Logistic systems analysts use a wide array of modeling systems such as algebraic and logic programs. Two simple examples show how they mesh as Constraint Logic programs, emphasizing the visual style of formulation. A facility location problem is solved in Prolog. Its standard mathematical programming formulation is then represented in CLP() to reach an optimal solution faster. The examples are chosen to raise systemic issues such as model re-use and adaptability that are at the heart of logistic analysis and planning.