Dear Artem, Thanks for the wiki abstract. The summary you made is a bit confused. In the intro --> Try and be more explicit regarding the relevance for project / program / portfolio managers. In the main body --> Try to sharpen the focus on a particular aspect. Make examples. Make it clear. A suggestion that I give to all students is to be critical. At the end of the article give ur own idea about it. Explain pro and cons and find literature about it to prove your thesis.
Try to review the suggested article structure in the Wiki assignment on CampusNet (or in the class handbook), and make sure you cover all the relevant aspects. You are free to deviate from it you think that makes more sense for your assignment.