A methodology will lack the precision of a technique but will be a firmer guide to action than a philosophy. Where a technique tells you 'how' and a philosophy tells you 'what', a methodology will contain elements of both 'what' and 'how'.
p. 162 cited in: Rob Pooley, Pauline Wilcox (2003) Applying UML: Advanced Applications. p. 50 - Systems Thinking, Systems Practice, 1981