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AnA07S05AllocationStartEndAssistance

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Jeroen Baten edited this page Mar 9, 2018 · 1 revision

TWiki> LibrePlan Web>AnA07S05AllocationStartEndAssistance (04 Apr 2011, JavierMoran)EditAttach

AnA07S05AllocationStartEndAssistance

Story summary Allocation Start End Assistance
Iteration AnA07PlanningWindow
FEA AnA07S05AllocationStartEndAssistance
Story Lead  
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Passed acceptance test No

Tasks

Allocation duration calculation assistance

In the Gantt planning of a project tasks are allocated from start to end or from end to start dependending on the interaction of the following parameters:

  • Type of scheduling used for the project: Forwards scheduling or backwards scheduling.
  • Constraint configured in the task: START_NOT_SOONER_THAN, FINISH_NOT_LATER_THAN, START_IN_FIXED_DATE
  • Project configuration saying if dependencies or constraints have priority.
  • Input/Output dependencies of a task.

Allocations more frequently used are from beginning to end. So, let's put an example about an allocation from end to start:

   * Project A: Forwards planning and dependencies have priority.
   * Task 1:
      * Constraint: START_NOT_SOONER_THAN 1st March
      * Output dependencies: END_END dependency Task1->Task2
      * Allocation: Calculate Workable days
                          Hours: 40h.
                          Resources per day: 1 (100%)
   * Task 2:
      * Constraint: AS_SOON_AS_POSSIBLE
      * Input dependencies: END_END dependency Task1->Task2
      * Allocation: Calculate Resources Per Day
                          Workable days: 3
                          Hours: 20h.

In the scenario above, the Task2 will be allocated from end to start beginning by the end date of the Task1 until completing 3 workable days with 20h of allocation.

In the situation above there is a need in which the user can be assisted more by the program and it is the following: Many times project managers know when a task want to be finished or started but do not have an estimation about the workable days of the task. So, currently user would have to translate to workable days from the calendar to configure allocation and that is a time consuming, boring task which can be automated.

So, specification to solve that is the following:

  • Include a first row in the allocation configuration section aboce start and end dates with the name Allocation direction and two possible values Forwards and Backwards.
  • If the allocation direction is forwards then, do editable the start date if the allocation strategy lets specify duration (calculate number of hours and calculate number of hours).
  • If the allocation direction is backwards then, do editable the end date if the allocation strategy lets specify duration (calculate number of hours and calculate number of hours).
  • If you edit the start date of the task update the planned workable days. The same if you edit the end date of the task.
  • If you change the planned workable days update the start date of the task in case of forwards allocation of the task.
  • If you change the planned workable days update the end date of the task in case of backwards allocation of the task.

How to translate from start/end dates to planned workable days

It will be used the calendar that the task has configured. A workable day will be a day in which the number of hours to work as timetable specified by the task is different from zero.

Implementation note: Hint about how to know if a task is (or will be) allocated forwards or backwards

Class org.navalplanner.web.planner.allocation.FormBinder.WorkableDaysAndDatesBinder and there methods there like allocationRowsHandler.isForwardsAllocation()

User stories

Tasks in this story

Tasks Est Spent To do Risk Reviewer Developer Task Name Start Date Est End Date End Date
Task 14 0 14 Low JavierMoran SusanaMontes Allocation duration calculation assistance      

Total Hours in this Story

User Spent in XpTracker Spent in phpReport Ok?
SusanaMontes 0 0 DONE
Total 0 0 DONE

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