Although Documentum (an EMC proprietary product) is considered mature, in terms of software, it is forever changing; so having an additional source of technical detail (this blog) may be useful to some developers, administrators. and others.
Having been involved with Documentum, from a technical point-of-view since about 2000 I've watched this product morph, expand, change directions, and adopt additional bolt-on technologies.
Stay tuned for helpful hints, from using Composer, to DFC tricks, administrative solutions, and for some fill-in's in areas I think are lacking. One has quite a few sources of information about Documentum, including at least one book but often Documentum's own technical documents miss the point, or one can't find a solution in forums or other sources.