Your knowledge assets - assets to some extent price reductions over time. Especially for this type of technology is more obvious technology, today you will be a java, but perhaps tomorrow with the hottest language is python, no one can predict in advance what the trend is, and learn it well in advance. So we will continue to enrich their knowledge assets, so no matter how change, have the ability to adapt to this change, will not be eliminated. Learning is like rowing upstream. We should need to keep learning to improve themselves.
AC - not only to be a good programmer and computer communication, but also to the user, peer exchange, to communicate with people. Only mutual exchange, in order to more clearly what the user really needs more clearly which areas for improvement they have. AC also need the opportunity to go to communicate at the right time, to distinguish priorities. The exchange process, it is necessary to be a good listener, you have to leave out their point of view, if you want to organize the exchange of documents, as much as possible to make your documents look beautiful and clean, and as the code.