Almost all of the other rules in UETA serve the fundamental principles set out in Section 7, and tend to answer basic legal questions about the use of electronic records and signatures. Thus, Section 15 determines when information is legally sent or delivered in electronic form. The traditional and statutory rules that govern mail delivery of the paper memorializing a transaction can't be applied to electronic transactions. Electronic rules have to be devised., and UETA provides the rule. Another rule that supports the general validity of electronic records and signatures in transactions is the rule on attribution in Section 9.
Electronic transactions are mostly faceless transactions between strangers.
UETA states that a signature is attributable to a person if it is an act of that person, and that act may be shown in any manner. If a security procedure is used, its efficacy in establishing the attribution may be shown. In the faceless environment of electronic transactions, the obvious difficulties of identification and attribution must be overcome. UETA, Section 9 gives guidance in that endeavor. Much has been much written about digital signatures in electronic commerce.