does it Mean?

On the other hand, being data-informed means using data to check or validate your intuition. You could say this approach primarily is used to confirm or deny that gut feeling when it comes to your decision-making. Here data isn’t necessarily the focus of the decision-making process but is instead a useful resource in proving or disapproving certain hypotheses.

What’s the Difference?

The primary difference between the approaches is the degree to which data is used and valued overall. Data-driven culture places data at the heart of your decision-making process, predominantly weighting the numbers and metrics involved. Data-informed culture is when data is used as one of many variables taken into account. Typically other factors include the context and behavior surrounding the data, however, this makes decisions vulnerable to bias or subjectivity. 

Which Approach is Better?

While the difference between the two approaches might seem minimal, the method by which your organization makes decisions can have significant long term effects. Which framework to adopt is dependent on the strategic objectives of your organization as well as the data you have available.

To get started, try asking yourself questions such as:

  • How much data do you have available? 
  • How confident are you in the data’s quality or reliability?
  • What type of problem are you trying to solve?
  • What are the overarching goals of your department or organization?

Conclusion

Regardless of these approaches, data isn’t the end all be all to successful decision making. It can’t predict the future or ensure your final decision will lead to an increased bottom line or record-breaking sales for the quarter. However, it does give you a better understanding of the situation at hand and can be an effective tool when determining your direction. 

Categories
Big Data Education

How Is Data Analysis Affecting the Education Sector in 2021?

When people think about Big Data, most of the ideas that come to mind involve businesses or governments trying to deal with large-scale issues. Many use cases involving Bid Data and analytics boil down to questions that can be answered if you happen to have a massive number of data points to work with. This means that the education sector is, in fact, one of the ripest areas for new analytics work to be done.

Why the Education Sector?

In the simplest terms, education and analytics go together well because of the need to teach hundreds of millions of both children and adults each year. From preschools to doctoral programs, most people on the planet now receive at least some formal education.

This means that there is data about people across many cultures, and that has the potential to act as a filter in performing analysis. One of the biggest concerns in the world of Big Data is that datasets are imputing biases. Organizations sharing data at the global level have access to information that can be used to filter out biases, normalize what performance should be and devise better class plans based on hard data science.

Similarly, academia has a much better tradition of sharing than other areas where analytics has made major inroads, especially finances. While folks on Wall Street are often worried about keeping their findings tightly guarded, educators generally want to share their discoveries as far and wide as possible.

What Are the Potential Use Cases?

Intervention

Intervention is an important job at all ages in the education process. A classic case where Big Data has been in use longer than the term “Big Data” has been around is in tracking high school and college dropout rates. While plenty of data on the subject has been available for decades, the opportunity to apply analytics has made an old use case into a fresh one.

Detecting wobbliness in student performance, for example, can be a challenge for a human being to do. It’s difficult for a single teacher to spot a student whose grades are starting to slip. At a macro scale, though, potential dropouts can be identified from the larger pool by matching them to previous students who matched the pattern. Schools can then direct resources such as study aid, financial help and even counseling toward students who might be at risk.

Career Paths

Even the best and most stable performers can feel challenged by picking a career path. Students can be tracked using multiple datasets and questionnaires to determine what career paths match their interests and what courses they should be taking. If a student wants to get into a STEM field, for example, a model can be worked up that will guide them in their high school course selection. This can ensure that they’ll be better prepared when they get to college. Similarly, students who are a bit tepid can be directed toward courses that will help them find their paths.

Forecasting

While it’s important to note that analytics systems aren’t oracles, there’s something to be said for trying to forecast students’ grades based on demographics, curricula, institutions and other factors. If the forecast for an elementary school student looks worrisome, interventions can then be arranged to make up for gaps that might only appear years or even decades down the road.

Likewise, the same approach can be used to intervene at schools that may be on the brink of trouble. This can be especially helpful when looking at problems like budgeting, teacher allotments, deploying resources and even shutting down schools. A district may be able to run multitudes of simulations to drill down to what is the ideal composition for a district. The goal should ultimately be to make the best use of the dollars available for each student.

