| Sridhar Krishnaswamy 2002-10-05, 6:38 pm |
| I think the choice to pick should be A.
>-----Original Message-----
>Question:You are design a VB application that will
dacilitate the billing
>process for hospitals.The billing calculations performed
by the application
>are based on laws that are likely to change in the
future. When these laws
>change, you will need an easy way to make modifications
to your
>application.You want to ensure that changes to the
billing algorithm will
>not force you to recompile the entire application. You do
not want to
>redistribute the application. How should you design this
application?
>
>A. place all of the billing logic in COM components that
reside on a central
>server. When changes are required, replace these
components with new version
>on th server.
>B. place all of the billing logic in a separate code
module and only
>recompile this module when the billing logic changes.
>C. use conditional compilation statements to control
which code segments
>should be executed
>D. build an activeX control that implements business
logic. Change the
>progid and the clsid ofthe control when the billing logic
is modified.
>This will allow client applications to automatically
detect changes
>made to the billing logic, and they will be able to
download the lastest
>version of the activeX control.
>
>
>
>
>.
>
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