This report defines the formal delivery of the AVAL maintenance and development project of 2015. The report consists of three major parts: 1. A short description of the AVAL-tool, suitable for those who has never been in contact with AVAL. 2. A summary of this year's usage of AVAL. AVAL was used for a study of add on ballistic protection for Stridsbåt 90 among other things this year. Several other studies are planned to start 2016 or 2017. 3. A description of changes in the source code and manuals. The development was focused on the next generation of AVAL, currently called AVAL 6.10, while maintaining the current AVAL 6.9. A list of users and potential new users are included addition to the three major parts.