Here’s my summary of this short course offered by LinkedIn.

What is Business Analysis?

Practice of enable change in the context of an enterprise by defining needs and recommending solutions that deliver value to stakeholders.

-International Institute of Business Analysis

To be a good business analyst, you need to have the following skills:

1. Facilitation. The skill of designing and running productive meetings based on previously agreed requirements.
2. Problem solving. Not only by providing solution, but also find the root cause of the problem.
3. Negotiation. Different stakeholders might have competing agendas. So it’s important to identify the common ground or bigger purpose, which will help to achieve mutually agreeable decisions. Ability to remove emotion from decision making process is important.
4. Industry and organization knowledge. By having these knowledge, the analyst will be able to design better solutions by asking informed questions, probing deeper, and having a wider vision. It will also help to maneuver the organizational cultures when working with stakeholders

All in all, it was a 21 minutes quite well spent. They also gave me a certificate:

Reviewing the logs of this website, is one of my weekly activities. Most of the time, I only need to clear the logs to save space. But today, I notice there’s something wrong with this post. The log indicates that NGINX is unable to reach the internal gateway (the Go application).

Well this is weird. I remember I already set the program as a background service. To ensure that this is the case, I checked if the service is already created in systemd:

sudo nano /lib/systemd/system/golisj.service

The file exists, and it has content:

[Unit]
Description=Golang Lisajeous Image Process Manager
Documentation=
Requires=nginx.service
After=nginx.service

[Service]
Type=simple
PIDFile=/run/golang/golisj.pid
ExecStart=-/root/go/src/server/server
ExecReload=/bin/kill -USR2 $MAINPID

[Install]
WantedBy=multi-user.target

Check Service Status

service golisj status

Output:

● golisj.service – Golang Lisajeous Image Process Manager
Loaded: loaded (/lib/systemd/system/golisj.service; disabled; vendor preset: enabled)
Active: inactive (dead)

Start Service

sudo service golisj start

Now we check the status

sudo service golisj status

Output:

Enable Service

To make sure the service is running after reboot, we need to enable the service

sudo systemctl enable golisj

Output:

Created symlink /etc/systemd/system/multi-user.target.wants/golisj.service → /lib/systemd/system/golisj.service.

Check the status again:

sudo service golisj status

Output:

To test it out, I rebooted the server. When I opened the post, I can see the animated gifs running. I Ctrl+F5 one more, the gifs is still there. That means the service is now running after restart.

I hope it helps. Cheers!

What is Factors?

If we multiply two numbers, it gives a product. The two numbers are the factors of the product.

For example:

5 x 2 = 10

So 2 and 5 is the factors of 10

To practice to find the factors of big numbers, you can use the circles below. First, you need to enter a number in the green circle. This number is the number which you want to find its factors.