Views, Filters, and Reporting
Same data, many lenses
Views present project data differently without changing it: list, board, calendar, timeline (Gantt-style), and dashboard. Filters narrow what's shown by assignee, due date, field value, completion status, and more. Saved views let teams keep a consistent lens (e.g., "My open tasks this week"). Understand that a filter changes visibility, not the underlying data, and that completed tasks are hidden by default in many views.
Reporting concepts
Dashboards aggregate data into charts - task completion over time, tasks by assignee, tasks by custom field. Charts depend on consistent field values, so reporting quality is a direct function of metadata discipline. Know that a chart reflects the project's tasks (and their fields), and that multi-homed tasks can appear in multiple projects' reports.
Traps in questions
Watch for options that imply a filter deletes or moves tasks (it doesn't). Another trap: assuming a board view and list view can show different tasks - they show the same tasks, just arranged differently, unless a view-specific filter is applied. Questions may also test that timeline view requires start and due dates to render meaningfully; tasks without dates won't plot.
Rule of thumb
Use filters and saved views for audiences (my work, this week, this client) and dashboards for trends and totals. If a chart looks wrong, check field consistency before rebuilding the chart.