CSE503: Software Engineering
Lecture 12-13 (February 1 & 3, 1999)

David Notkin

• I showed the Michael Jackson videotape on issues in requirements and specification
• This took all of one lecture and about ½ of the following lecture
• In the remaining ½ lecture, I covered the introductory material to Z, following the basics of the birthday book example
• Basics thrust of Z
• Static schema
• Dynamic schema
• The BirthdayBook schema
• The AddBirthday schema
• Including the proof of known` = known u {name? |-> date?}
• And how this proof doesn’t follow through if AddBirthday is defined using {name? |-> date?} \iselem birthday’