Documentum articles in codeproject

While looking at the code project site, I saw these two documentum articles written by the same author. The articles are about important documentum concepts and i guess at least the screenshots provided in the articles will prove to be useful to get an idea about the concepts. Here are the links:
1. Steps to create and use ACL on Documentum Content server
2. Steps to create and install SBO on Documentum Content server

Both the articles are unedited reader contributions, so not sure if the articles remain in the site. I did a search on the word documentum in code project and found 5 articles all by the same author. some of these articles are rated low (1.00) may be because of poor presentation, but I'm sure they are at least useful for quick reference or to just get an idea.