% End
Timeliness per Project is a project metrics that show the time deviation (expressed
as percentage) in providing the project deliverables. % End Timeliness is calculated
using the formula below:
% End
Timeliness = ((Actual Delivery Date Planned Delivery Date) / Planned
Duration) * 100
Actual Delivery Date is the date when the deliverable was actually
provided.
Planned Delivery Date is the estimated date when the deliverable should
be provided.
Planned Duration is the aggregated estimated duration of project phases.
Planned
Duration is calculated as the difference between Planned Delivery Date
and Start Date of the first phase in the set of phases ended with delivery of a
product or service. In other words, Planned Duration is the sum of all durations
of phases preceding the delivery of a product or service.
Let’s take development project as the example. Suppose the part of
development project comprises three Phases: Phase 1 – Initiation, Phase 2 Requirements
Specification and Phase 3 – Analysis &Design. After Phase 3 is complete, the
company should provide Analysis and Design Document to the customer (this
document is the result of work during three Phases).
Planned Delivery Date for Analysis and Design Document is 04/09/2012
Actual Delivery Date for Analysis and Design Document is 04/16/2012
Planned Duration for three Phases:
Phase 1. Initiation 25 days
Phase 2. Requirements Specification – 30 days
Phase 3. Analysis &Design – 31 day
Total Planned Duration of three Phases is 86 days
According to the formula for computing %
End Timeliness:
% End
Timeliness = ((Actual Delivery Date Planned Delivery Date) / Planned
Duration) * 100= (04/16/2012 04/09/2012) / 86 = (7/86) * 100 = 8.14%
To calculate % End Timeliness per Project please follow the
steps below:
- Add custom
field “Planned Delivery Date” with code “cf_planned_delivery_date”
and Type “Date”
- Add the
custom field “Actual Delivery Date” with code “cf_actual_delivery_date”
and Type “Date”
- Add the
custom field “Planned Duration” with code “with code “cf_planned_duration”
and Type “Duration”
- Add the
custom field “% End
Timeliness” with the formula:
(($cf_actual_delivery_date $cf_planned_delivery_date) / $cf_planned_duration)*
100
In the field “Display format” enter: #0.00% to display the value as 8.14%
for example or #0.0% to display it as 8.1%
- On Task Tree select the task group for which you need to display “% End Timeliness” per
Project and
select “Custom fields options”
- To enter Planned
Delivery Date, Actual Delivery Date and Planned Duration per task group or
project phase you need to right click on task group with project tasks,
select “Custom fields options” and select “Edit” for the corresponding
custom field
- To enter
the values for the custom fields “Planned Delivery Date”, “Actual Delivery
Date” and “Planned Duration” per task group right click on task group with
project tasks and select “Edit”
Alternatively
it is possible to calculate aggregated Planned Duration for required project
phases automatically. Following the example above the program can display the
total planned duration 86 days for 3 Phases that precede the phase for which
you need to calculate %End Timeliness (4. A&D Document):
Phase 1 – Initiation (25
days)
Phase 2 Requirements
Specification (30 days)
Phase 3 – Analysis
&Design (31 day)
86 days = 25 days + 30 days
+ 31 day
- To
calculate aggregated Planned Duration automatically you need to create tasks
groups associated with project phases (following previous example: 1. Initiation, 2. Requirements Specification, 3. Analysis &Design) under the task group for which you need to
calculate %End Timeliness (4. A&D Document)
- To set
automatic aggregation for task group for which you need to calculate % End Timeliness (A&D Document) right click on this task group and
select “Aggregated (for task group)” for the custom field “Planned
Duration”
- Set the following custom fields settings for the custom field “%End
Timeliness”
- In “Settings for” select “This task group”
- select “Enable”
- select “Calculated by custom field formula (for task group)”
%End Timeliness per Project on Task Tree