اشتراک‌ها
برنامه نویس‌ها در سال 2015 چگونه از بانک‌های اطلاعاتی استفاده کرده‌اند؟

According to Evans Data Corporation, there are approximately 19 million developers in the world. 36% of StackOverflow users polled confirmed that they had worked with SQL recently. Combining these two statistics together, there are an estimated 7 million developers working with SQL today. 

برنامه نویس‌ها در سال 2015 چگونه از بانک‌های اطلاعاتی استفاده کرده‌اند؟
اشتراک‌ها
چهار قانون بهتر برای طراحی نرم‌افزار

Kent’s rules, from Extreme Programming Explained are:

  • Runs all the tests
  • Has no duplicated logic. Be wary of hidden duplication like parallel class hierarchies
  • States every intention important to the programmer
  • Has the fewest possible classes and methods

In my experience, these don’t quite serve the needs of software design. My four rules might be that a well-designed system:

  • is well-covered by passing tests.
  • has no abstractions not directly needed by the program.
  • has unambiguous behavior.
  • requires the fewest number of concepts.
چهار قانون بهتر برای طراحی نرم‌افزار