<h4>Chapter 31: <Big data> <big data=""></big></h4>
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<big data=""> The next day.
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<big data=""> Kwak Jungwook called for an immediate meeting.
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<big data=""> “As you know, the headquarters is highly invested in this big data project.”
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<big data=""> Kwak Jungwook continued calmly.
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<big data=""> “Daesan had two opinions regarding this project. First is that it will negatively affect the UX. Second, we need to verify the data analysis results.”
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<big data=""> Kwon Taegyun frowned. He heard about the first part yesterday but was unaware of the second objection.
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<big data=""> “I have heard the first one, but you’ll have to exin further about the second part.”
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<big data=""> Kwon Taegyun looked at Yoon Gihwan, who, in turn, directed his gaze to Woosung. Despite everyone’s attention, Woosung was deep in his own thoughts.
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<big data=""> ‘We meet again.’
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<big data=""> Cha Yeoreum was sitting at the table too. Theis meetif og theirs surprised her but it also pleased her at the same time to see Woosung again. Yoon Gihwan poked Woosung.
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<big data=""> “Hey, newbie.”
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<big data=""> Woosung finally paid attention to the room. Kwon Taegyun was ring at him with obvious hate.
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<big data=""> “There is a saying, ‘Empty vessels make the most noise.''”
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<big data=""> Woosung looked at Kwon Taegyun and continued.
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<big data=""> “Have you heard it before?”
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<big data=""> Kwon Taegyun pped the table and stood up angrily.
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<big data=""> “What the hell are you trying to say?”
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<big data=""> Kwak Jungwook stood and tried to stop Kwon Taegyun. He waved at Woosung.
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<big data=""> “W…Woosung. You need to watch yournguage.”
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<big data=""> “No, I don’t. The amount of money yourpany received for this project is about 10 million dors.”
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<big data=""> Woosung continued slowly.
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<big data=""> “So I looked into where that money was spent. The word ‘big data’ was all over the invoices. ‘New customers attraction using the big data analysis.’ ‘Increasing the ease of system use with the big data analysis.’ ‘Increased uracy in predicting future system errors using the big data analysis.’ And so on.”
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<big data=""> When Woosung tried to continue, someone from Daeyang interrupted him.
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<big data=""> “I am Manager Oh Juhoon from Daeyang System. I find your usations very insulting. Everything we put on the report is true. I don’t understand which part you think is fake.”
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<big data=""> Kwon Taegyun added smugly.
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<big data=""> “By the way, Oh Juhoon has a PhD in statistics.”
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<big data=""> Yoon Gihwan answered.
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<big data=""> “All of them.” He then smiled at Woosung.
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<big data=""> “Are you kidding me?”
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<big data=""> Oh Juhoon scowled and answered loudly.
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<big data=""> Woosung shook his head and turned on the presentation screen. An excel file opened.
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<big data=""> “This is a table I made of the Nuri Finances’ data analysis.”
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<big data=""> -Period: February 21 ~ March 21
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<big data=""> -Data on stock trading: 32,222,114
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<big data=""> -Number of inquiries to call center: 1,234,523
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<big data=""> -Number of visits to the homepage: 1,098,245
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<big data=""> …
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<big data=""> Woosung asked as he pointed at the screen.
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<big data=""> “As you can see, majority of the data is from stock trading transactions. You weren’t nning to use this to make product rmendations, right?”
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<big data=""> Everyone looked at Oh Juhoon. He adjusted his sses and answered.
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<big data=""> “Hmm…Of course not. That kind of data would be useless when making product rmendations.”
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<big data=""> Yoon Gihwan frowned. He was right, Daeyang didn’t make such an obvious mistake.
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<big data=""> “Then this means you used the data on product inquiries for call center and homepage…”
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<big data=""> Oh Juhoon swallowed and nced at Kwon Taegyun.
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<big data=""> “T…that’s right. We used three years worth of data, so that would be about 30 million.”
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<big data=""> “And you call that big data? That would be less than 100 gigs.”
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<big data=""> Oh Juhoon remained silent. Kwon Taegyun sat down quietly and tried to help.
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<big data=""> “You are too focused on the word ‘big data.’ You need to consider the quality of our work instead.”
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<big data=""> “Quality? Haha, then let’s talk about that.”
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<big data=""> Woosung’s mocking tone angered Kwon Taegyun. Kim Jaejin intervened.
