Figure 1. Architecture of the Cell Cycle Database. The core of the resource is a data warehouse system which collects data from the most relevant bioinformatics resources (Data Sources) and provides links to external resources (Linked Resources). The Cell Cycle Database comprises user-friendly interfaces which show information and, in general, provide the functions of the resource, even relying on third party free software (SW).
Figure 2. Model of Bai et al 2003 . Examples of two objects shown by the user friendly interfaces in the "models section" of the Cell Cycle Database: (A) the ordinary differential equations as they appear on the web interface; (B) plot of time courses of three state variables of the model.