Over the years, I developed the following scale to help facilitate those conversations. The intent is to seek to minimize the variability in the subjective nature of having someone just assign their own weight/interpretation to a 1-10 scale.
10 - Recognized as an industry expert on the given technology, outside of their company.
- Examples: A member of the development team of the given technology, authored books/articles, frequently invited speaker on the given technology at conferences, etc.
9 - Recognized as one of the key experts on a given technology, within their company.
8 - Highly Proficient
- You are able to quickly build solutions with the given technology.
- You may occasionally refer back to documentation, but in general - you are quite familiar with the given technology.
- You have built, deployed, and maintained multiple solutions with the given technology
7 - Practical Knowledge
- Examples: You've used the given technology on a project somewhere and have actually deployed something to production and maintained it
6 - Played with it, have at least built a toy app, but may not have been deployed to production.
5 - Downloaded it, look at the source code
4 - Took a class, attended a conference session, completed brief online tutorials
3 - Read a book
2 - Read about it somewhere
- Examples: Industry journal, an article, someone's blog
1 - Aware that it exists
Copyright 2015 by Kelvin D. Meeks under the Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License