From an analysis point of view, I’ve found over the years that sequence diagrams are very powerful in helping me drive requirements; especially requirements that are hard to find. User interface requirements, for instance, are notorious because you always seem to get requirements that are just not testable.
Mula sa isang pag-aaral na punto ng view, na nahanap ko sa mga nakaraang taon na sequence diagram ay lubhang makapangyarihan sa pagtulong sa akin magmaneho kinakailangan; lalo kinakailangan na mahirap upang mahanap. kinakailangan ng gumagamit interface, halimbawa, ay kilalang-kilala dahil palagi kang mukhang upang makakuha ng mga kinakailangan na lamang ay hindi testable.