Teaching Styles

One of the hardest issues to address in education is getting teachers who may be laggards to perform as the best educators do. While it’s tempting to tag these folks as “bad” teachers, the reality is often that they don’t quite have the magic formula for controlling a classroom and engaging with students. It’s also easy to dismiss the best teachers as talented, but it is possible to track what they do well. With this template in hand, interventions can be done during their time in universities and during teacher training to adapt their skills to what works.

How to Become Data-Centric

Every organization that moves toward analytics has to embrace a new culture. On one end, this means embracing data and its use. In some cases, this even means letting go of administrators who can’t get on board with analytics. Conversely, it’s also important to make sure that happy adopters appreciate the importance of dealing competently with issues like data privacy, biases, anonymization, errors and the limitations of analytics-driven decision-making.

It will take time to build an educational system that used data to improve life for both educators and students. The field, however, is ripe with available data. Education is a sector that is fertile ground for analytics, and there is also an installed based of interested educators who can plow the ground. With direction and resources, virtually any school can benefit from adopting Big Data and analytics.

Categories
Big Data Business Intelligence Data Analytics

How to Effectively Leverage Data Wrapping

What Is Data Wrapping?

Data wrapping is a strategy utilized by many leading companies to create higher profit margins on data they’ve obtained. Originally coined by a scientist at MIT, it involves “wrapping” tools with relevant data to boost its overall value. These tools can be B2B tools or consumer-facing ones. Examples include user dashboards that already contain a user’s interests or have data that will allow artificial intelligence to more easily determine the characteristics of users. 

Only recently has data wrapping begun to be incorporated into commercial products. Though data and tools have certainly been sold independently for decades, this combination is novel. Though the joint use of the two was initially only intended for business to business or “B2B” programs, some consumer-facing portals have ended up using it, as well.

Who Came Up With Data Wrapping?

The MIT Center for Information Systems Research often publishes ideas for people and companies to better monetize their data. A research scientist working for this agency coined the term. Once they had defined it well and come up with a way to explain it to the public, the Center published a blog post about the practice here.

Why Is Data Wrapping Important?

The idea of simply rolling existing consumer data in with existing business analytics tools might seem obvious. After all, these tools are meant to take data in, process it in a meaningful way for a business, and put out reports based on the data. Though it’s likely that some companies already were informally performing this to further monetize products, the fact that a prominent institution coined this term carries weight.

Now that it’s formally recognized as a legitimate profit strategy, more firms are likely to adopt this model, specifically when developing software. It also signals the end of the “products for people” era of open-source software and ushers in the “Information Age” once and for all. Unlike much of software development, which focuses on the end-user and what they want in products, data wrapping focuses exclusively on improving internal business processes. Some companies have had ethical questions regarding data wrapping and even legal questions surrounding its influence, but the MIT publication attempts to answer some of these questions.

This isn’t to say that businesses haven’t utilized data wrapping to help their customers harness its power, though. For example, a prominent bank in 2016 took advantage of data wrapping to allow consumers to see all of their spending inside their bank portal. All of their credit card, loan, and bank account transactions could be seen in one spot. This simplification of finances makes it far easier for the average person to find success in the personal finance domain. As one of the first customer-facing uses of data wrapping in 2016, many other corporations followed suit, and this is now almost standard in the banking world.

How Do Organizations Leverage Data Wrapping Today?

Since around 2016, organizations have been trying to figure out how to maximize profits through leveraging data wrapping. These companies can make a cross-sectional team of people from their IT departments, acquisitions groups, and analytics groups within their companies. 

These groups should then consider the needs of their business as well as their customers. We see this portrayed through the example of the all-inclusive banking portal. The bank foresaw customer utility in creating a compiled analytics dashboard for consumers.

The next step is internal implementation. This involves engineers and creative teams making pilot versions of these ideas. They should then be tested by the intended target audience. User experience feedback should then be harvested by the company to determine which data wrapping ideas hold the most promise.

Data wrapping has immense potential in the corporate world and has remained a game-changer when it comes to increasing the bottom line. Data science and software engineering intersect at just the right point to create yet more value in the world of technology and information.

