Yesterday’s Weather | Glossary

Definition
Yesterday’s Weather is a term used in XP, which states, “The weather today will most likely, be the same as the weather tomorrow”. Formally speaking, it’s used to keep teams in XP from over committing to tasks, and helps them calculate how much work is going to get done in a sprint or iteration, based on the observations from previous sprint or iteration.

Further Reading

  • “Extreme Programming Explained”, by Kent Beck.
  • “Planning Extreme Programming”, by Kent Beck.

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XML | Glossary

Definition
, XML an abbreviation for Extensible Markup Language, defines a set of rules, for encoding documents in a format, that is both human-readable, and machine-readable by using tags that can be created, and defined by users.

Origin
Created in the early 1990’s.

Further Reading

  • “Learning XML”, by Erik T. Ray.
  • “XML Bible”, by Elliotte Rusty Harold.

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