(For Product Managers) Fundamentals of LLM and Understanding LLM-based Service Planning

# Lecture 02. Fundamentals of LLM and Understanding LLM-based Service Planning

## Notice Regarding New Lesson Postings

Hello, students! A total of **388** new lessons (across 43 sections) are scheduled to be posted sequentially for this course. As I am producing multiple courses simultaneously, I am proceeding by **alternating between several courses and posting a little at a time**, rather than uploading one entire course at once. Below are the posting principles and the posting schedule for each section of this course.

> For your reference, the lessons being posted now are not entirely new content, but are part of the process of creating **revised editions (2nd or 3rd editions)** that reinforce existing lectures.

## Posting Principles

- Currently, I am rotating through a total of 19 courses in order (circular method), posting one lesson per course alternately.
- Postings are made on weekdays (Mon–Fri), with a total of 5 new lessons uploaded across all courses per day.
- For this course, the next lesson will be posted each time its turn in the rotation comes around.
- While the posting speed may feel slow compared to other courses, all courses are progressing together in the same manner.

## Posting Schedule by Section (Total 43 Sections)

| Section | Number of Lessons | Start Date | End Date |
|---|---|---|---|
| Section 5. [Basic] Technical Background of LLM - AI Training Methods | 10 | 2026-07-01 | 2026-08-18 |
| Section 6. [Basic] Technical Background of LLM - The Role of Deep Learning | 10 | 2026-08-24 | 2026-10-09 |
| Section 7. [Basic] Technical Background of LLM - Overview of Natural Language Processing | 6 | 2026-10-15 | 2026-11-11 |
| Section 8. [Basic] Basic Concepts of LLM | 8 | 2026-11-17 | 2026-12-23 |
| Section 9. [Advanced] Intuitively Understanding How LLMs Work | 12 | 2026-12-29 | 2027-02-18 |
| Section 10. [Advanced] How to Utilize LLMs in Actual Services | 8 | 2027-02-23 | 2027-03-23 |
| Section 11. [Practical] Fundamentals of LLM and RAG-based Service Planning Practice | 8 | 2027-03-26 | 2027-04-22 |
| Section 12. [Practical] User Experience (UX) Design | 8 | 2027-04-27 | 2027-05-25 |
| Section 13. [Practical] Business Strategy and Cost Management Strategy | 8 | 2027-05-27 | 2027-06-23 |
| Section 15. [Practical] Project Execution Practice | 6 | 2027-06-25 | 2027-07-14 |
| Section 16. [Practical] Case Analysis and Strategic Judgment | 8 | 2027-07-19 | 2027-08-10 |
| Section 17. [Practical] Data Quality Management and RAG Planning | 8 | 2027-08-12 | 2027-09-01 |
| Section 18. [Practical] Prompt Engineering and Evaluation | 8 | 2027-09-03 | 2027-09-23 |
| Section 19. [Practical] Operation and Monitoring | 8 | 2027-09-27 | 2027-10-15 |
| Section 20. [Practical] Project Management and Collaboration | 8 | 2027-10-19 | 2027-11-08 |
| Section 22. [Exercise] Coding Assistant Service Planning | 8 | 2027-11-10 | 2027-11-30 |
| Section 23. [Exercise] Productivity and Knowledge Work Integration Service Planning | 9 | 2027-12-02 | 2027-12-22 |
| Section 24. [Exercise] Search and Q&A Engine Planning | 9 | 2027-12-24 | 2028-01-12 |
| Section 25. [Exercise] Multimedia Generation Service Planning | 9 | 2028-01-14 | 2028-02-01 |
| Section 26. [Exercise] Vertical Industry-Specific SaaS Service Planning | 9 | 2028-02-03 | 2028-02-22 |
| Section 27. [Exercise] Chatbot and Automation Service Planning | 9 | 2028-02-23 | 2028-03-13 |
| Section 28. [Exercise] API Platform Provision Service Planning | 9 | 2028-03-14 | 2028-03-30 |
| Section 29. [Exercise] In-house LLM Solution Implementation Planning | 9 | 2028-03-31 | 2028-04-17 |
| Section 30. [Exercise] Call Center Voice Bot Automation Solution Planning | 10 | 2028-04-19 | 2028-05-05 |
| Section 31. [Exercise] Internal Knowledge Search and In-house Copilot Solution Planning | 10 | 2028-05-09 | 2028-05-25 |
| Section 32. [Exercise] Automated Contract and Document Review (Legal) Solution Planning | 10 | 2028-05-29 | 2028-06-14 |
| Section 33. [Exercise] Compliance and Fraud Detection Assistant Solution Planning | 10 | 2028-06-16 | 2028-06-29 |
| Section 34. [Exercise] Marketing and Sales Personalization Assistant Solution Planning | 10 | 2028-06-30 | 2028-07-13 |
| Section 35. [Exercise] Developer and Data Team Assistant Solution Planning | 10 | 2028-07-14 | 2028-07-27 |
| Section 36. [Exercise] MLOps and LLMOps Operation Assistant Solution Planning | 10 | 2028-07-28 | 2028-08-08 |
| Section 37. [Exercise] Data-Driven Decision Support Solution Planning | 10 | 2028-08-09 | 2028-08-18 |
| Section 38. [Exercise] Executive Decision Support Solution Planning | 10 | 2028-08-21 | 2028-08-30 |
| Section 39. [Exercise] R&D and Research Assistant Solution Planning | 10 | 2028-08-31 | 2028-09-11 |
| Section 40. [Exercise] Financial Research and Investment Assistant LLM Planning | 10 | 2028-09-12 | 2028-09-21 |
| Section 41. [Exercise] Public and Policy Analysis Assistant LLM Planning | 10 | 2028-09-22 | 2028-10-03 |
| Section 42. [Exercise] Public and Administrative Complaint Automation Assistant Planning | 10 | 2028-10-04 | 2028-10-13 |
| Section 43. [Exercise] Public Chatbot Integrated Operation Platform Planning | 10 | 2028-10-16 | 2028-10-25 |
| Section 44. [Exercise] Medical and Healthcare Consultation Assistant LLM Planning | 10 | 2028-10-26 | 2028-11-06 |
| Section 45. [Exercise] Finance and Insurance Consultation Automation Solution Planning | 10 | 2028-11-07 | 2028-11-16 |
| Section 46. [Exercise] HR, Recruitment, and Evaluation Automation Solution Planning | 10 | 2028-11-17 | 2028-11-28 |
| Section 47. [Exercise] In-house Agent-based Task Automation Planning | 10 | 2028-11-28 | 2028-12-06 |
| Section 49. [Practical] Multi-Agent Service Planning | 5 | 2028-12-06 | 2028-12-08 |
| Section 50. [Practical] RFP, Cost, Risk, and Case Reinterpretation | 8 | 2028-12-08 | 2028-12-13 |

