> For the complete documentation index, see [llms.txt](https://www.mlcompendium.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.mlcompendium.com/business-problems/intro.md).

# Introduction

This chapter is the job, before the data and the method. After it, the reader can state what the business wants changed and how that metric will sit beside a model score, and the worked cases are in [AI Product](/ai-product/intro.md).

The chapter has one page. [Data Science](/business-problems/data-science.md) walks the role of a data scientist, the project lifecycle, the platforms and stack, and how a research team plans its work, and only then the courses, books, cost, and patents.


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