combined are larger than the same functionality compiled into one monolithic application, it allows each user to install only the particular add-on features they require, rather than forcing every user to install a much larger monolithic application that includes all of the available features. This results in a "stripped-down" or "out-of-the-box" application that is delivered in a compact package yet is ready for users to add any missing functionality. Open source software may use a similar technique using preprocessor directives to include features at compile time selectively. This is easier to implement and more secure than a plugin system, but has the disadvantage that a user who wants a specific set of features must compile the program from source. Sometimes software becomes bloated because of "creeping featurism" (Zawinski's law of software envelopment). One way to reduce that kind of bloat is described by the Unix philosophy of "writing programs that do one thing and do it well," and breaking what would be a single, complicated piece of software into numerous simpler components which can be chained together using pipes, shell scripts, or other forms of interapplication communication. See also Code bloat Software cruft Feature creep Lightweight software GNU C library Minimalism (computing) Software rot Software suite Technical Debt Wirth's law Zawinski's law of software envelopment References Software quality Bundled products or services