Views and sheets are system families, so you need to use project parameters to include additional information or functionality in them. This type of information may be necessary for construction documentation or simply for organizing your project for more-efficient workflow.
Depending on their use, these parameters may need to be shared parameters.
One of the more common parameters for views is the Sub-Discipline parameter. This parameter allows you to assign a subdiscipline value to the properties of any view to establish a secondary level of organization within the Project Browser. This parameter is already established in the default template files provided with Revit MEP 2012.
Much of the information that appears on a sheet border is common to every sheet. If the parameters that hold this information were unique to each sheet, it would be very time-consuming to make certain changes. Project parameters that are applied to the Project Information category can be included in your titleblock so that the value can be changed in one location and globally updated to all sheets.
One example is for total sheet count. Including this information on a sheet as an editable parameter would require creating a shared parameter. A label of this parameter could then be placed within the titleblock family. The shared parameter could then be added as a project parameter applied to the Project Information category, as shown in Figure 6.17.
Notice that the parameter is an Instance Parameter. You cannot create type parameters for the Project Information, Sheet, or View categories.
When the project information is edited, the value will be updated on every sheet in the project. Figure 6.18 shows this example on a titleblock in a sample project.
Combining the power of shared and project parameters can give you the ability to report, tag, or schedule any data within your model or about your project in general. Once you understand how to use parameters effectively, the real work becomes managing them for consistency and accuracy within your projects.