Activity Relationships (tipcs4110m000)

Use this session to maintain the relationships between a project's activities, thus enabling a network planning for the project to be carried out.

This session enables you to determine the sequence of activities and the start and finish time of an activity compared with the preceding or next activity.

Note: 
  • Relations between activities are recorded by manual input or by running the Copy Project (tipcs2210m000) session.
  • Relations between activities are used in the time planning and the rough capacity planning in Network planning.

Field Information

Project

project

Status

The status of the project.

Sequence Number

sequence number

By default, LN shows numbers in the sequence of 10, 20, 30, and so on. Numbering is free. However, you are recommended to adopt these default values, because the intervening numbers are necessary to insert any activity relationships.

Preceding Activity

The code of the activity for which you want to create a relationship with another activity.

Next Activity

Enter the code of the activity which has a relationship with a preceding activity.

Relationship Type

The relation type indicates the relationship between the preceding and the next activity.

Allowed values

ES (End-Start)

The next activity can start when the preceding activity has ended.

SS (Start-Start)

The next activity and the preceding activity can start simultaneously.

EE (End-End)

The next activity and the preceding activity must end simultaneously.

Float Time (Day)

Enter the absolute relationship float-time in days.

Note: A positive float-time always means a positive shift of the next activity with respect to the preceding activity.

Example: Two activities have an end-start relationship. If these activities directly link up with each other, the absolute float-time is zero. If the next activity is to start four days before the end of the preceding one, you can enter an absolute float-time of minus four. If the next activity is to start five days after the end of the preceding activity, the absolute float-time is five.

Float Time (in Perc)

Enter the relative relationship float-time as a percentage of the duration of the preceding activity.

Note: A positive float-time always means a positive shift of the next activity with respect to the preceding activity.