Sunday, November 08, 2009

数据仓库建模_3

In reality, scope and justification go hand-in-hand,
划定范围和调整是同时进行的.
Note Project scope should be driven by the business's requirements.
范围是由业务需求决定的.
Each early iteration of your DW/BI program should be limited in scope to
the data resulting from a single business
process.起初的时候不能简单问题复杂化.In other words, start small

Given the lengthy project timeframes associated with complex software
development projects combined with the realities of relatively high rates
of under-delivery, there's
been much interest in the rapid application development movement, often
measured in weeks. 快速开发(通常以周记)


In fact, we suggest that BI team members work in close proximity to the
business so they're readily available and responsive;
开发人员和业务人员更亲近,业务为导向的.

Some development teams have naturally fallen into the trap of creating
analytic or reporting solutions in a vacuum. In most of these situations,
the team worked with a small set of users to extract a limited set of
source data and make it available to solve their unique problems. The
outcome is often a stand-alone data stovepipe that can't be leveraged by
others or worse yet, delivers data that doesn't tie to the organization's
other analytic information.
做分析做成了报表,这不正是我们组现在的问题所在么?因为孤立的获取需求,所以做出来的东西也一个个的孤立了,不能互相使用.


project charter, the document explains the project's focus and motivating
business requirements, objectives, approach,anticipated data and target
users, involved parties and stakeholders, success criteria,assumptions and
risks. It may also be appropriate to explicitly list data and analyses
关注点,需求,客观现状,途径,预计中的数据和目标用户,相关的组织\股东,成功标准(验收标准),前提和风险

P38

No comments: