An important aspect of game design is incorporating a lock mechanism. They are of critical importance to adventure and role-playing games. It’s important to properly use lock mechanisms in a game because designers tend to overuse them. I found a great article on the use of locks. You can find it at
Role-Playing Locks.

Many interesting articles on Game Design can be found at
Game Design Articles

Another interesting article describes good project management skills in designing your game. It follows the processes of good project management. They are Planning the game project, Extracting the schedule and the budget from those plans and Controlling the generated budgets, schedules, activities, and overall objectives throughout the life of the project. Project Management