Visualize Your Data: Making Sense of Data Chapter 4

Chapter 4 covers some basic charts that will be used to visualize data. I think most of my readers would know those charts very well. But, I would still like to recap some important points. Still, I learned some new things as well, such as Pareto Charts, and recalled some old memory in high school …

Visualize Your Process: Making Sense of Data Chapter 2

In Chapter 2, the author introduces tools to visualize systems and processes. It mainly covers Brainstorming, Flowchart, Deployment Flowchart, PERT Diagram, Cause-and-Effect Diagram. It may seem elementary. But I still find it rewarding, and I have summarized the learnings in the following paragraphs. First, honesty is a prerequisite for useful flowcharts. I think you may …

Collecting Good Data: Making Sense of Data Chapter 3

Chapter 2 discusses how to visualize processes and systems. Chapter 3 talks about some issues in collecting data so that we can avoid them when analyzing systems. The chapter mainly consists of three parts: general requirements to collect good data, definitions that are operational, and some common pitfalls in interpreting data collected. For the first …

Why Continual Improvement? Making Sense of Data Chapter 1

Making Sense of Data, Donald J. Wheeler The chapter inspires me a lot. As a data professional, I believe in accurate measurements. We set metrics, KPI for our organizations to monitor how well our business performs. The metrics and KPI are usually result-oriented, for example, how many delinquency cases, how much time spent on processing …

Chapter 3 Summary of the Book: Effective Data Storytelling

This chapter further illustrates the psychological barriers of understanding and accepting new findings. If I have to use one sentence to summarize the chapter, it would be apart from logic, emotions also play an important role in decision making. The author quotes the idea from a book called Thinking Fast and Slow which points out …

Chapter 2 Summary of the Book: Effective Data Storytelling

Continue on Chapter 1, the author tries to persuade readers on why to tell stories with data. He provides some psychological experiments done to prove his points. Apart from that, he also mentioned the three elements of the data story in which he will devote one to two chapters to elaborate on each of the …

Chapter 1 Summary of the Book: Effective Data Storytelling

I am currently reading a book called Effective Data Storytelling: How to Drive Change With Data, Narrative, and Visuals written by Brent Dykes. I found it quite enlightening, and want to write summary on each chapters for my own note taking, and at the same time, sharing with all of you. The book is not …

Some Beginner Resources for Learning Data Visualization in Tableau

Date: 06 Jan 2021 Recently, I am preparing the launch of Tableau in my company. I have, therefore, collected some useful resources and want to share with my readers. General Learning Path Understand the terminology used in Tableau You may refer to this link. Understand the Tableau environment, meaning the functions of buttons and cards …

Data Governance V.S. Data Engineering V.S. Data Analysis

Date: 31 Dec 2020 Like most of you, when I tried to explore the career in data field, I want to be a data analyst. It is the sexiest job in 21st Century (according to Harvard Business Review. [an article titled: Data Scientist: The Sexiest Job of the 21st Century]). At that time, I didn’t …