You don't say "I'm going to build an extra robust tool, let's start <?php class ExtraRobustTool { ... }" To build an extra robust tool you need a lot of planni

You don't say "I'm going to build an extra robust tool, let's start <?php class ExtraRobustTool { ... }" To build an extra robust tool you need a lot of planning, and a lot of factors are considered during the planning.