YongJin Lee

Engineering Data, Investing in Tomorrow, Journeying Through Life.

Why Understanding Source Data Is Important

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A Recurring Challenge in Data Management

In the intricate realm of data management and analytics, a pattern has consistently surfaced in my experiences: a rush of professionals hastily charting development strategies and pipelines without a deep, intricate understanding of the source data they’re handling. I’ll candidly admit – I’ve also been guilty of this oversight. This oversight, I believe, is akin to missing the essential ingredient in a masterful dish.

Lessons from the Culinary Universe

Let’s borrow an analogy from the culinary universe to illuminate this point further. Imagine being an acclaimed chef, gearing up to prepare an exquisite dish. Would you ever consider randomly selecting ingredients without ascertaining their quality, freshness, or even their relevance to the dish you have in mind? Likely not. This meticulousness in ingredient selection is strikingly parallel to the precision needed to understand your source data. Much like a misplaced ingredient, a single overlooked detail in data can skew outcomes, leading not just to minor glitches but often to overarching strategic blunders. As we dive deeper into the complexities of data, we’ll find that the foundational groundwork is just as crucial.

source data are like ingredients

The Importance of Groundwork and Exploration

Admittedly, even with utmost diligence, the door to errors remains ajar. But imagine the magnitude of potential blunders when there’s a complete absence of groundwork. The stakes are not just high—they skyrocket. As the foundation grows with more layers and functionalities, the lack of understanding can potentially magnify the chaos manifold. This highlights why exploratory data analysis is not just a recommended step but an absolute imperative. And as we transition into discussing tools, we’ll see that while they aid our process, understanding remains paramount.

The Role of Tooling: It’s Not the Silver Bullet

People often ask if better tooling can replace some of the tasks they traditionally handle. As a tech lover, I warmly embrace advanced tools. However, it’s crucial to recognize that while these tools augment our capabilities, they don’t replace the foundational understanding and skill required. For instance, I relish the Full Self Driving (FSD) capacity feature in our Tesla Model Y, but it doesn’t replace my vigilance on the road.

BI Tools: A Case Study in Expectations vs. Reality

This sounds a bit like a different topic. However, this was the real-life example I could think of. In my career, I’ve observed a telling scenario which I believe resonates with many. Analysts at a certain company expressed dissatisfaction with their existing BI tool, lamenting the difficulty in crafting meaningful dashboards. The tool, in their opinion, was not intuitive enough. Their voiced concerns were heard, and the decision was made to onboard Tableau—a renowned BI tool they had been eyeing. Not only were Tableau licenses acquired, but the company also invested in extensive paid training sessions to ensure the team was well-equipped to leverage the new tool to its fullest potential.

But here’s the twist: despite the company’s investments in both the software and the training, the team still found themselves stumped. They had to bring in an external contractor to design the dashboards they believed they could create post-training. This underscores a pivotal lesson: no matter how sophisticated a tool might be, its efficacy is closely tied to the foundational understanding of the user. While Tableau brought in new capabilities, the crux of the issue lay in the ability to grasp and manipulate the underlying data—a challenge that no tool can fully circumvent on its own.

The key takeaways were:

  • Sophisticated tools augment but don’t replace foundational understanding. Not today, at least.
  • Investment in training is vital, but so is mastering the basics.
  • The right tool in the hands of someone who doesn’t understand the data is similar to a high-end kitchen appliance in the hands of someone who can’t cook.


Of course! Incorporating the sentiment that it’s unusual for data professionals not to use data more extensively in crafting data products makes a compelling point.


Harnessing Data for Data Products: A Missed Opportunity?

In our evolving data-centric landscape, what strikes me as particularly paradoxical is the restrained use of data in creating more intricate and robust data products. We’re amidst a data revolution, surrounded by vast reservoirs of information, yet the irony is unmistakable: many data professionals are not leveraging this treasure trove to its fullest potential.

Think about it – if data is our modern goldmine, shouldn’t we be using it as the primary resource in crafting more innovative, responsive, and intelligent data products? It’s akin to a carpenter having access to the finest wood but only using it for a fraction of their creations. There’s a bounty of insights waiting to be unearthed, patterns to be discovered, and solutions to be developed, all resting within the data itself.

Let’s challenge this status quo. It’s high time we looked inward, into the very data we manage and analyze, to inspire and craft the next generation of data products. By intertwining a deep understanding of source data with the tools at our disposal, we can spearhead a new era of data-driven innovations.

Conclusion: Data as Our Modern Goldmine

In today’s age, where data isn’t just a tool but the very lifeblood of industries, regarding it as a valuable asset is paramount. Comprehending your source data transcends being a preliminary checkpoint; it’s a cornerstone. Let’s champion its significance and ensure that its crucial role isn’t shadowed or sidelined. 📊🔍