English to Chinese Tech/Engineering IT (Information Technology)

Context:
MySQL supports a variety of database storage engines and although each provides unique benefits, they vary in their support of standard database functionality. More importantly, each engine has a different development model and {levels of commitment} vary. As quoted in the blog of the team leader Bryan Akers of the new MySQL project “Drizzle”, “So many engines, and so little to choose from”, no single good engine can be adopted to fit a particular need.
这段话描述了MySQL的缺点.不知commitment在这里该如何翻译,有劳指教,多谢!