Skip to main content
Skip table of contents

DT465 Link

Below you will find descriptions of individual parameters of the links.

ID (technical) of the successor project

Functional ID of the successor project

The parameter can be edited in the following module by users with modification rights:

Name of the successor project

ID of the successor task

ID (functional) of the successor task

The parameter can be edited in the following module by users with modification rights:

Name of the successor task

Link type

Values:

  • SS: Start-Start (task A can start when task B starts)
  • SF: Start-Finish (in order for task B to be finished, it is required that task A has started)
  • FS: Finish-Start (task B cannot start until after task A is finished)
  • FF: Finish-Finish (in order for task B to be finished, it is required that task A has finished)

The parameter can be edited in the following module by users with modification rights:

The time interval is the difference between the reference point for the predecessor task and the reference point for the successor task.

Details

  • Both positive and negative values are permissible for a time interval:
    • Positive time interval: Start of task 2 = End of task 1 + time interval.
    • Negative time interval: Start of task 2 = End of task 1 - time interval. As a result, an overlap occurs.

Example

  • Depending on the entry in the Link type % field, the time interval is either an absolute value (checkbox deactivated) or a percentage value (checkbox activated).
    • Calculation of a percentage time interval:
      • 100 x (absolute) time interval/task duration (predecessor)

The parameter can be edited in the following module by users with modification rights:

The link total float of a link is the period by which a time interval can be changed without exceeding the total float time of the successors. It logically equates to a "total" floating time of the link. The free float of a task is the minimum free float of all successor tasks.

Note

  • The respective data field is hidden by default but the user can have it displayed if required.

Defines whether the time interval is calculated as an absolute or as a percentage value The time interval is calculated on the basis of the task duration.

Values

  • : The time interval is a percentage value which depends on the duration of the predecessor task
  • : The time interval is an absolute number

The parameter can be edited in the following modules by users with modification rights:

Note

  • The respective data field is hidden by default but the user can have it displayed if required.

Minimum conditions restrict the earliest times for tasks and maximum conditions restrict the latest times for tasks.

Details

  • FS link between task A to task B under minimum condition means:
    • Task B cannot start until Task A is completed.

  • FS link between task A to task B under maximum condition means:
    • the latest possible start time for task B is the time at which task A finishes.

  • Combined minimum and maximum condition. If a minimum and a maximum condition of the same link type are set simultaneously between two tasks, then the tasks will be chained together. Unlike the situation in which there is only a minimum condition, in this linkage there is no float for task A and B, even though a requested end has been set.

Values

  • - Minimum condition in linkage
  • - Maximum condition in linkage

The parameter can be edited in the following modules by users with modification rights:

Note

  • The respective data field is hidden by default but the user can have it displayed if required.

The link calendar will be taken into account in the interval calculation for subsequent dates.

The parameter can be edited in the following modules by users with modification rights:

Note

  • The respective data field is hidden by default but the user can have it displayed if required.
See also: Taking into account of different calendars in scheduling, Create calendar

This parameter defines whether the link is to be soft or fix

Values

  • - soft link
    • In the case of tasks connected via soft links, the calculated dates are calculated as if no links existed.
    • However, the successor task gets a visualization of the potential delay (in PLANTA called "overlapping") with the predecessor.
    • If a soft link is used, the dates will be retained. The required shift is displayed and has to be carried out manually by changing the requested date.
  • - fixed link
    • If you use fixed links, the schedule is calculated in accordance with the set links. Requested dates are not taken into account.

Examples from PLANTA project

  • Fixed link with FS0
    • Successor immediately follows predecessor.

  • Soft link with FS0
    • Date of successor is determined by the defined requested date.
    • Red circles indicate overlapping with predecessor.

Data items concerned

Bar symbol

The parameter can be edited in the following modules by users with modification rights:

Note

  • The respective data field is hidden by default but the user can have it displayed if required.

The parameter defines whether the successor task is an external task

Values

  • - The successor task is an external task
  • - The successor task is no external task

Note

  • The checkbox is activated automatically (manual editing not possible) if an external successor task is selected for a task (in the module schedule).
See also: External Tasks

Requested start date of the successor task

Details

Requested end date of the successor task

Details

Calculated start date of the successor task

Details

  • The value is copied from the Calc. end of the task in DT463.

Calculated end date of the of the successor task

Details

  • The value is copied from the Calc. end of the task in DT463.

Actual start date of the successor task

Details

  • The value is copied from the Actual start of the task in DT463.

Actual start date of the successor task

Details

  • The value is copied from the Actual end of the task in DT463.

In this field is shown,  whether the successor task is a regular task, a milestone, a master milestone

  • No entry: regular task
  • 1: milestone
  • 2: master milestone

Bar for the calculated dates of the successor task

Bar for the requested dates of the successor task

Name of the parent task of the successor task

Note

  • The respective data field is hidden by default but the user can have it displayed if required.

Here, the work breakdown structure of the successor task is displayed 

Note

  • The corresponding data field is hidden by default but the user can have it displayed if required.
JavaScript errors detected

Please note, these errors can depend on your browser setup.

If this problem persists, please contact our support.

Contact Support Close