Activity: Refine the Development Plan








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Activity: Refine the Development Plan















This activity refines the Software Development Plan, as needed.








DescriptionWork Breakdown StructureTeam AllocationWork Product Usage








Relationships



Parent Activities


Project Management






Description



The Software Development Plan was created and reviewed early in the inception phase.  Thereafter, generally at the beginning of each iteration, the Software Development Plan (and its enclosures) may need revision, based on the previous iteration's experience and the Iteration Plan for the next. The Project Manager also collates all other contributions to the Software Development Plan and assemble them in  Task: Compile Software Development Plan.



Properties



Event Driven


Multiple Occurrences


Ongoing


Optional


Planned


Repeatable



Staffing



This activity will obviously stress the Project Manager's estimation, planning and writing skills. Also, the Project Manager must ensure buy-in from affected stakeholders during the construction of these plans, so presentation and communication skills will also be important. The Management Reviewer will need to be experienced in the estimation of projects in the relevant business or technical domain and should be able to make judgments about the validity of assumptions made by the Project Manager. The Management Reviewer should also have enough understanding of the Rational Unified Process to judge whether the  Development Case is accurately represented in the Software Development Plan.



Usage



Usage Guidance This activity typically occurs at the beginning of each iteration. Estimation should ideally be based in the organization's own experience, which is then used to calibrate an estimation model, such as COCOMO. (See [BOE81] for a description of the original model, or go to http://sunset.usc.edu/research/cocomosuite/index.html for the latest work.) If the Project Manager is starting from scratch, using default values for model coefficients, it will be important to use other methods to validate the estimates. Just as important is to obtain staff and other stakeholder agreement that the estimates are realistic and achievable. However, the Project Manager has to take into account the experience of staff giving feedback about estimates. More junior staff may be just guessing numbers and then adding large margins for error; conversely, their effort estimates may be naively low. The Project Manager must be circumspect when dealing with estimates from junior staff, and be prepared to counsel them when necessary, and offer the assistance of a more experienced peer. See Task: Plan Phases and Iterations for more information about estimation. All enclosed plans and sections of the Software Development Plan should be evaluated through internal walkthroughs and reviews before the Project Planning Review occurs.





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