I agree that the Wikipedia definition is not very good, but Holism can sometimes make sense if its specified more precisely. Sometimes it means that a system is

I agree that the Wikipedia definition is not very good, but Holism can sometimes make sense if its specified more precisely. Sometimes it means that a system is such that if you change one component, then all other (or many other) components of the system are changed as well. In other cases, holism may be taken to imply that some value of a whole can be described by a superadditive function of the values of its parts, i.e., v(a⊕b)≥ v(a)+v(b) where "⊕" is some form of concatenation, mereological "sum", or combination operation. What I'm saying is that some meanings of the vague term "holism" can be made precise and can be interesting. For example, the Choquet Integral in decision making allows for superadditive combination of attributes.