1.   Such relations only refer to the name of the referenced module.

2.   Tight coupling relations may be used only in a module of type PACKAGE and must refer to a PREFERRED, LATEST or SELECTED version of the referenced module.

3.   The managers of any newly referenced modules and any packages containing them are notified of the SPR.

4.   They must always refer to PREFERRED, LATEST or SELECTED versions of the referenced module.

5.   It then requests that the DC be activated via the specified package to allow the referenced modules to be changed.

6.   The referenced modules with updated issue numbers can be entered into LIFESPAN.

7.   NFIL No filename has been specified for the referenced module.

8.   NISS No issue has been specified for the referenced module.