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Big Data Business Intelligence Data Analytics

Why You Need to Modernize Your Data Platform

Effective use of data has become more important to modern businesses than many could have imagined a decade ago. As a piece on why every company needs a data strategy back in 2019 put it, data now “matters to any company” and is “one of our biggest business assets” in the modern environment. These are indisputable statements at this point, and they’re why every business hoping to succeed today needs to modernize its data platform (if it hasn’t already).

That said, even among those who like the idea of embracing data, many don’t quite understand what modernizing means in this sense. In this piece, we’ll look at why this needs to be done, who needs to do it, and what, ultimately, the process entails.

Why Modernize Data?

In very general terms, we addressed the why above: Effective data usage is indisputably one of the greatest assets available to businesses today. More specifically though, the role of data in business comes down to insight across various departments and operations. A robust data operation allows companies to understand needs and develop detailed processes for hiring; it enables marketing departments to make more targeted and fruitful efforts, and it helps management to recognize internal trends that drive or detract from productivity, and act accordingly. Modern data essentially streamlines business and makes it more efficient across the board.

We would also add that for smaller businesses, the why comes down to competition. The democratization of data in modern times is giving smaller companies the means to match larger competitors in certain efforts, and thus giving them a chance to keep pace.

Who Modernizes Data?

The answer to who brings about data modernization within a company will vary depending on the size and resources of the company at hand. For smaller businesses or those with particularly limited resources, it is possible to make this change internally. Much of the data modernization process comes down to using tech tools that can gather and catalog information in a largely automated fashion.

At the same time though, companies with more resources should consider that data analytics is a field on the rise, and one producing legions of young, educated people seeking work. Today, countless individuals are seeking an online master’s in data analytics specifically on the grounds that the business data analytics industry is in the midst of a projected 13.2% compound annual growth rate through 2022. Jobs in the field are on the rise, meaning this has become a significant market. This is all to say that it’s reasonable at this point for businesses seeking to modernize their data operations to hire trained professionals specifically for this work.

What Should Be Done?

This is perhaps the biggest question, and it depends largely on what a given business entails. For instance, for businesses that involve a focus on direct purchases from customers, data modernization should focus on how to glean more information at the point of sale, build customer profiles, and ultimately turn advertising into a targeted, data-driven effort. Businesses with large-scale logistics operations should direct data improvement efforts toward optimizing the supply chain, as Inzata has discussed before.

Across almost every business though, there should be fundamental efforts to collect and organize more information with respect to internal productivity, company finances, and marketing. These are areas in which there are always benefits to more sophisticated data, and they can form the foundation of a modernized effort that ultimately branches out into more specific needs. 

At that point, a business will be taking full advantage of these invaluable ideas and processes.  

Written by Althea Collins for Inzata Analytics

Categories
Big Data Data Preparation Data Quality

How to Solve Your Data Quality Problem

Why Does My Data Quality Matter?

One of the prime goals of most data scientists is to maintain the quality of data in their domains. Because business analytics tools rely on past data to make present decisions, it’s critical that this data is accurate. While it’s plenty easy to continually log information, you can risk creating data silos, large quantities of data that end up never really being utilized. 

Your data quality can directly impact whether and to what degree your company succeeds. Bad data can never be completely filtered, even with the best BI tools. The only way to base a future business decision on quality data is to only collect quality data in the first place. If you’re noticing that your company’s data could use a quality upgrade, it’s not too late!

What Are Some Common Mistakes Leading to Bad Data Quality?

By simply not engaging in a few practices, your company can drastically cut back on the volume of bad data you store. First, remember that you shouldn’t automatically trust the quality of data being generated by your current enterprise tool suite. This should be evaluated by professional data scientists to determine quality. Quite often, older tools generate more junk data than modern tools with better filtering technology.

Another common mistake is to allow different departments within your company to isolate their data away from the rest of the company. Of course, depending on the department and nature of your company, this could be a legal requirement. However, if not, you should ensure that there’s a free flow of data across business units. This can create an informal “checks and balances” system and help prevent those data silos from building or destroy existing ones.

