“据”，“根据”，“依据”意思相近，意思是以某些“事物”作为明确的“标准”；“按”，“照”， “按照”，“参照”意思相近，意思是以某些“事务”作为“参照物”；

据is the shorted form of 根据.根据sometimes means "based on" and sometimes means "according to" when followed by a person or source of information. 按照 means "in accordance with," but sometimes it can also be used to mean "accoring to." 按 and 照are the shorted forms of 按照. But their actual usage in sentences still need to take consideration of the contexts.

in Chinese， they have same meaning

in daily conversation ， you can use 据，按，照 with friends，family members or others。But in formal or offical occasions ，like law files，goverment files or agreement ，using 根据 and 按照。