TPT User's Guide - PikeTec

TPT User's Guide Page 11
2.3 Creating a declaration
Figure 2: The declaration editor
In order to create a new table entry one has to empty the editor’s input fields located right
below the table by clicking the button labelled “Clear” and then fill these fields with the values,
that describe the new entry:
Type
This drop-down list allows a user to choose which type of declaration is to be created.
Name
This text input field expects a unique string for the new declaration which must follow the
restrictions imposed by TPT.
Location
This text field takes an optional URI that may contain additional information about a
declaration’s external location (if it has one). The exact semantics of an “external location” are
specific to different test execution environments.
Group
This text field takes an optional arbitrary group name, which may be used to easily categorize
declarations according to the user’s requirements.
Data Type
This drop-down list requires a data type to be chosen for the new declaration.
Value
This text field expects a default value to be entered for the declaration. Naturally this value has
to be compatible with the selected data type.
Volatile
This check box is only available for channels. When selected, the channel to be created will be
“volatile”, which refers to the behaviour of the values of the channel over time. While a value
that has been written to a non-volatile channel at a certain point in time persists to later times,
a volatile channel discards its current value when time increments to the next ‘instant’.