ANSI/ISA-95, or simply ISA-95 as it is more commonly called, is an international standard from the International Society of Automation (International Society of Automation - ISA) for the development of a automated interface between business and control systems. This standard was developed for global manufacturers and intended to be applied across all industries, covering different types of processes, such as batch processes, continuous and repetitive processes.

The objectives of ISA-95 are to provide consistent terminology as a basis for communications between suppliers and manufacturers, offer consistent information models, and present consistent operational models, which are fundamental to clarifying application functionality and how the information should be used.

p>

ISA-95 is made up of 5 parts:

1. ANSI/ISA-95.00.01-2000, Enterprise-Control Systems Integration: 
   Models and Terminology, consists of standard terminology and object models, which can be used to decide what information should be exchanged. These models help define boundaries between enterprise systems and control systems, addressing issues such as which tasks can be performed by which functions and what information should be exchanged between applications.

ISA-95 Models:
- Context;
- Hierarchical Models: Scheduling and Control (Purdue) ; Equipment Hierarchy;
- Data Flow Functional Model: Manufacturing Functions; Data Flows;
- Object Models: Objects; Relationships between Objects; Object Attributes;
- Operational Activity Models: Operational Elements (PO, MO, QO, IO); Operational Data Flow Model (Operational Functions and Operational Flows);

1. ANSI/ISA-95.00.02-2001, Enterprise-Control Systems Integration: Object Model Attributes, consists of attributes for each object defined in part 1. The objects and attributes of Part 2 can be used to exchange information between different systems and also as a basis for relational databases.

3. ANSI/ISA-95.00.03-2005, Enterprise-Control Systems Integration: Manufacturing Operations Management Models, focuses on functions and activities at level 3 (Production/ MONTH). Provides guidelines for describing and comparing production levels from different locations in a standardized way.
4. ISA-95.00.04 Object Models and Attributes:
   "Object models and attributes for Manufacturing Operations Management". This part is still being developed and defines object models that determine what information is exchanged between MES activities (defined in part 3 by ISA-95). The models and attributes in part 4 are the basis for the design and implementation of interface patterns, ensuring flexible collaboration and information exchange between different MES activities.
5. ISA-95.00.05 B2M Transactions:
   "Business to Manufacturing Transactions". Also part 5 of ISA-95 is under development. This technical specification defines operations between office and production automation systems, which can be used together with the object models from parts 1 and 2. The operations connect and organize the production objects and activities defined in the previous parts of the standard. These operations occur at all levels within a business, but the focus of this technical specification is on the interface between enterprise and control systems. Based on the models, the operation is described and the processing of the operation is logically explained.

The 4 Pillars of ISA-95

1 - Production:
The adoption of ANSI/ISA-95 regulations and guidelines in the Production pillar provides more effective integration between business and control systems. This results in significant gains in efficiencyoperational ency, allowing optimized coordination of tasks and resources. Standardizing production operations across different locations, as guided by ISA-95, leads to more consistent and predictable production. Furthermore, standardized modeling and terminology ensure clear and cohesive communication between systems, contributing to minimizing errors and improving overall production performance.

2 - Maintenance:
In the Maintenance pillar, the implementation of ISA-95 guidelines brings notable benefits for the efficient management of assets and resources. The standardization of object models and attributes, especially in part 4 of ISA-95, allows for a consistent exchange of information between Manufacturing Operations Management activities and maintenance operations. This results in more predictive and proactive maintenance, reducing unplanned downtime. Furthermore, clarity in maintenance operations contributes to more effective management of the costs associated with these activities.

3 - Quality:
The application of ISA-95 regulations in the Quality pillar aims to achieve uniformity in quality control processes. Consistency in the definitions of objects, attributes, and operational models, as provided by parts 1, 2, and 3 of ISA-95, facilitates the implementation of standardized quality control practices. This results in more reliable and compliant products and greater responsiveness to quality challenges. Efficient integration between business and control systems allows the collection and analysis of quality data in real time, promoting continuous improvements in production processes.

4 - Inventory:
In the Inventory pillar, the implementation of the ISA-95 guidelines contributes to more efficient inventory management. Consistent use of object models and attributes, as defined in parts 1 and 2 of ISA-95, allows for accurate exchange of information between inventory-related enterprise and control systems. This results in an integrated, real-time view of stock levels, facilitating strategic decision-making. Additionally, the implementation of business transactions for manufacturing, as suggested by part 5 of ISA-95, promotes more effective coordination between office and production activities, optimizing inventory management across the entire supply chain.

Importance of ISA-95 for Industry:

1. Efficient Integration:
   ISA-95 enables more efficient integration between automation systems and business systems, allowing fluid communication and a unified view of operations.
2. Informed Decision Making:
   By facilitating the flow of information between operational and management levels, the standard provides accurate, real-time data, empowering leaders to make informed decisions and strategic.
3. Cost and Time Reduction:
   The standardization proposed by ISA-95 reduces complexity in systems integration, resulting in faster implementations and lower costs.
4. Adaptability and Innovation:
   With a flexible structure, ISA-95 allows organizations to easily adapt to technological changes and innovations, remaining competitive in a constantly evolving environment .
5. Global Compliance:
   By following an internationally recognized standard, companies ensure compliance with global standards, facilitating partnerships and collaborations on an international scale.

In summary, the ISA-95 standard is a fundamental piece of industrial efficiency. Its ability to unite diverse systems and enable harmonious integration between different organizational levels makes it indispensable for companies seeking to optimize their operations.lde;es, promote innovation and stand out in an increasingly competitive market.