In Table 5 the various HAZID improvement attempts have beensummarized. Approaches are diverse. No single method seems to beideal yet. A computer readable smart P&ID (items 5, 11, 15) is a greatstep forward with respect to analyzing plant, but such a concept doesnot exist yet regarding people (organization) and procedures. Thelatter, procedures, should not be too difficult to realize. The two systemapproaches, STPA and BLHAZID (items 9 and 11) seem to promisemost; the former if the lack of automation can be solved, and the latterif people and procedures can be included. The Taylor automated HAZOP shows that much can be achieved and seems in the present stateof affairs be the best option. In a dynamic operational sense, othermethods, such as accident database search (item 12) and process simulation (item 13), will support. What remains needed is a checklist fora process and occupational safety survey concerning general measures:the many items outside the plant equipment proper, such as buildingfeatures, fire safety provisions, draining of areas, etc. (see, e.g., Webb'slist in Crowl and Louvar, 2002)