We define better as:

Correct

The internal architecture of the software should follow best practices. Software engineering is still an art, but we know things that work, and things that don't. Do it right.

Secure

Business and personal information is subject to attack on the internet, security of information, and limiting execution to intended code should be built in. SQL injection attacks have been the bane of LAMP development as buffer overflow attacks where to C. The architecture should be such that they and other common security flaws are impossible.

Reliable

Our apps should have fewer bugs, and less down time. Scalability and redundancy should be built in.

Maintainable

While writing the initial version of an application in challenging, it will require far more time and effort spent on maintenance. Programs should be designed to minimize the total cost of ownership.

Fast

No one wants to live with slow programs. They waste precious human time, and limits what you can do with the program. You can use a program that returns results in 10 milliseconds differently then one that returns results in 10 seconds.