Describe the following conversion strategies: direct, parallel, phased, or pilot.

What will be an ideal response?


• Withdirect conversion, the user stops using the old system and begins using the new system on a certain date. The advantage of this strategy is that it requires no transition costs and is a quick implementation technique. The disadvantage is that it is extremely risky and can disrupt operations seriously if the new system does not work correctly the first time.•Parallel conversion consists of running the old system alongside the new system for a specified time. Results from both systems are compared. The advantage of this strategy is that you can fix any problems in the new system before you terminate the old system. The disadvantage is that it is costly to operate two systems at the same time.• In aphased conversion, each location converts at a separate time. For example, an accounting system might convert its accounts receivable, accounts payable, general ledger, and payroll sites in separate phases. Each site can use a direct or parallel conversion. Larger systems with multiple sites may use a phased conversion.• With apilot conversion, only one location in the organization uses the new system - so that it can be tested. After the pilot site approves the new system, other sites convert using one of the other conversion strategies.

Computer Science & Information Technology

You might also like to view...

When overloading the operator ++, ________ is used to distinguish preincrement from post increment.

A) a parameterless data type B) the keyword void C) a dummy integer parameter D) the placeholder [ ] E) None of the above

Computer Science & Information Technology

File ____________________ ensures that files in two or more locations contain the same data.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

Which of the following is true for the input element?

A. It should be placed below the label element code. B. It should be placed above the label element code. C. It is an empty element. D. both a and c

Computer Science & Information Technology

In a database saved with backward compatibility, none of the features added to Access since that earlier version will be available

Indicate whether the statement is true or false

Computer Science & Information Technology