Planguage basics and process control : the purpose of planguage -- Introduction to requirements : why? -- Functions : what systems "do" -- Performance : how good? -- Scales of measure : how to quantify -- Resources, budgets and costs : costs of solutions -- Design ideas and design engineering : how to solve the "requirements problem" -- Specification quality control : how to know how well you specified -- Impact estimation : how to understand strategies -- Evolutionary project management : how to manage project benefits and costs.