Sommerville-Software-Engineering-10ed

Glossary 775
wilderness weather system
A system to collect data about the weather conditions in remote areas. Used as a
case study in this book.
workflow
A detailed definition of a business process that is intended to accomplish a
certain task. The workflow is usually expressed graphically and shows the
individual process activities and the information that is produced and consumed
by each activity.
WSDL
An XML-based notation for defining the interface of web services.
XML
Extended Markup Language. XML is a text markup language that supports the
interchange of structured data. Each data field is delimited by tags that give
information about that field. XML is now very widely used and has become the
basis of protocols for web services.
XP
See Extreme Programming.
Z
A model-based, formal specification language developed at the University of
Oxford in England.