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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! SDDL:         PLAN_WINDOWS.SDDL
!
! Purpose:      This defines the plan_windows relation.
!
! Modification History:
!
!   Date       PR      Who                       Reason
! --------   -------   ---   -------------------------------------------------
! 07/18/94   27073     SSW   SPSS Planning Windows Support
! 02/02/95   28292     SK    Modified "REPLICATION" wording under 
!                             SUBSYSTEM_USING
! 01/16/96   30681     EGB   Use new LRP_NAME_TYPE
! 04/16/97   33890     MRB   Field names changed in ASSIST from wnd_ to _window
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!

LANGUAGE        FORTRAN,SQL

INCLUDE         ZSPSS_USER_TYPES.SDDL

CONSTANT        WINDOW_TYPE_PLANNING

    VALUE   2

END_CONSTANT

RECORD  PLAN_WIN_TYPE

!------------------------------------------------------------------------------
!
!   RECORD INFORMATION
!
!------------------------------------------------------------------------------

    DESCRIPTION		

	"Plan windows are defined to be the time interval in which SPSS must 
	 schedule a scheduling unit.  Plan windows are generated by SPIKE and
	 the set of plan windows for all SUs defines the Long Range Plan (LRP).
	 This relation contains multiple sets of plan window sets, i.e. it 
	 contains one or more versions of the Long Range Plan.  The lrp_base_cat
	 relation tells which LRP is the current operational LRP to use.
	 
	 Plan windows are treated as a scheduling constraint by SPSS.  
	 Therefore, SPSS does its best to ensure that each scheduling unit is 
	 scheduled before its last plan window ends.

	 Constraint windows are related to plan windows, but are broader
	 in the sense that they are time intervals in the proposal cycle where 
	 SPIKE thinks a scheduling unit (SU) can be scheduled. This is based 
	 on the target position, orientation requirements, links, locks, 
	 phase windows and the minimum visibility period. The windows are	
	 start-to-start, i.e., a an SU must start before the window end, but 
	 may end after the window end.  

	 A plan window will be a subset of a constraint window and SPSS users
	 can verify SPIKE constraint windows using the CALOPT/VERIFY command.  
	 This gives SPIKE feedback on the accuracy of its constraint windows and
	 with that information it can create a more accurate LRP comprised of 
	 plan windows known to be schedule on SPSS calendars."

!------------------------------------------------------------------------------
!
!   FIELD INFORMATION
!
!------------------------------------------------------------------------------
 

    FIELD sunit_id
	TYPE SUNIT_ID_TYPE
    END_FIELD


    FIELD version_num
	TYPE VERSION_NUM_TYPE
    END_FIELD


    FIELD lrp_name
        TYPE LRP_NAME_TYPE
	RELATED_FIELDS	"lrp_base_cat.lrp_name"
    END_FIELD


    FIELD visit_id
	TYPE VISIT_ID_TYPE
    END_FIELD


    FIELD prop_id
	TYPE INT_PROPOSAL_ID_TYPE
    END_FIELD


    FIELD status
	TYPE		C10
	DESCRIPTION	"This field will be used to indicate the
                         following states:

                                 - Window generated by SPIKE
                                 - SU was ignored
                                 - Window set by focus set
                                 - Pool focus set
                                 - At least one edge of the window
                                   is a hard constraint.

                         The field is used to aid program coordinators.  The 
			 valid values are yet to be defined."
    END_FIELD


    FIELD window_begin
	TYPE SOGS_CHAR_TIME_TYPE 
	DESCRIPTION	"This field is the start time of the plan window."
    END_FIELD


    FIELD window_end
	TYPE SOGS_CHAR_TIME_TYPE 
	DESCRIPTION	"This field is the end time of the plan window."
    END_FIELD

END_RECORD

 
!------------------------------------------------------------------------------
!
!   RELATION DECLARATION
!
!------------------------------------------------------------------------------
 
RELATION  plan_windows
 
    TYPE             PLAN_WIN_TYPE
 
    DESCRIPTION      "Long Range Plan Windows Relation"
 
    SUBSYSTEM_USING  "SPSS", "SPIKE", "REPLICATION-TO-SOGS", "TRANS", "CCLIST"

    RELATED_FIELDS  "constraint_windows.*" "constraint_windows_ver.*" "lrp_base_cat.*"


    INDEX  plan_windows_1
        TYPE         unique, clustered
        FIELDS       sunit_id, version_num, lrp_name, window_begin
    END_INDEX
 
END_RELATION
 
!------------------------------------------------------------------------------
!
!   INSTANCE DECLARATION
!
!------------------------------------------------------------------------------
 
INSTANCE plan_windows

    TYPE PLAN_WIN_TYPE

END_INSTANCE

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