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Hints and Tips
A well-structured model with time and space properties
- Exposes only those time and space properties that are necessary and sufficient to capture the desired behavior of the system.
- Centralizes the use of those properties so that they are easy to find and easy to modify.
When you draw a time or space property in the UML,
- Give your timing marks (the names of messages) meaningful names.
- Clearly distinguish between relative and absolute time expressions.
- Show space properties only when it's important to visualize the placement of elements across a deployed system.
- For more advanced needs, consider the UML Profile for Schedulability, Performance, and Time . This OMG specification addresses the needs of real-time and high-performance reactive systems.
