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Abstract. Many software engineering organizations around the world are adopting DevOps. One of the goals of DevOps is to foster better collaboration between development and operations personnel, in order to improve organizational efficiency. Since DevOps is lacking a common definition, there are several approaches to adopt it, and organizations largely need to determine how to apply DevOps for themselves. In this paper, we present results from a case study in which a software organization adopts DevOps. The focus of this research is to study the impact of mixing the responsibilities between development and operations engineers. We interviewed 14 employees in the organization during the study, and results indicate several benefits of the chosen approach, such as improved collaboration and trust, and smoother work flow. This comes at the cost of a number of complications, such as new sources for friction among the employees, risk for holistically sub-optimal service configurations, and more.

The current study evaluated the effects of various pretreatments and aging in water on the bond strength to hot isostatic pressed yttrium-oxide partially stabilized zirconia. Sixty zirconia ceramic specimens (Denzir) were randomly divided into three groups of 20. One group of specimens (n=10) was then bonded to each other using a resin composite cement (RelyX Unicem), the second group (n=10) was bonded with RelyX Unicem and a metal primer (Metal Primer II), while the third group (n=10) was bonded with RelyX Unicem and a ceramic primer (Ceramic Primer). The specimens were then subjected to shear force before and after sandblasting and before and after aging in water for 180 days. Before aging, no significant differences (p > 0.05) were seen within the different groups, either before or after sandblasting. Sandblasting and pretreatment with the metal (p < 0.01) or ceramic (p < 0.001) primers significantly improved the bond strength compared to that of the non-treated specimens. After aging, the bond strength of the sandblasted specimens with metal primer was significantly higher than that of the sand-blasted specimens with ceramic primer (p < 0.01) and the specimens with no primer (p < 0.001). For the specimens that were sandblasted and pretreated with the metal primer, the bond strength was not significantly affected after aging (p > 0.05), whereas, for those specimens with the ceramic primer (p < 0.001) and no primer (p < 0.05), the bond strength significantly decreased. Thus, air abrasion and pretreatment with a metal primer seems to be an appropriate method for improving bond strength.