EXADIOS SOFTWARE DEVELOPMENT

Details

ABN

Encryption and Signature Keys

There are two separate keys here. The first is a key generated by PGP and is RSA/IDEA. The second has been generated by Gnupg and is EIGamal/DSA Both are current.

The first key (PGP) is associated with the email address of pfb@exadios.com pfb@users.sourceforge.net. This key has been generated on 2000/03/24 and revokes my previous key of 1996/11/15. This key's fingerprint is 8AB3 0AAA 808A F26C 72C4 44E2 71CA 2D5A. To view the key click here - left button for view and right for download.

The second (Gnupg) is associated with email the address of pfb@exadios.com. This key has been generated on 2003/10/15. This key's fingerprint is 4F9C 69F6 1369 9B9C 7387 FDE7 9BD9 0BBE D6D1 9E47. To view the key click here - left button for view and right for download.

Philosophy

• Use of Open Source software components.
• Software re-use. The advantage of re-use is that there is historical knowledge of existing software components. This means that the reliability and capability of the components are well understood before their use. This results in shorter completion times and lower cost.
• Emphasis on design.
• KISS (Keep It Simple Stupid). This applies to requirements, design and programming. Complexity breeds unreliability. It also makes it hard for others, at a later date, to understand what is going on.
• Concise documentation. Many systems have a life longer than originally intended. During that life they may be extended or modified in some other way. This requires good technical documentation so that workers can pick up the project as soon as possible.
• It is not possible to test software completely. A typical software system has way too many possible states. For this reason it is important to move as much testing as possible as far down as possible. The first line of testing is at the "unit" (e.g. C++ class, C module) level. The next level of testing is at the subsystem level. At both these levels it is important that test sets be created to validate the components. In addition there may be some critical points at integration which may require special testing. It is important that the test sets be retained so that they may be used during the life of the system.