gnificantly less simple then simple forward analysis. Gamma Abstract interpretation based methods are inefficient. 3.3 Type Inference This class of methods is based on the insight, first reported in =-=[KM87]-=-, that one can view strictness properties as a form of type. We can then find strictness information using a type inference algorithm. Other work on this approach is [LM91, Jen91, Wri91] This class of