Twelve roles are described which are occasionally or frequently assumed to constitute the practice of systems engineering. Some roles fit naturally as life-cycle roles, others fit the Program Management set of roles, while still others are not normally thought of in either group. Interactions between the roles are discussed, and the systems engineering roles assumed by the papers in the inaugur...

The primary purpose of this paper is to illustrate the protean symptomatology of a group of growths known collectively as the malignant lymphomata or lymphoblastomata. Much discussion centres on the exact nomenclature of these conditions, and no attempt is made here to elucidate this matter. Gall and Mallory (1942) discuss the problems involved, and suggest a cytological basis for subdivision; ...

The primary purpose of this paper is to illustrate the protean symptomatology of a group of growths known collectively as the malignant lymphomata or lymphoblastomata. Much discussion centres on the exact nomenclature of these conditions, and no attempt is made here to elucidate this matter. Gall and Mallory (1942) discuss the problems involved, and suggest a cytological basis for subdivision; ...