How Can I Identify Bad Data?

Keeping in mind that, even with the best practices in place, it’s unrealistic to expect a total elimination of risk associated with bad data being collected. With the volume of enterprise tools in usage combined with even the most minor human error in data entry having the potential to create bad data, a small amount should be expected. That’s why it’s important to remain vigilant and regularly check for these items in your existing data and purge those entries if found:

  • Factually False Information – One of the more obvious examples of bad data is data that’s entirely false. Almost nothing could be worse to feed into your BI tools, making this the first category of bad data to remove if found.
  • Incomplete Data Entries – Underscoring the importance of mandating important database columns, incomplete data entries are commonly found in bad data. These are entries that cannot be fully interpreted without the information that’s missing being filled in.
  • Inconsistently Formatted Information – Fortunately, through the power of regular expressions, this type of bad data can often be solved fairly quickly by data scientists. A very common form of this is databases of telephone numbers. For example, even if all of the users are in the same country, different formats like (555) – 555-5555, 5555555555, 555-5555555, etc., are often present when any string is accepted as a value for the column.

What Can I Do Today About Bad Data?

It’s crucial that your company comes up with a viable, long-term strategy to rid your company of bad data. Of course, this is typically an intensive task and isn’t accomplished overnight. Most importantly, the removal of bad data isn’t simply a one-time task. It must be something that your data staff is continuously evaluating in order to stay in place and remain effective.

After an initial assessment of your company’s data processing practices and the volume of bad data you have, a professional firm can consult with your data team for technical strategies they can utilize in the future. By combining programmatic data input and output techniques with employee and company buy-in, no bad data problem is too out of control to squash.

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Big Data Business Intelligence Data Analytics

Is Big Data the Key to Optimizing the Supply Chain?

One of the biggest challenges facing many companies is figuring out how to optimize their supply chains. For obvious reasons, they want to strike a balance between keeping costs down and making sure they have the resources required to continue to operate. As became evident during the early months of the COVID-19 outbreak, supply chains, especially global ones, can be tricky beasts to tame.

Maintaining the right balance between efficiency and resilience is challenging even in the best of economies. One solution many enterprises now use to stay nimble in the face of evolving circumstances is Big Data. 

By using computing power, algorithms, statistical methods, and artificial intelligence (AI), a company can condense the massive amount of available information about supply chains into comprehensible insights. That means making decisions quickly and without sacrificing optimization or resiliency. Let’s take a closer look at this trend and what it might mean for your operations.

What Can Big Data Do?

Computing resources can be focused on a handful of supply chain-related issues. These include jobs like:

  • Forecasting supply and demand
  • Proactive maintenance of infrastructure elements like warehouses and transportation
  • Determining how to best stow freight
  • Making pricing and ordering decisions
  • Inspecting items and identifying defects
  • Deploying workforce members, such as dockworkers and truck drivers, more efficiently

Suppose you run a consumer paper products company. You may need to scour the world for the best total price for a wood sourcing shipment. This may mean using Big Data systems to collect information about prices down the road and halfway across the world. Likewise, the company would need to make decisions about whether the costs of transporting and storing the wood pulp would be effective. Similarly, they’d need to establish confidence that each shipment would arrive on time.

How to Build the Needed Big Data Resources

First, it’s critical to understand that taking advantage of big data is about more than just putting a bunch of machines to work. A culture needs to be established from the top down at any organization. This culture has to:

  • Value data and insights
  • Understand how to convert insights into actions
  • Have access to resources like data pools, dashboards, and databases that enable their work
  • Stay committed to a continuous process of improvement

A company needs data scientists and analysts just as much as it needs computing power. C-level executives need to be onboarded with the culture, and they need to come to value data so much that checking the dashboards, whether it be on their phones or at their desk, is a routine part of their duties. Folks involved with buying, selling, transporting, and handling items need to know why supplies are dealt with in a particular way.

