Abstract: Computer systems and methods perform a chaos experiment for a target application. The computer system: (i) generates, for the chaos experiment, a simulated traffic stream for a non-production version of the target application; (iii) provides chaos event settings for one or more chaos conditions to the non-production version of the target application; (iv) executes the non-production version of the target application during the chaos experiment, such that the non-production version of the target application, during the chaos experiment, (a) generates responses to the simulated traffic stream while simultaneously (b) being subject to the one or more chaos conditions of the chaos event settings; and (iv) monitors the responses generated by the non-production version of the target application during the chaos testing.

Abstract: A system for printing documents includes a printer; a replaceable cartridge coupled to the printer and providing a consumable to the printer for printing the documents; and a printer driver configured and arrange to be disposed on a device coupled to the printer for assisting in providing the documents to the printer. The system is configured and arranged to print or display advertising to a user in conjunction with the printing of documents.