During the concept exploration phase, the
maintainability activities are necessarily intended to prepare for Phase
I . The maintainability program plan may be started in which the goals and objectives for the new product are broadly stated. Some analysis may be made of prior similar products to help establish ranges of realistic maintainability goals. Very general modeling may be used to complement the analysis in deriving ranges of maintainability goals. Also, new approaches and technologies related to maintainability design, analysis, and validation can be identified during this phase.