Ensuring software quality is important for achieving a competitive advantage in the market. Also, it is essential in critical systems, where a computer program cannot fail under any circumstances. In software projects, the best way to accomplish quality is to continuously monitor the state of the product and the development process. This means, that measurements on the software have to be done. However, as it is not adequate to measure everything, the relevant quality characteristics have to be defined. This is very context-specific and should thus be done for each project separately.In this thesis, the deployment of quality monitoring in software development projects was studied. This included defining a quality model and designing, deploying and using a quality monitoring program. These activities were facilitated by the U-QASAR methodology and platform that provide guidance and support for quality monitoring by measurement data integration.The study consisted of two parts: a multiple case study and constructive research. The case study was conducted to explore the case project members’ experiences on quality monitoring. Observations, interviews and questionnaires were used as research instruments. A constructive research method was used to evaluate the data integration in the U-QASAR platform. Data integration adapters were explored and developers were interviewed and finally a new adapter was implemented. In both parts, thematic analysis was used to process the data.The case study results showed that quality monitoring can be deployed even in small-scale software projects, but there are certain challenges. For example, it is difficult to connect objective software measurements to more abstract quality objectives. Moreover, practitioners’ knowledge on the terminology of software measurement and software quality is not something that can be assumed. However, it is important that the semantic structure is taken care of in order to achieve common understanding. The constructive research revealed needs for further development regarding the data integration architecture of the U-QASAR platform.
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