DoD Ch. 14

     Brooks begins chapter 14 by talking about mistakes and how professional mistakes have much dire consequences than amateur mistakes, i.e. bridge collapses. The he cites JCL as the worst computer language ever created and used by IBM's operating systems.  He goes further into what JCL is and how its flawed.  He comments on the flawed complier and necessary information to knowJCL is vast and no one really knows how to use it. He mentions there are too few verbs, almost no branching, no iteration, and no clean subroutines. Brooks then talks about how JCL became into existence and why its flaws were overlooked. Finally he concludes with the lessons learned: Study failure more closely that success, don't be overconfident with success, and always consider assumptions and environments of designs.