In addition to building a culture, team members have to have the right tools. This means computer software and hardware that can process massive amounts of data, turn it into analysis, and deliver the analysis as insights in the form of reports, presentations, and dashboards. Computing power can be derived from a variety of sources, including servers, cloud-based architectures, and even CPUs and GPUs on individual machines. 

Some companies even have embraced edge intelligence. This involves using numerous small devices and tags to track granular data in the field, at the edge of where data gathering begins. For example, edge intelligence can be used to track the conditions of crops. Companies in the food services industries can then use this data to run predictive analysis regarding what the supply chain will look like by harvest time.

What Are the Benefits?

Companies can gain a number of benefits from embracing Big Data as part of their supply chain analysis. By studying markets more broadly, they can reduce costs by finding suppliers that offer better rates. Predictive systems allow them to stock up on key supplies before a crunch hits or let slack out when the market is oversupplied. Tracking customer trends makes it easier to ramp up buying to meet emerging demand, driving greater profits.

Developing Big Data operations separates good businesses from great ones. With a more data-driven understanding of the supply chain, your operation can begin finding opportunities rather than reacting to events. By putting Big Data resources in place, supply chain processes can become more optimized and resilient.

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Big Data Business Intelligence Data Analytics

5 Strategies to Increase User Adoption of Business Intelligence

Companies are turning to new strategies and solutions when it comes to using their data to drive decisions. User adoption is essential to unlocking the value of any new tool, especially in the field of business intelligence. However, like with most things, people are commonly resistant to change and often revert back to their original way of doing things. So how can organizations avoid this problem? Let’s explore five strategies that will help to effectively manage change and increase user adoption of business intelligence. 

Closely Monitor Adoption

It’s no secret that people are hesitant when introducing new tools and processes. If you don’t keep a close eye on the transition to a new tool, users will likely continue to use outdated methods such as disparate and inaccurate spreadsheets. Make sure those involved are working with the solution frequently and in the predetermined capacity. If you notice a few individuals rarely using the tool, reach out to discuss their usage as well as any concerns they might have surrounding the business intelligence solution. 

Top-Down Approach

Another strategy to increase user acceptance is the top-down approach. Buy-in from executives and senior stakeholders is crucial to fostering adoption, whether it be throughout your team or the entire organization. 

Consider bringing on an executive to champion the platform. This will empower other end-users to utilize the tool and recognize its overarching importance to the business moving forward. Leadership should also communicate heavily the why behind moving to a new solution. This will align stakeholders and help them to understand the transition as a whole.  

Continuous Learning & Training

Training is key to the introduction of any new processes or solutions. But you can’t expect your employees to be fully onboarded after one intensive training session. Try approaching the onboarding process as a continuous learning opportunity.

Implement weekly or bi-weekly meetings to allow everyone involved to reflect on what they’ve learned and collectively share their experience. Additionally, allotting time for regular meetings will give people the chance to ask questions and troubleshoot any possible problems they’ve encountered. 

Finding Data that Matters

Demonstrate the power of using data to drive decision making by developing a business use case. This application will allow you to establish the validity of the BI solution and show others where it can contribute value across business units. Seeing critical business questions answered will assist in highlighting the significance of the tool and potentially spark other ideas across users.

Remove Alternatives

A more obvious way to increase adoption is to remove existing reports or tools that users could possibly fall back on. Eliminating alternatives forces users to work with the new solution and ultimately familiarize themselves with the new dashboards.

Conclusion

Overall, there are many effective strategies when it comes to increasing user adoption. The downfall of many companies when it comes to introducing new solutions is their focus on solely the technical side of things. The organizational change and end-user adoption are just as crucial, if not more important, to successful implementation. Consider these approaches next time you’re introducing a new business intelligence solution. 

Categories
Big Data Business Intelligence

ETL vs. ELT: Critical Differences to Know

ETL and ELT are processes for moving data from one system to another. Both processes involve the same 3 steps, Extraction, Transformation, and Loading. The fundamental difference between the two lies in the order in which the data is loaded into the data warehouse and analyzed.

What is ETL?

