CIS/2 (CIMSteel Integration Standards)

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Introduction

CIS/2 stands for CIMSteel Integration Standards (Computer Integrated Manufacturing Building Steel Structure Standards), which is a file format used for information exchange and storage in the field of building steel structures. It aims to create a seamless and integrated information flow for building steel structure project information, covering everything from nuts and bolts to materials, loads, frames and components. This format can represent the structure as an analysis, design or manufacturing (detailed) model, and is widely used in the design, analysis, procurement, manufacturing planning, automated manufacturing and installation of steel structures in the construction industry.

Structural Features

Based on EXPRESS language: CIS/2 uses EXPRESS language to define data models, and uses object-oriented concepts to describe information, achieving independence between data structure and programming language.
Modular entity definition: The data model covers core entities such as geometry, attributes, and relationships, and supports accurate description of components such as beams, columns, and nodes in steel structure projects.
Standardized data exchange: Through a unified data format, CIS/2 eliminates compatibility issues between different software and significantly improves collaboration efficiency.

Pros

**Support full life cycle data management: **CIS/2 format covers the entire process of steel structure data from design, manufacturing to construction, and can achieve efficient transmission and sharing of information at different stages.
**Cross-platform/cross-software data exchange: **This format supports data interoperability between mainstream steel structure design software (such as Tekla, Advance Steel), and can also be integrated with manufacturing execution systems, construction management software, etc. to improve collaboration efficiency.
Clear and systematic data structure: CIS/2 format is highly integrated, supports multiple data files and databases, does not need to process data unrelated to the structure, and also includes reference models to facilitate information transmission and resource sharing between sub-models.

Cons

High learning cost: The CIS/2 format involves complex entity definitions, data types, and functions, and professionals need to invest time to learn its standards and operating methods.
**Limited application scope: **The CIS/2 format is mainly used in the steel structure industry, and its popularity and applicability in other construction fields or general scenarios are limited.

Application Scenario

The CIS/2 format is designed specifically for the steel structure industry and is suitable for full life cycle data management from design (BIM model integration, parametric design) to manufacturing (CNC machining, material optimization) to construction (installation guidance, progress management). It supports data interoperability between mainstream design software (such as Tekla, Advance Steel), and can be integrated with manufacturing execution systems, construction management software, etc., to achieve efficient cross-platform/cross-software collaboration and information sharing.

Example

Export CIS/2 file.

Translated into CIS/2 format.