The Unified Modeling Language is a standard graphical language for modeling object-oriented software（）can show the behavior of systems in terms of how objects interact with each other.

（）is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes.

The strategies for handling risk comprise of two main types: negative risks, and positive risks. The goal ofthe plan is to minimize threats and maximize opportunities. When dealing with negative risks, there are three main response strategies（）,rransfer ,Mitigate.

The （）process ascertains which risks have the potential of affecting the project and documenting the risks＇ characteristics.