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PERA Reference model: Decision-making and control hierarchy, 1992. Purdue Enterprise Reference Architecture (PERA), or the Purdue model, is a 1990s reference model for enterprise architecture, developed by Theodore J. Williams and members of the Industry-Purdue University Consortium for Computer Integrated Manufacturing.
Besides artificial systems, an animal's control systems are proposed to be organized as a hierarchy. In perceptual control theory, which postulates that an organism's behavior is a means of controlling its perceptions, the organism's control systems are suggested to be organized in a hierarchical pattern as their perceptions are constructed so.
A hierarchical database model is a data model in which the data is organized into a tree-like structure. The data are stored as records which is a collection of one or more fields . Each field contains a single value, and the collection of fields in a record defines its type .
This model influenced the ISA-95 (International Society of Automation) enterprise-control integration standards, [8] which expanded on the terms of the Purdue Reference Model and describes the interface between enterprise and control systems. [9] [10] Level 0 — The physical process — Defines the physical environment. Represent the physical ...
A central services ICC controls integration across the enterprise. It carries out the same processes as the other models, but in addition usually has its own budget and a charge-back methodology. It also offers more support for development projects, providing management, development resources, data profiling , data quality, and unit testing.
"I can't put into words how I felt − anger, sadness and worry," parent Dustin Reed said about the incident at a Cracker Barrel in Waldorf, Maryland.
Hierarchical model–view–controller (HMVC) is a software architectural pattern, a variation of model–view–controller (MVC) similar to presentation–abstraction–control (PAC), that was published in 2000 in an article [1] in JavaWorld Magazine. The authors were apparently unaware of PAC, which was published 13 years earlier.
Four-time Grand Slam singles winner Naomi Osaka has started 2025 in style, beating Julia Grabher 7-5, 6-3 Wednesday to reach the quarterfinals of the Auckland tennis classic. Osaka overcame a ...