substantial

(product development) project

progress; improvements in social welfare. / Personal progress, usually in the development of a skill.

To improve (in reference to a society's technological capability or general quality of life). / To advance in proficiency; to make progress in the development of a skill.

project (planned endeavour)

accomplish

substance; essence

(informal) at its core; essentially

a target, a mark, a bullseye / an objective, an object (of doing something)

as far as ... is concerned; in terms of ...