IEEE says purpose of their organization `` scientific and educational , directed toward the advancement of the theory and practice of electrical , electronics , communications and computer engineering , as well as computer science , the allied branches of engineering and the related arts and sciences . '' IEEE 's Constitution defines the purposes of the organization as `` scientific and educational , directed toward the advancement of the theory and practice of Electrical , Electronics , Communications and Computer engineering , as well as computer science , the allied branches of engineering and the related arts and sciences . ''