The PROPER workshop addresses the need for productivity and performance in high performance computing. Productivity is an important objective during the development phase of HPC applications and their later production phase. Paying attention to the performance is important to achieve efficient usage of HPC machines. At the same time it is needed for scalability, which is crucial in two ways: Firstly, to use higher degrees of parallelism to reduce the wall clock time, i.e. the response time for the user. And secondly, to cope with the next bigger problem, which requires more CPUs, memory, etc. to be able to compute it at all.