17.1.3.2 Activity

The activity object describes an activity that has actually occurred, which provides actual values to the parameters. An activity is a single implementation of the template it is associated to.

An activity contains:

• A link to the template it is instantiating.
• A list of actual parameter values.

• An optional parent activity, when the activity is a sub-activity.

Activity Parameters

Each parameter is represented by different objects according to the type of value it represents: DataObjectParameter, FloatingPointQuantityParameter, StringParameter, IntegerQuantity, TimeIndexParameter.

A parameter either: 1) stores a value or 2) references another object, for example, the DataObjectParameter. Its Title must match the Title of the corresponding ParameterTemplate.

To provide an optional textual description about the way the values have been selected for this parameter, use Selection. For example: “All wells” or “Porosity with maximum values greater than 0.05”.