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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.
The relationship between IEC and ISA in the development of the IEC 62443 series is characterized by complementary roles. IEC serves as the global standardization body responsible for publishing and maintaining the IEC 62443 series, while ISA contributes significant technical expertise, industry insight, and foundational drafts through its ISA99 committee.
Purdue Reference Model, “95” provides a model that end users, integrators and vendors can share in integrating applications at key layers in the enterprise. [7] 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 ...
ANSI/ISA-95.00.02-2001, Enterprise-Control System Integration Part 2: Object Model Attributes consists of attributes for every object that is defined in part 1. The objects and attributes of Part 2 can be used for the exchange of information between different systems, but these objects and attributes can also be used as the basis for relational ...
Make a tasty evening meal with these easy pasta recipes, like creamed spinach pasta or penne with ground turkey, all requiring less than 30 minutes of active time.
It is a systematic, consequence-driven approach that is based upon industry standards such as ISA 62443-3-2, ISA TR84.00.09, ISO/IEC 27005:2018, ISO 31000:2009 and NIST Special Publication (SP) 800-39.
A new study from Purdue University found that while wax melts may appear to be healthier than burning a scented candle, the terpenes released result in “significant” indoor particle pollution.
Kathy Ireland took a major gamble in finding her husband.. While on the MovieGuide Awards red carpet, Ireland explained that she "stalked" her husband, Dr. Greg Olsen, before officially meeting.