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          Str#6. "Four Kinds of Features" Strategy // identifying purpose and features

          - Be certain to include features that cover the following:

          1. Log important information.

          2. Conduct business.

          3. Analyze business results.

          4. Interact with other systems.


          Str#6a. "Add Features, Inspired by Patterns" Strategy // identifying purpose and features

          - Add features inspired by the stereotypical responsibilities of a participant (in Patt#3, Participant-Transaction), transaction (in Patt#6, Transaction - Transaction Line Item), and place (in Patt#4, Place-Transaction).

          - Examples: assess the performance of a participant (how many, how much), calculate the total of a transaction, assess the performance of a place (how many, how much).


          Str#6b. "Organize and Prioritize Features" Strategy // identifying purpose and features

          - Organize the features into &quotfeature categories" (also known as &quotuse cases").

          . Example: maintaining employee info; assigning employees; assessing employee performance

          - Prioritize the features.

          . Identify the prioritization criteria. For example: normal sequence of business usage; greatest risk; customer interest; management interest; ease of implementation.


          Str#7. "Calculation Results and Decision Points" Strategy // identifying purpose and features

          - Add features that deliver calculation results.

          - Add features that support decision points.


          Str#8. "Best and Worst Features" Strategy // identifying purpose and features

          - Ask users:

          - What are the best features of the current system? Of competitive systems?

          - What are the worst problems of the current system? Of competitive systems?

          - What are the unneeded features of the current system? Of competitive systems?


          Str#9. "Top 10" Strategy // identifying purpose and features

          - Build a list of features.

          - When you face an abundance of features (or classes, attributes, services), go after the top 10.

          - Why: avoid being overwhelmed by a sea of low-level details.


          Str#10. "Now and Later" Strategy // identifying purpose and features

          - Consider current capabilities--and anticipated future capabilities.

          - Ask, "How is it done now? How will it be done later, with the new system?"

          - Look at things that people do to objects now, and consider features you can add (your automated objects might be able to do those actions to themselves).


          Str#11. "Reengineer on the Boundaries" Strategy // identifying purpose and features

          - Look at each organization or automated system boundary.

          - Look for duplicate efforts on each side of such a boundary.

          - Model the capability one time--and encourage some reengineering improvements for the organization.


          Str#12. The "Smarter Devices" Strategy // identifying purpose and features

          - Look for opportunities to use smarter devices, simplifying your object model and reducing software development schedule and costs.

          - When building an object model in a field with rapidly changing data acquisition and control technology, be sure to take a systems perspective, spanning both hardware and software.

          posted on 2005-10-11 16:51 ^ Mustang ^ 閱讀(1059) 評(píng)論(0)  編輯  收藏 所屬分類: OO

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