Planning Using Primavera Project Planner P3 Version 3.1 Revised 2006

Activity codes are used to sort, select, summarize and group activities under headings. They are used to present different views of your project during scheduling and statusing. These headings are often based on your Work Breakdown Structures (WBS) and Organization Breakdown Structure (OBS).
Defining the code structure may be a major task for project managers. The establishment of templates makes this simpler as your standard codes would be predefined.
Work Breakdown Structure
Projects should be broken up into manageable areas by using a Work Breakdown Structure or WBS. The WBS is usually based on the various components of the project.
Organization Breakdown Structure
Organization Breakdown Structure is a term used to describe reporting hierarchy of people with areas of responsibility, just like an organization chart within a company.
Other Breakdown Structures
Other common breakdown structures found are:
Contract Breakdown Structure, allocating activities to contracts,
System Breakdown Structure, breaking a System into Sub-Systems and Sub-Sub- Systems as used in System Engineering and
A code structure to break a project down into physical areas.
P3 Activity Code Dictionaries are created for each project breakdown structure and Activity Code Values assigned to reflect the items within the breakdown structure. Activity Code Values are assigned to each activity so activities may be grouped and sorted.
Select Data, Activity Codes to define the Activity Codes.
P3 has two types of activity codes, Activity codes and Activity ID Codes.

Activity codes are codes...