Dimension

Definition: What is a Dimension?

In cost and project analysis, a dimension refers to a central structural element or parameter used for the systematic classification and evaluation of data. Dimensions form the basis for organizing costs, budgets, and other key figures in a structured and clear manner. They can be understood as groups of independent variables, while the dependent variables – such as budget, order value, or forecasts – represent the respective values and information.

Significance of Dimensions in Project Controlling

Dimensions are essential for ensuring transparency, traceability, and controllability of large data volumes within construction and real estate projects. They provide the capability to:

• Systematically structure costs and expenses according to various criteria,
• to conduct detailed evaluations and analyses,
• for clear and efficient control of complex projects,
• To establish comparability and transparency across different project phases.

Common Dimensions in Construction and Real Estate Projects

In practice, dimensions are extensively utilized for analysis and control. Typical examples include:

• Cost Groups according to DIN 276: Standardized structuring of construction costs based on recognized standards.
• Standard Scope of Services: Categorization by type and scope of services rendered.
• Entities: Allocation of costs and budgets to participating companies or project entities.
• Building Components: Structured by construction phases or specific building components.
• Contracts and Contractors: Categorization based on concluded contracts or service providers.

Related Terms

• Catalogs
• Cost Groups
• Parameter
• Project structure
• Variable analysis

Dimensions in PROBIS

PROBIS enables the flexible definition and utilization of dimensions for detailed and multi-dimensional project controlling. The software offers:

• Custom Catalogs: Freely configurable dimensions that optimally represent project-specific requirements.
• Multidimensional Analyses: Combination of different dimensions for deeper and more precise analyses.
• Transparent Reports: Presentation of budgets, orders, or forecasts according to defined parameters and structural levels.
• Integration into Controlling Modules: Uniform management of costs and financial data across various structural levels.

Thus, dimensions in PROBIS create a clear, traceable, and structured foundation for complex construction and real estate projects, enhancing efficiency in controlling.

How is 'dimension' defined within alternative contexts?

• Mathematics: Number of basis vectors of a vector space; describes degrees of freedom and spatial extent. The dimension is the number of vectors in a basis that uniquely represent all vectors. Examples: Dimension 1 for a line, 2 for a plane, 3 for three-dimensional space.
• Psychology: Trait axis for modeling individual differences in behavior and personality; synonymous with factors or latent variables. Dimensionality indicates how many trait dimensions are necessary to describe behavioral and personality structures.
• Construction Industry: A structural element for the systematic classification and evaluation of costs, budgets, and project key figures; it enhances transparency, control, and comparability for complex construction projects. Dimensions structure data according to criteria such as cost groups, building components, or contractors.
• Differences: Psychology vs. Project Controlling: Psychology focuses on qualitative characteristics and personality dimensions, while project controlling utilizes dimensions as organizational categories for data structuring.
• Comparison: Construction Industry and Mathematics: The construction industry uses dimensions as abstract categories for data structuring, whereas mathematics defines dimension as a measure of spatial extent and degrees of freedom.
• Physical Dimensions vs. Construction Industry: Physical dimensions measure real quantities such as length, width, height, time, or velocity. The construction industry uses dimensions as structuring categories for organizing project information.

Conclusion: What is a Dimension?

A dimension is a central analytical and structural element used to systematically organize and evaluate costs, budgets, and other project key figures. It forms the basis for transparency, comparability, and precise evaluations. The flexible definition of dimensions in PROBIS offers a powerful tool for the efficient planning and control of complex construction and real estate projects.