What does "poorly written software" mean exactly? * It doesn't work (i.e. lacks critical features) * It works, but with errors (has bugs) * It works, but

What does "poorly written software" mean exactly? * It doesn't work (i.e. lacks critical features) * It works, but with errors (has bugs) * It works, but is slow/inefficient/unoptimised * It works, but the code is difficult to understand * It works, but it's difficult to expand/modify * Several, or all, of the above Each of the above options requires a different strategy to "deal" with it.