Solution : https://service.sap.com/sap/support/notes/564926 (SAP Service marketplace login required)
Key words : 
solution change history date              short description-----------------------------------------------------------------------oct/31/02       version 0001oct/13/03       note 664865dec/04/03       note 685532sep/24/04       error, abap/4 dictionary    database tables                1         tstcclasswith eh&, current wwi version, system displays eh&, ehs-ihs-ia, ehs-hea-iil, ehs-ihs-rsk, wp-pi component, separate correction instruction, installed ehs add-
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