Defining processes, will allow software vendors to create fine-tuned solutions to support construction-specific processes, whilst taking into consideration the necessity of process integration. Defining necessary IT-platforms will fixate the system architecture of our industry, enabling software solutions to become more interoperable and better at integrating data and processes.

5Di Modeller

The main purpose of the 5Di modeller (not a person but the software tool) is to accommodate an environment wherein a well-structured 3D-Modell can be created. The modeller will be the key tool for translating existing planning (e.g. 2D or 3D) into 3D-Modell for follow-up processes. As existing planning procedures do not fulfil the market demands in quality and accuracy, the foremost requirement of the modeller will be to enable the fast and reliable creation of a model.

The demands for a 3D-model-based planning and construction tool are:

- The tool offers an intuitive and easy-to-learn user interface, which enables a detailed, comprehensive and fast generation of any kind of three-dimensional model, including all necessary semantic information.

- The tool supports a construction-element-oriented structure of the three-dimensional model and creates a so-called GUID (Globally Unique Identifier) in order to allow for the explicit identification of information units through the entire production process (construction element objects).

- The data model upon which the tool is based furthermore allows for any kind of higher ranking construction element grouping (including dynamic regrouping and splitting of objects and groups) (also using a GUID) and facilitates presentation in different levels of detail.

- The tool offers parameters both for a simple definition and adaptation of construction elements as well as for the description of interdependencies of the construction elements.

- The tool offers the possibility of creating different views on all product data and furthermore allows for geometrical information and data being linked bi-directionally to associated databases.

- Access to the properties and parameters of the construction elements should not only be possible using the construction and modelling-tool itself but also through any associated database.

- The tool incorporates a generic catalogue of building and construction components for products of the supplier industries and for company-specific solutions which allows the user a quick start-up and early productivity.

- The tool offers new powerful interfaces for sharing three-dimensional building models and they fulfil the following minimum requirements:

- Sharing interface (checkout) with a filter for certain model parts (for example construction element objects per floor or per construction stage), different views for different applications (for example information for calculation and billing) or by parameter types (for example all doors of a certain fire protection class) [=partial export].

- Sharing interface (check in) with update, combination, merging, versioning, validation of certain model parts (for example construction element objects per floor or per construction stage), different views for different applications (for example information for calculation and billing) or by parameter types (for example all doors of a certain fire protection class) [=update import].

- The tool has 2D interfaces for handing over boundary conditions (edges) for the detailed plans (final plan, shop drawings) with construction specific demands such as plans for architecture, formwork, reinforcement, pre-cast elements, steelwork, finishing and services. The reference to the original construction element is preserved through the GUID.

- The tool must completely support open (and/or) certified industry standards. This applies to standards within the construction industry as well as other industrial sectors.

- It should be aspired that the data format used allows for archiving (long-time accessible graphic information covering legal requirements).