DATA TECH DEBT
Mustafa Qizilbash
Looking for Data & AI related Opportunities!, Author, Data & AI Practitioner & CDMP Certified, Innovator of Four 4s Formula, DAC Architecture, PVP Approach
Technical debt, often abbreviated as "tech debt," is a metaphorical concept in software development that refers to the implied cost of additional work created when software is built or modified in a way that prioritizes short-term goals or speedy delivery over long-term sustainability. It is similar to financial debt, where you borrow money with the understanding that you will pay it back with interest.
Technical debt arises when developers choose a quick and easy solution that may solve an immediate problem but is not necessarily the best or most efficient in the long run. This can result from factors such as tight deadlines, evolving requirements, or a need for rapid prototyping.
There are several types of technical debt, including:
·???????? Code Debt: Poorly written or poorly structured code that might work but is difficult to understand, maintain, or extend.
·???????? Design Debt: Rushed or inadequate system or software architecture that may lead to inefficiencies, difficulties in adding new features, or challenges in maintaining the system.
·???????? Testing Debt: Insufficient or inadequate testing that might result in undetected bugs or errors, making it harder to ensure the software's reliability.
·???????? Documentation Debt: Lack of proper documentation, making it difficult for developers to understand and work with the codebase.
In the context of the data world, technical debt refers to compromises or shortcuts taken during the development, maintenance, or management of data-related systems and processes. These compromises can lead to challenges in data quality, data integration, and overall data management.
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Here are some specific examples of technical debt in the data world:
·???????? Data Quality Debt: Imagine you're working on a school project where you need information about students' grades. The issue of technical debt in this context would be like having messy or wrong information about the grades. This happens when the process of cleaning up or checking the data is done too quickly or not thoroughly enough. For example, if you rush to type in grades and make mistakes or forget to double-check, you end up with inaccurate information. The impact is a bit like getting the wrong grades on your report card. Imagine studying hard for a test, but your report card shows the wrong scores. It could lead to confusion, your parents getting the wrong impression of your performance, and it becomes tough to trust the accuracy of the grades. So, technical debt in data, in simple terms, is when the information you have is not properly cleaned up or checked, making it hard to rely on and causing problems in making the right decisions based on that data.
·???????? Data Integration Debt: Imagine you're working on a big school project, and you need information from different friends who are helping you. The issue here is a bit like when the information from your friends doesn't quite fit together smoothly. This can happen when you quickly try to put everything together without thinking about the different ways your friends might present their information. The cause of this issue is using fast solutions that don't consider the different formats or structures your friends might use. The impact of this "data mixing" problem is that it becomes hard to see the big picture of your project because the information doesn't fit together neatly. It's like trying to solve a puzzle with mismatched pieces. Also, you might end up with some information being repeated, causing confusion. So, technical debt in this case is like not taking the time to make sure all the pieces of information from your friends fit well together, making your project a bit messy and harder to understand.
·???????? Data Architecture Debt: Let's think about building a treehouse for a school project, and you need a good plan to make it strong and cool. The issue with data architecture is like having a not-so-great plan for your treehouse. This happens when there isn't enough time or resources to design a really good and flexible plan that can handle changes. So, the cause is a bit like not having enough time to think about all the cool features you might want, like a slide or a secret door. The impact of this is kind of like trying to add these cool features later and realizing it's really tricky because your plan wasn't super well-thought-out. You might end up with a treehouse that doesn't quite fit your ideas, and it takes more time to add new stuff. So, technical debt in data architecture is a bit like not having a really awesome plan for your treehouse from the start, making it harder to add new cool features and making the whole project a bit less efficient.
·???????? Data Governance Debt: Let's imagine your school has rules to keep everything organized and running smoothly, just like how a captain guides a ship. The issue with poorly defined data governance policies is a bit like having not-so-clear rules in your school. This happens when people quickly come up with solutions without really thinking about all the important details. So, the cause is a bit like making up rules on the spot without considering everything. The impact of this is a bit like having confusion and potential problems. For instance, if the rules aren't clear, it's easier for someone to accidentally break them, leading to data breaches or issues with following privacy rules. It's a bit like if your school rules were not well-explained, and students accidentally did something they weren't supposed to do. So, technical debt in data governance is a bit like not having clear and well-thought-out rules, which can lead to confusion and challenges in keeping everything secure and private.
·???????? Data Documentation Debt: Imagine you and your friends are creating a treasure map for a fun adventure, and it's super exciting. The issue with the lack of documentation for data structures, transformations, and business rules is a bit like forgetting to write down important details on your treasure map. This happens when there isn't enough time or attention given to jotting down all the essential information about the locations, clues, and rules for your adventure. So, the cause is a bit like being in a hurry and not focusing enough on keeping track of the important stuff. The impact of this is a bit like having some trouble later on. For instance, if a new friend wants to join the treasure hunt or if you need to fix something on the map, it becomes really tricky because the details aren't written down. It's a bit like trying to understand your treasure map when some parts are missing. So, technical debt in the lack of documentation is a bit like not taking the time to write down all the important details, which can make things confusing and harder for your adventure to go smoothly.
Addressing technical debt in the data world involves allocating time and resources to refactor and improve data-related processes, systems, and documentation. This can include implementing better data quality checks, redesigning data architectures, enhancing data governance practices, and creating comprehensive documentation. Resolving technical debt in the data domain is crucial for maintaining a reliable and efficient data infrastructure and ensuring that data remains a valuable asset for the organization.
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