Construction of the graph, to express the paths along the time that can be used; Constraints, to limit the path options in the graph; Pheromone trails, to define the strategy of pheromone deposit; Heuristic information, the functions that should be optimized; Solution construction, issues about software engineering; Pheromone update, the strategy to eliminate unused paths; Local search, the strategy to avoid premature optimization; Particularities, some specific point to be considered; Results, results in a simple means of expression; Remarks, points to express much information;