4 stages of life cycle on add gel pens First and foremost before any engineers put pen to paper to add to vega's very good answer there is no fixed number of stages to the systems development life cycle and no standard checklist of items required for each of the stages.
4 stages of life cycle on add gels pens First and foremost before any engineers put pen to paper to add to vega's very good answer there is no fixed number of stages to the systems development life cycle and no standard checklist of items required for each of the stages.