Productive systems

Systems without low-productive sources

Information Production Processes (IPPs) without low-productive sources are studied. A success-breeds-success or preferential attachment mechanism is established in which, from some point in time on, no new sources are created. Such systems are called mature systems. When time increases in mature systems the expected number of sources with a low number of items strictly decreases. An adaptation ...

Is Information Systems Spending Productive? New Evidence and New Results

The "productivity paradox" of information systems (IS) is that despite enormous improvements in the underlying technology, the benefits of IS spending have not been found in aggregate output statistics. One explanation is that IS spending may lead to increases in product quality or variety which tend to be overlooked in aggregate output statistics, even if they increase sales at the firm level....

A New Method for the Hierarchical Modelling of Productive Systems

Industry reorganization and the increase in the automation level of productive processes results in the augmentation of complexity of the interactions among enterprise subsystems related to monitoring and control. Analysis techniques are used to deal with the complexity, design of new productive systems, and improve the performance of existing systems. In this context there is currently a speci...

Design of Reconfigurable and Collaborative Control System for Productive Systems

The design of ACSs (Automation and Control Systems) is specific for each application, such as CNC machine, robot, machine controlled by PLC (Programmable Logic Controller), process controlled by SCADA (Supervisory Control and Data Acquisition) and equipment with FPGAs (Field Programmable Gate Arrays) for customization of their behavior. These technologies have different domains, i.e., the contr...

Productive Activities and Support Systems of Single Mothers