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If your client requires more specific assurance about what will happen when, try to do the project in multiple stages. Start with an initial budget of probably just a few weeks始 work while you do some research and even try out a direction or two. Then, when the research is done and everyone has a better sense of what should be in scope, you can do a proposal for the design, build and deployment of the site. (See chapter 10, an interview with Andy Budd of Clearleft, for more information.)
Product-driven estimation For product-driven estimates, we make a list of all the work products we think we will need to create to complete the project. A work product may be any type of deliverable, but it must have some sort of documentation and a specific owner responsible for seeing it accomplished. Work Product
Deliverable that must be produced in order to complete a project and achieve its objectives
Each WP should have:
Documentation, workshop(s), owner(s)
Writing a proposal Now it comes to the proposal. At this point, all of the pre-project work that is going to be finished has been finished, and it始s up to the project team to work out what can reasonably be accomplished within the project itself. Here are some things that are handy to know when estimating a project: