19993Re: [scrumdevelopment] Tracking hours for budgets and billing
- Mar 6, 2007If your company already has this billing and budgeting requirement, then it presumably already hasa system for people to enter their time for billing and budgeting purposes and software to accumulate these time entries appropriately. Why duplicate this effort - just ask the developers to continue using the pre-existing system for this purpose, and leave the burn-down and task board unpolluted with the additional noise of actual times.
Not only will adding noise to the burn-down and task board make those tools more difficult for the team to read at a glance and use for their intended purpose, but I have found that putting actual on the same information radiator as revised estimates causes people to subconsciously compute the estimate of a task on day N+1 by subtract the actual time spent on day N from the estimate on day N. This biases the data that the team depends on for self-organizing in a way that will tend to hide problems until later in the sprint.
SteveOn 06 Mar 2007 06:49:51 -0800, Jeremy Haile <jhaile@...> wrote:
Scrum only prescribes updating hours to show the amount of time
remaining on features. This works great in combination with a burn-down
chart to help manage delivering features within a Sprint.
However, I work for a software company that not only needs to be able to
deliver software within a sprint (or by a deadline), but also needs to
deliver it within a defined budget.
For example, let's say I'm building a web application and working on a 3
week sprint. If I work 50 hours each week, a burn-down chart may look
like everything is on track to be delivered during this sprint, but I
may still overrun the budget since we bill our clients on an hourly
basis. (10 hours * 3 weeks = 30 hours over-budget) Although if we
planned our sprints based on the number of hours worked and stuck to it
exactly, this might not be an issue - in reality, the number of hours
can vary week-by-week.
Our approach so far has been to track the hours that developers work on
specific tasks on a daily basis. This adds significant overhead,
headache, and is not "pure Scrum." We have typically reported hours to
tasks or features that are in the Sprint backlog.
However, sometimes your activities throughout the day are not directly
related to a particular backlog item (e.g. writing e-mails, having a
general design meeting, etc.) We either end up adding in special tasks
for "administrative" work, or lumping those hours into the "most
I've thought about trying to completely separate the "Scrum management"
from the "billing/budget management." In this scenario, we would track
our hours in general buckets for "billing purposes", and update
remaining hours on features for "Scrum purposes." However, this can
make developers feel like they are having to do double time tracking.
Also, some of our managers like the ability to compare the number of
hours we've worked on tasks to our original estimates. (although you
could argue this is not really a good or necessary thing)
Does anyone have any experience in implementing Scrum and also meeting
the needs of doing hourly tracking for budgetary and billing purposes?
Does anyone have recommendations for methods or tools that could support
this process? I'd appreciate any ideas or thoughts!
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