Timing diagram (Unified Modeling Language) facts for kids

A timing diagram is a special kind of drawing used in computer science. It helps us understand how different parts of a computer system work together over a period of time. Think of it like a timeline that shows when things happen and how they change.

Timing diagrams are part of something called the Unified Modeling Language (UML). UML is like a special language with pictures and symbols that computer programmers use to design and describe software systems. A timing diagram focuses on when things happen. It's really good for showing how the timing of events affects how a system behaves.

What are Timing Diagrams Used For?

These diagrams are used to explore how different parts of a system, called objects, behave over a specific time. They are very useful for showing how things change their state (like being "on" or "off") or how their values change over time. For example, you could use a timing diagram to show how a light switch turns on and off, or how a robot's arm moves at certain times.

How is it Different from a Sequence Diagram?

A timing diagram is a special type of sequence diagram, but they look a bit different. In a normal sequence diagram, time usually goes down the page. But in a timing diagram, the axes are flipped! This means:

• Time increases from left to right, like reading a book.
• The different parts of the system (called lifelines) are shown in separate sections, arranged one above the other. This makes it easier to see how each part changes over time.

Types of Timing Diagrams

There are two main styles of timing diagrams:

• Concise notation: This style is simpler and shows the different states an object can be in. It's good for quickly seeing when an object changes from one state to another.
• Robust notation: This style is more detailed. It can show not only the states but also how values change over time, and even specific events that happen. It's used when you need a very precise view of the timing.

See also

In Spanish: Diagrama de tiempos para niños