A requirements analyses were performed to identify the specific needs within the project’s context. The instrument chosen was interviews of experts and users (see [7]). A requirements analysis always starts with clarifying the relevant object to be presented in VR. The second step is to find out the required way of computing, viewing and manipulating this data. Finally a hardware setting is designed to fulfill the derived requirements best possibly [8]. Among other things it was requested, which objects, resources and parameters were important and relevant and should be visualized in which context. At the same time, which interaction, if at all, with the visualized data should be reasonable conducted. Also necessary action and animations, like alarms, were identified. After the completion and evaluation of this requirements analysis and clarifying the relevant objects to be presented in VR (see [7], [9]) a requirements specification document was the result. Based on this document a technical specification document was worked out and a software architecture named “Augmented Reality for Construction Control” (AR4CC) has been developed to meet with the requirements relating to it. It is possible to create huge multi marker scenes and interact with them. Value was attached to capsulate all augmented reality functionality to easily add new objects bases on inheritance structures, which can act free from the ar problems. Knowledge within the field of augmented reality is not necessary to add new objects or to set up “new” construction sites.