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<big data=""> “Hey. Don’t you think you are being a little rude?”
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<big data=""> Woosung gave a quick response.
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<big data=""> “No, not at all.”
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<big data=""> Kim Jaejin stuttered.
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<big data=""> “W…what did you say?”
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<big data=""> “I said no.” Woosung continued. “If you want to talk about manners, how about you making us wait 15 minutes for a meeting?”
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<big data=""> Kwon Taegyun tried to answer but Woosung was quicker.
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<big data=""> “We keep getting off topic. Let’s get back to the presentation.”
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<big data=""> Woosung clicked to change the screen to PPT.
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<big data=""> “Data quality is just as important as the amount of data. An analyst should be ashamed to knowingly using the wrong data, just like in this case.”
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<big data=""> Oh Juhoon reddened.
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<big data=""> Kwon Taegyun.
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<big data=""> Kim Jaejin.
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<big data=""> They all became silent.
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<big data=""> Except for Cha Yeoreum, all members from Daeyang System reddened. Woosung continued.
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<big data=""> “Then let’s get back to the business. You mentioned quality. The focus of data analysis should be quality of work and the appropriateness of the data.”
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<big data=""> The room was dead silent except for Woosung.
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<big data=""> “The first thing is to set a goal. Then you should work towards the goal, rather than working on unrted data and call whatever the result to be the ‘goal.''”
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<big data=""> Woosung continued.
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<big data=""> “But in this case, was there ever a clear objective?”
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<big data=""> No one could answer.
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<big data=""> ***
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<big data=""> Silence.
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<big data=""> Cha Yeoreum looked around the room and turned to Woosung.
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<big data=""> ‘What is happening here?’
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<big data=""> This was not the Woosung she knew.
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<big data=""> She has known him for a long time. During university, Woosung barely passed to graduate, but the Woosung in this room was apletely different person. She looked at him with curiosity.
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<big data=""> ‘Tell me, what happened?’
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<big data=""> Woosung shrugged.
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<big data=""> ‘We haven’t seen each other in a while.’
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<big data=""> It has only been a year. She continued to look at him, but Woosung looked away.
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<big data=""> Woosung finally broke the silence.
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<big data=""> “We need figure out what we can do with all the data we have.”
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<big data=""> The atmosphere in the room was changing. It now felt like a ssroom, and Woosung is the teacher.
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<big data=""> “The data on stock trading and on the online transactions. We need tobine the two.”
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<big data=""> With 10 years of experience, Woosung was now the expert.
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<big data=""> “We use HTS now, but in the future, more convenient tools will be avable.”
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<big data=""> In the future, MTS (Mobile Trading System) will be the main system. Whicheverpany monopolizes it will be the top of the food chain.
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<big data=""> “We need to be prepared for that time. We need to analyze the avable data to determine users’ HTS use patterns and improve on it. We need to be ready for the future.”
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<big data=""> Kwak Jungwook looked at Woosung admiringly, but Yoon Gihwan looked at him oddly.
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<big data=""> ‘Look at this guy.’
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<big data=""> Woosung was not providing any specifics of his n.
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<big data=""> Yoon Gihwan didn’t know much about mobile transaction systems, but he knew if Woosung’s idea was to take ce, he needed to have detailed ns. Woosung wasn’t providing them. Kwon Taegyun opened his mouth.
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<big data=""> “So…what do you propose?”
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<big data=""> “Seminar.”
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<big data=""> “What?”
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<big data=""> “I will provide you all the information during a seminar. For Daeyang…”
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<big data=""> Daeyang System.
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<big data=""> It belonged to Daeyang Group where Choi Gichul’s father was the CEO.
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<big data=""> Every time Woosung saw the word Daeyang, he felt an incredible anger. This was why he felt no respect to anyone who worked there. After a few seconds of thinking, Woosung continued.
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<big data=""> “I will only charge 20,000 dors.”
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<big data=""> Kwon Taegyun asked again.
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<big data=""> “What?”
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<big data=""> “I will provide all the needed details during this seminar.”
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<big data=""> Kwak Jungwook was already sold on the idea. He looked at Kwon Taegyun and Oh Juhoon.
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<big data=""> “What do you think?”
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<big data=""> “I think…”
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<big data=""> Oh Juhoon looked at Woosung. Woosung wasn’t just fancy words, but they have not yet tested his skills Oh Juhoon stood and started to write an equation on the whiteboard.
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