7.7 SUMMARY what the heuristic rules mean in practice and help to find issues that are not covered directly by the heuristic rules. The experience will also help in coming up with good and feasible suggestions on how the problems can be solved. The experience gained, when observing and analyzing playability tests, is espe- cially useful when conducting an expert evaluation. This is because the playability tests give valuable information on how players play the games and what they think of the different design practices. This information can be highly valuable when reviewing the game for usability and playability problems and thinking about pos- sible ways that problems could be solved. 7.7 Summary The expert evaluation is a flexible and efficient method for finding and address- ing the usability and gameplay problems that may hinder playing the game. The evaluation can be done at different points of the development process and it can be focused on the issues that are of the most interest to the game developers, at that point of the time. The method is efficient because the number of people needed for conducting the evaluation is small and the results that consist of both the problems and the recommendations on how to tackle them are delivered quickly. For the very