Application Development - The CIO's Guide to Oracle Products and Solutions - page 236

Application Testing Suite comprises the following tightly integrated
products:
1. Oracle Functional Testing : Automated functional and regression
testing of web applications
2. Oracle Functional Testing Suite for Oracle Applications : Functional
and regression testing of Oracle packaged applications
3. Oracle Load Testing: Scalability : Performance and load testing of
web applications
4. Oracle Load Testing Suite for Oracle Applications : Scalability, perfor-
mance, and load testing of Oracle packaged applications
5. Oracle Test Manager : Test process management, including test
requirements management, test management, test execution, and
defect tracking
Installation
When you have a very small system, you can just put it online (direct).
If your system is larger, then there are several ways to approach install-
ing (implementing) the system. If there is an existing system that you are
going to replace, then you can install the new system in a parallel mode.
This means that you run both systems at the same time for a period of
time. Each day, the end users check the outputs. Once they feel comfort-
able, turn the old system off.
Many companies run multiple servers with the same system running
on each server. One good way to install a system is to install it on a single
server first, see how it runs, and then install it on another server. This is
called a phased approach .
Documentation
One day, all of the programmers who wrote the original system will leave.
If there is not adequate documentation, then the new programmers will
not understand how to work on the system. I recently worked on a project
(Internet gambling for a foreign country) where the programmer did not have
any documentation at all. The system was written in C++ and ASP. There
were hundreds of programs. It was almost impossible to figure out which
program ran first! So, you really do need to have system documentation.