How would you rank the principle of concurrency? Explain the design issues for which the concept of concurrency is relevant.
I don't think anyone here has this expertise, but if anyone does, he/she will reply later.
In the meantime ...
Please use your text, study materials, and a good search engine or two to find your answers.
1. Go to http://www.google.com or http://www.webopedia.com
2. Type in principle of concurrency (or whatever search terms you need). Press Enter.
3. Read different search results until you find what you need.
4. Re-search with different search terms if you don't find all you need.