Projects fail at the beginning. Two of the main reasons for project failures are inaccurate estimates and scope creep / deficit. Of these two major causes, Scope creep is easy to manage, as most of the clients are willing to pay for extra scope than planned, where as scope deficit results in not meeting the customer’s must have feature list, and will result in customer dissatisfaction.
The best remedy is to;
- Spend enough time on requirements collection
- Proper scope definition
- Scope decomposition into a work breakdown structure
- 8-80 rule for work package sizing
- Estimating the effort of the work packages using;
- Expert judgment
- Delphi technique
- Three point estimates
- Analogous estimation
- Parametric estimation
- Following the change management procedure for scope updation
The following video of mine explains most of the concepts discussed so far in this blog post.