A cartridge for storing and dispensing substances that are in paste form andor capable of flow is formed by at least one tube, in which a closure piston and a dispensing piston adjustable by means of a piston rod are disposed, so as to form a seal, in such a manner that a chamber is formed between the pistons. The method includes receiving a first computation job by a scheduling DPU from the plurality of computation jobs. A method of managing a line used in an operation in a subterranean well includes the steps of: installing the line in the well during the operation; and determining a used life of the line while the line is installed in the well. The subject invention is advantageous in situations where an individual or group, such as a school system or construction company, needs temporary, portable buildings which can easily be constructed and broken down for transportation to a new site.