Metrohm tiamo 1.0 Manual - Manual (Page 35)

Electronic signatures 11
2.3 Electronic signatures
2.3.1 Rules
In tiamo methods and determinations can be electronically signed at two levels.
The following rules apply:
• Signature levels
Methods and determinations can be signed at two levels (Signature
Level 1 and Signature Level 2) by entering the user name and pass-
word.
• Multiple signing
Methods and determinations can be signed several times at each
level. All the signatures are saved and documented in the Audit Trail.
• Sign at Level 1
If Level 2 has been signed then no more signatures are possible at
Level 1.
• Sign at Level 2
Level 2 can only be signed when signatures already exist at Level 1.
• Different users
The same user can only sign at either Level 1 or Level 2.
• Reason and note
Each signature must be accompanied by a reason selected from pre-
defined default reasons. A further comment can be entered addition-
ally.
• Saved data
The signature date, user name, full name, reason and note are saved
for each signature.
• Deleting Level 1 signatures
Signatures at Level 1 are automatically deleted when a new version is
generated.
• Deleting Level 2 signatures
Signatures at Level 2 can only be deleted by users who have the ap-
propriate rights.
• Signing methods
Methods can always only be signed individually.
• Signature options
The options for electronic signatures are set on the tab Signatures in
the dialog window
Security settings .
2.3.2 Procedure
With respect to their signatures, methods and determinations can have one of the
following three statuses (see flow diagram):
• Not signed
Methods and determinations that have not been signed can be edited
and deleted; a new version is generated for each alteration.
• Signed (1)
When methods and determinations are signed at Level 1 no new ver-
sions are generated. If methods and determinations signed at Level 1
are edited then a new version is generated that contains no signa-
tures. Methods and determinations signed at Level 1 can be deleted.