ETL has been the traditional method for data warehousing and analytics. It is used to synthesize data from more than one source in order to build a data warehouse or data lake. First, the data is extracted from RDBMS source systems, which is the extraction stage. Next is the transformation stage, where all transformations are applied to the extracted data, and only then is it loaded into the end-target system to be analyzed by business intelligence tools.

What is ELT?

ELT involves the same three steps as ETL, but in ELT, the data is loaded immediately after extraction, before the transformation stage. With ELT, all data sources are aggregated into a single, centralized repository. With today’s cloud based data warehouses being scalable and separating storage from compute resources, ELT makes more sense for most modern businesses. ELT allows for unlimited access to all of your data by multiple users at the same time, saving both time and effort.

Benefits of ELT

Simplicity: Transformations in the data warehouse are generally written in SQL, which is the traditional language for most data applications. This means that anyone who knows SQL can contribute to the transformation of the data.

Speed: All of the data is stored in the warehouse and will be available whenever it is needed. Analysts do not have to worry about structuring the data before loading it into the warehouse. 

Self service analytics: When all of your data is linked together in your data warehouse you can then easily use BI tools to drill down from an aggregated summary of the data to the individual values underneath.

Bug Fixes: If you discover any errors in your transformation pipeline, you can simply fix the bug and re-run just the transformations with no harm done. With ETL however, the entire process would need to be redone.

Categories
Big Data Data Analytics Data Preparation

Data Wrangling vs. Data Cleaning: What’s the Difference?

There are many mundane tasks and time-consuming processes that data scientists must go through in order to prepare their data for analysis. Data wrangling and data cleaning are both significant steps within this preparation. However, due to their similar roles in the data pipeline, the two concepts are often confused with one another. Let’s review the key differences and similarities between the two as well as how each contributes to maximizing the value of your data.

What is Data Wrangling?

Data wrangling, also referred to as data munging, is the process of converting and mapping data from one raw format into another. The purpose of this is to prepare the data in a way that makes it accessible for effective use further down the line. Not all data is created equal, therefore it’s important to organize and transform your data in a way that can be easily accessed by others.

While an activity such as data wrangling might sound like a job for someone in the Wild West, it’s an integral part of the classic data pipeline and ensuring data is prepared for future use. A data wrangler is a person responsible for performing the process of wrangling.

Benefits of Data Wrangling

Although data wrangling is an essential part of preparing your data for use, the process yields many benefits. Benefits include:

  • Enhances ease of access to data
  • Faster time to insights
  • Improved efficiency when it comes to data-driven decision making

What is Data Cleaning?

Data cleaning, also referred to as data cleansing, is the process of finding and correcting inaccurate data from a particular data set or data source. The primary goal is to identify and remove inconsistencies without deleting the necessary data to produce insights. It’s important to remove these inconsistencies in order to increase the validity of the data set.

Cleaning encompasses a multitude of activities such as identifying duplicate records, filling empty fields and fixing structural errors. These tasks are crucial for ensuring the quality of data is accurate, complete, and consistent. Cleaning assists in fewer errors and complications further downstream. For a deeper dive into the best practices and techniques for performing these tasks, look to our Ultimate Guide to Cleaning Data.

Benefits of Data Cleaning

There is a wide range of benefits that come with cleaning data that can lead to increased operational efficiency. Properly cleansing your data before use leads to benefits such as:

  • Elimination of errors 
  • Reduced costs associated with errors
  • Improves the integrity of data
  • Ensures the highest quality of information for decision making

When comparing the benefits of each, it’s clear that the goals behind data wrangling and data cleaning are consistent with one another. They each aim at improving the ease of use when it comes to working with data, making data-driven decision making faster and more effective as a result.

What’s the Difference Between Data Wrangling and Data Cleaning?

While the methods might be similar in nature, data wrangling and data cleaning remain very different processes. Data cleaning focuses on removing inaccurate data from your data set whereas data wrangling focuses on transforming the data’s format, typically by converting “raw” data into another format more suitable for use. Data cleaning enhances the data’s accuracy and integrity while wrangling prepares the data structurally for modeling. 

