Wikipedia has fairly good articles on KPIs (https://en.wikipedia.org/wiki/Performance_indicator) and the SMART criteria (https://en.wikipedia.org/wiki/SMART_criteria).
Blog
How Bad Data Ruins Your Day
Here are some of my favorite horror stories how things went wrong due to bad data:
https://www.simscale.com/blog/2017/12/nasa-mars-climate-orbiter-metric/
(A blog post with examples – including the classic NASA mishap – of how things go wrong when people get data types wrong.)
Illustration of Relational Database
This video demonstrates differences between a relational database and an Excel spreadsheet for storing data.
Relative vs. Absolute Cell References in Excel
Here is a short clip explaining how relative cell references differ from absolute cell references in Excel.
Here is also a link to my Excel demo spreadsheet.
Beware of Online Filter Bubbles
An old but still relevant TED talk by Eli Pariser on how the web is being inconspicuously personalized for individual tastes creating bubbles of like-minded people.
…and its critique:
…and a more recent take on the topic:
https://www.theverge.com/interface/2019/11/12/20959479/eli-pariser-civic-signals-filter-bubble-q-a
Correlation without Causation
Here are some brilliant examples of correlations that surely do not indicate causation!
A Simple Vocabulary of Data Science Concepts
A short summary of important data science concepts we discuss during the course in Aleksi Aaltonen’s blog:
https://aleksiaaltonen.medium.com/a-simple-vocabulary-of-data-science-concepts-dc29c633f5ee
It’s just 2 min read and gives you an overview of many important concepts we will discuss during the semester.