What is your goal of “Data Analysis”?

Many discussions are going on about the “data analysis” and/or ” data application to business fields”.


However, their definitions and scopes are not necessarily identical, which causes lots of confusions and misunderstandings.


One of the biggest gaps which are NOT recognized in general would be the difference between “Data science” and “(practical) Data analysis”.


In order to clarify the overall picture of the “Data Analysis” world, you can see the following MAP:

Data analysis 2










Before touching the actual data itself, you need to identify which category are you addressing when you say “Data Analysis”.

It depends on your ultimate goal to achieve with the data.


If you are NOT a data analyst nor a data analytics expert and want to simply apply some basic data analysis for your business problem solving, then you do NOT need to learn “Machine learning” for instance.


What you need would be how to design the problem-solving process (Analysis Design) and how to apply the basic data analysis (mostly by Excel) for your issue(s).


The biggest issue I have observed at my client’s business offices is the fact that many people do not even”Data analysis” but do only “Data arrangement”.

This is the reality, which is far away from the “Data Science” world.


I am helping those “usual” clients to improve their business problem solving skills using “Data Analysis” techniques (not Data Science), as it is what many people need and contribute to thier immediate issues.


I hope this may clarify confusions and help you identify what you should learn and/or apply.




Business plan presentations by international students at Yokohama National University

On Feb. 14 in 2018, the international students at YCCS  (Yokohama Creative-City Studies) program presented their own business plans.


It is a requirement for all the YCCS international students at the end of the semester to show their skills and ability which they acquired in the classes to develop a feasible business plan.


I participated in the event as one of the judges to evaluate their proposals.  Each judge is required to place a bit to some of the proposals as an investor.

The major criteria are

(i) Creativity,

(ii) Uniqueness,

(iii) financial validity and

(iv) logic


Not only a creative idea but also “business reality” such as solid logic and financial validation is required

I was so happy to know that they properly applied the skills which I taught in my classes, especially financial validation, benchmarking, logic development and data utilization. etc.

I believe that this kind of program is quite unique not only in Japan but in general. But this is really worth learning for the students who will start their professional careers in the complex and competitive business environment.


I am so proud that they did great jobs. Congratulations!!


Business Logical thinking class at Yokohama National University

We have finished final exam presentations today in the class.

It was required to make a team presentation to propose a product development strategy for the global market.


The question was which to put more priority, ECO-friendly or Price-conscious products for the global market. The students were required to apply :


  • Logical thinking process and approaches
  • Techniques to make a logical structure for presentation 


in the presentation.



The conclusion must be supported from several perspectives such as company’s profit, brand image, customers, social responsibility etc.


Five teams presented their stories today. They did a great job!


Here is a part of my presentation in the “data analysis” seminar.

I always emphasis the significance of the right approach to a problem when you apply “data analysis” for solving it.


I found that many people struggled to find effective solutions based on the data especially when they started with analyzing the data without properly defining/formulating the problems and making hypothesis. Even if you find something from data, it might not be effective enough to solve the fundamental problem you have.


I call the necessary part in the problem-solving process as “ANALYSIS DESIGN”. My training programs all focus on the skill sets to design the analysis (i.e. problem-definition/formulation and hypothesis making) so that they can find a “right” solution.


Data analysis

This is something you should learn before learning the methodology of data analysis and/or difficult theory of statistics if you want to obtain the analytical skills to apply for business problem solving.

Also it is an important skill in the AI(Artificial Intelligence) era for many business persons as analysis itself can be already done by machines.


I have programs to train business persons and university students on this subject.



Final exam: Business Problem Solving Logics and Framework (at Yokohama National University)

This is an example of the final exam requirements of my class(“Business Problem Solving Logic and Framework) for undergraduate students at Yokohama National University.

This year, I picked up a hot topic in Japan facing the challenges to welcome lots of inbound visitors before and during Tokyo Olympic in 2020.

Problem solving

My class is all designed for the international students who spend four years for business study at the university. They already experienced how hard it is to live, study and work in Japan as non-Japanese students.


My goal of the class and exam is for them to find their own solutions but in a logical way.


In the class, the students learn some process and techniques/framework to solve a (business, social) problem in a logical way such as:

  • Logic tree development
  • Problem formulation
  • Root cause analysis
  • Hypothesis approach etc.


After spending several weeks for those individual study, we start “group exercise”, where your facilitaion skills are required to cordinate discussion among the students with different backgrounds.

It is really challenging and demanding, but it is an extremely sutable situation where you can learn how to manage possible conflicts in the “global” workplace with the people from the diverse backgrounds.


I am really excited to see their final presentations in the coming few weeks!


Good Luck!


My programs in English

I have some business skills training programs in English, such as “Business data analysis”, “Logical thinking for business problem-solving” etc.

I also have some class programs for undergraduate/graduate students at university.

Please find more details at the following link: http://data-story.net/english/


The skills you can learn in the programs are “fundamental”,  “practical(not purely academic) ” and “effective” in any type of business.

It is also possoble to customize the contents of the programs according to your requirements and conditions. (eg. 1 hour speech to one week intensive course)


Please feel free to ask any questions on my programs.





Girl (The Beatles): Piano solo cover

New one has been added to my collection.