Traditionally, data cleaning would be performed before any practices of data wrangling being applied. This indicates the two processes are complementary to one another rather than opposing methods. Data needs to be both wrangled and cleaned prior to modeling in order to maximize the value of insights.

Categories
Big Data Business Intelligence Data Analytics

Relational vs. Multidimensional Databases: Why SQL Can Impair Your Analytics

What is a Relational Database?

A relational database is a type of database that is based on the relational model. The data within a relational database is organized through rows and columns in a two-dimensional format.

The relational database has been used since the early 1970s, and is the most widely used database type due to its ability to maintain data consistency across multiple applications and instances. Relational databases make it easy to be ACID (Atomicity, Consistency, Isolation, Durability) compliant, because of the way that they handle data at a granular level, and the fact that any changes made to the database will be permanent. SQL is the primary language used to communicate with relational databases.

Below is an example of a two dimensional data array. Each axis in the array is a dimension, and each entry within the dimensions is called a position.

Store Location Product 1 Product 2
New York 83 68
London 76 97
As you can see we have an X and a Y axis, with each position corresponding to a Product and a Store Location.

What is a Multidimensional Database?

A multidimensional database is another type of database that is optimized for online analytical processing (OLAP) applications and data warehouses. It is not uncommon to use a relational database to create a multidimensional database.

As the name suggests, multidimensional databases contain arrays of 3 or more dimensions. In a two dimensional database you have rows and columns, represented by X and Y. In a multidimensional database, you have X, Y, Z, etc. depending on the number of dimensions in your data. Below is an example of a 3-Dimensional Data Array represented in a relational table and in 3-D.

Item Store Location Customer Type Quantity
Product 1 New York Public 47
Product 2 New York Private 20
Product 1 London Public 36
Product 2 London Public 69
Product 1 New York Private 36
Product 2 New York Public 48
Product 1 London Private 40
Product 2 London Private 28

The third dimension we incorporated into our data is “Customer Type” which tells us whether our customer was public or private.

We can then add a fourth dimension to our data, which in this example is time. This allows us to keep track of our sales, giving us the ability to see how each product is selling in relation to each store location, customer type, and time.

What are the Advantages and Disadvantages of Relational Databases?

Advantages: 

Single Data Locations: A key benefit to using relational databases is that data is only stored in one location. This means that each department will pull the data from a single collective source, rather than each department having their own record of the same information. This also means that when data is updated by one department, that change is reflected across the entire system, so that everybody’s data is always updated.

Security: Certain tables can be made available only to who needs it, which means more security for sensitive information. For example, it is possible for only the shipping department to have access to client addresses, rather than making that information available tclient addresses, rather than making that information available to all departments.

Disadvantages:

Running queries: When it comes to running queries, the simplicity of relational databases comes to an end. In order to access data, complex joins of many tables may need to be made, and even simple queries may need to be structured in SQL by a professional.

Live System Environments: Running a new query, especially ones that use DELETE, ALTER TABLE, and INSERT, can be incredibly risky when using a live system environment. The slightest error can mess everything up across the entire system, leading to loss of time and productivity.

What are the Advantages and Disadvantages of Multidimensional Databases?

Advantages:

Similar Information is Grouped: All similar information is grouped into a single dimension, keeping things organized and making it easy to view or compare your data.

Speed: Overall, using a multidimensional database will be faster than using a relational database. It may take longer to set up your multidimensional database, but in the long run, it will process data and answer queries faster.

Easy Maintenance: Multidimensional databases are incredibly easy to maintain, due to the fact that data is stored the same way it is viewed: by attribute. 

Better Performance: A multidimensional database will achieve better performance than a relational database with the same data storage requirements. Database tuning allows for further increased performance. Although the database cannot be tuned for every single query, it is significantly easier and cheaper than tuning a relational database.

Disadvantages:

Complexity: Multidimensional databases are more complex, and may require experienced professionals to understand and analyze the data to the fullest extent.

Polk County Schools Case Study in Data Analytics

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Polk County Case Study for Data Analytics Inzata Platform in School Districts

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Guide to Cleaning Data with Excel & Google Sheets Book Cover by Inzata COO Christopher Rafter