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Each data set has to be declared to DSPACK with a list of attributes which describe it. Following attributes are required:
- - character identifier of the data set (up to 16 characters, no dots allowed). DSPACK is case sensitive but accepting a convention of using only upper case makes the interactive work easier.
- - following data set types are allowed at present:
- - DSPACK stores separately constants and variables.
Variables are kept in section 1 and will usually be cleared after each event.
Constants are kept in section 2 and are permanent.
Section 0 means that the data set cannot hold data, the definition is only a template to be used in other definitions.
- NUMBER OF ITEMS
- ITEM NAMES
- - each item has a name up to 16 characters.
For structures each item also requires the name of data set which describes the item.
More attributes (like object class) may be stored with the data set definition but are not required immediately when defining the data set.