## Estimated Completion

Based on the current pace, the entire course is expected to be fully posted by around **December 2028**. (The actual schedule may be moved up or delayed depending on production progress.)

At the request of our readers, we are issuing a 66% discount coupon for "Cognitive Load Management Techniques to Break Through the Limits of RAG Performance" (the 990,000 KRW course can be purchased for 330,000 KRW).

For your information, this course is currently in the process of posting the 2nd edition, which is a revision of the 1st edition.

In the case of the 2nd edition, all class materials have been posted, but the videos are still in the process of being uploaded.

I post the 2nd edition videos frequently, but it will take a long time (at least several months) to post all of them.

Please keep this in mind and carefully decide whether to use the coupon.

The deadline is the 19th and there is a limited number of coupons available, so please hurry if you need one.

You can download the coupon by entering the address below into your browser's search bar.

https://inf.run/QowXG

Hello.

The era of AI writing code has arrived.

However, the task of verifying the code written by AI and directing the path for improvement remains the responsibility of humans.

Furthermore, it has become necessary to know how to utilize AI more extensively in both vertical and horizontal directions.

The horizontal direction refers to a direction that encompasses everything from planning to deployment, and

The vertical direction refers to a direction that can encompass various languages, various frameworks, and various methodologies.

Therefore, a developer with a broad spectrum (that is, a complete spectrum in both vertical and horizontal directions)

will be needed.

However, the education system has not yet been able to keep up with this.

That is why I have opened the "Structural Code Reading Bootcamp" using Claude Code.

At https://code-reading-bootcamp.vercel.app/, you can develop the ability to read code written by both AI and humans, and

You will be able to develop the ability to guide AI on how to improve code.

It includes gamification elements, so you can have fun while tracking your skill improvements.

It is free to use anytime without the need to log in.

Although there are some shortcomings and parts where the questions have not yet been filled in,

I introduce this with the hope that it will be helpful to you.

I would appreciate it if you could use it lightly.

February 10, 2026, Sincerely, Jinsu Park (Arigaram).