English to Chinese Tech/Engineering IT (Information Technology) Project Management

Milestones aren't met
"Small, discrete and often" are the guidelines for the milestones for a successful project.
At AtTask, Scott Johnson says, milestones are weeks apart rather than months or calendar quarters. "Bite off a small piece, get it in someone's hands and start taking feedback," he advises.
"Discrete" means that each milestone is {unambiguously defined in measurable terms with a solid deliverable}. Jim Johnson prefers the term "stepping stone" to milestone. "At the end of a stepping stone you get a concrete result; a milestone might be more nebulous."