Welcome to the WICSA, QoSA, and CBSE 2016 conferences. While we had separate calls for papers, separate chairs and review processes for each conference, we had a unified, stronger community with a joint program committee. Even though the proceedings separate the papers in distinct chapters for each conference, there is a single conference program designed jointly by the program chairs of the three conferences. More precisely, papers accepted separately by the WICSA 2016, QoSA 2016, and CBSE 2016 conferences will be presented together in shared sessions. Hence, this year’s event is a great opportunity to bring together the researchers from the WICSA, QoSA and CBSE conference series. This year, WICSA, QoSA and CBSE calls for papers have attracted 149 submissions in total. Papers submitted to either WICSA, QoSA or CBSE were evaluated separately for each conference. After a careful evaluation by at least three reviewers and a following discussion period, 30 papers were accepted from WICSA, 12 from QoSA and 14 from CBSE. During the technical sessions, conference attendees will have the opportunity to listen to 56 presentations in 18 shared sessions. Some of these sessions will be working sessions with time slots dedicated to extended open discussions. In their calls for papers WICSA, QoSA, and CBSE addressed key concerns of software architectures across the system life cycle, such as designing for longevity, designing for reliability, and designing for flexibility. When we allocated the accepted papers to presentations sessions, it became evident that these concerns were shared by the three conferences. Hence the sessions were assembled to focus on these concerns.