DCE Replacement Strategies

112 DCE Replacement Strategies

7.1 How to read the example scenarios

The example scenarios that are described in the following chapters of this

section are all structured in the same manner:

 First, an introduction is given that explains the environment of the scenario

and the strategy that is chosen for removing the DCE dependencies.

 A sample application program that depends on DCE services is explained,

followed by an explanation of the way the DCE dependencies are removed in

the revised application.

 The replacement roadmap is explained, including some brief steps to install

and configure replacement products.

 As a result of the replacement, the application program using the replacement

technologies is then explained.

 The scenario is summarized with a discussion that also elaborates on

additional considerations and possible alternatives.

For the description of the code examples, only excerpts or fragments of the code

are being shown and explained. The full program code listings are in the

appendix of this book and can be downloaded. (See Appendix E, “Additional

material” on page 417 for instructions.)

7.2 Common assumptions in the sample scenarios

The example applications used in the following chapters of this book are used for

the purpose of explaining the use of the chosen replacement technologies. They

do not represent real applications, as the application logic is considered

irrelevant for the purpose of this book.

Because actual system and development environments vary to a large extent,

only information that is assumed important in regard to the environment used for

writing this book is provided.

7.3 Simplifications in the sample scenarios

The purpose of the replacement scenarios in this book is to demonstrate the

technologies for the replacement of DCE dependencies. The examples are kept

simple, and they are not meant to serve as schoolbook examples for

production-ready applications.