Use Case Diagram

[rarrabi]

Use Case Diagram:

• Handling Files
• Viewing Attributes (Data Tables)
• Viewing Geometries (Interactively)

[rarrabi]

Handling Files:

• The user should be able to open files (the supported formats).
• The user should be able to close files (the currently open files).
• [optional] The application might support multiple open files (tab layout).
• [optional] The welcome screen might display the list of recent files.

Viewing Attributes (Data Tables):

• The user should be able to view the schema of attributes (names and data types).
• The user should be able to view the data (table layout).
• [optional] The attributes screen might support filtering the data (e.g.: =, <, <=, >, >=, contains, regex).
• [optional] The attributes screen might support calculating aggregates (e.g.: avg, max, min).

Viewing Geometries (Interactively):

• The user should be able to view the structure of object / geometry hierarchies (tree layout).
• The user should be able to view the properties of objects / geometries.
• The user should be able to view the objects / geometries interactively (select).
• [optional] The geometry screen might support different projections (coordinate systems).
• [optional] The geometry screen might support manipulating the view interactively (translate / scroll, scale / zoom)
• [optional] The structure screen might support setting the visibility (hidden, visible) of objects / geometries, and the geometry screen should only display visible objects.