Activity Nodes Group

Activity refers to a group of nodes that constitute a coherent set of actions related to a specific project. In the Extended Matrix, activities are always represented as node groups, which cluster related nodes together for better organization and visualization.

These activity node groups are characterized by specific visual attributes to make them easily identifiable within the matrix. For instance, in the yED palette EM 1.5, activity node groups are displayed with a text background color of #ccffff.

Examples of activities include:

  • Construction of foundations

  • Erection of columns

  • Carving of capitals

  • Installation of architraves

By grouping related actions into node groups, we can better interpret the sequence and relationships between different stratigraphic units within an archaeological site.

_images/activity_example.png

Fig. 17 Example of an activity node group in the Extended Matrix, showing nodes grouped together with a text background color of #ccffff

Understanding Activity Node Groups

In the Extended Matrix, activities are represented as node groups that encapsulate multiple stratigraphic units sharing a common purpose or function. This grouping method allows for:

  • Simplification of Complex Relationships: By grouping related nodes into an activity node group, the matrix becomes more readable and manageable.

  • Enhanced Interpretative Clarity: Activity node groups provide context that helps in understanding the functional aspects of the stratigraphic units.

  • Visual Consistency: Using specific visual cues, such as the background color #ccffff, activity node groups are easily identifiable within the matrix.

Note

The activity group typically includes both stratigraphic node and paradata ones.

Implementing Activity Node Groups in the Extended Matrix

When modeling activities:

  1. Create an Activity Node Group: Use the node grouping feature to encapsulate all related stratigraphic units within a single activity group.

  2. Connect Related Units: Include all relevant stratigraphic units in the activity node group to represent the complete scope of the activity.

  3. Assign Temporal Data and Descriptions: Define the time frame during which the activity took place and provide descriptive information about the activity.

Example of an Activity Node Group

Consider the construction of a Roman temple portico:

  • Activity Node Group: “Construction of Temple Portico” (displayed with a text background color of #ccffff)

    • Includes Stratigraphic Units: - Foundation trenches and fill materials - Column bases, shafts, and capitals - Architraves placed atop the columns - Decorative elements like friezes and inscriptions

By grouping these units into an activity node group, we create a clear and organized representation of this specific building phase within the Extended Matrix.

Benefits of Activity Node Groups

  • Improved Data Organization: Activity node groups help organize stratigraphic data into meaningful clusters, making it easier to manage and navigate the matrix.

  • Enhanced Analytical Capabilities: Facilitates querying and analyzing the dataset based on activities, enabling more focused research.

  • Better Visualization: The use of consistent visual cues, such as the background color #ccffff, enhances the readability and interpretability of the Extended Matrix.