Adv. Excel and Visulazation
Practical 19 – Study of Dashboard
1. Objective
The primary objective
of this practical is to familiarize students with the fundamental concepts of
data dashboards. Students will learn to:
·
Define what a data
dashboard is and its primary purpose.
·
Identify the key
characteristics of an effective dashboard.
·
Distinguish between
different types of dashboards (e.g., operational, analytical, strategic).
·
Recognize common
components typically found in dashboards (e.g., KPIs, charts, tables, filters).
·
Understand basic design
principles for creating clear, concise, and impactful dashboards.
·
Explore best practices
for dashboard development, considering audience and data sources.
·
Critically analyze
existing dashboard examples.
2. Introduction
In today’s data-rich
environment, simply collecting data is not enough; it must be presented in a
way that facilitates quick understanding and informed decision-making. Data
dashboards are powerful visual displays that consolidate and present key
metrics, trends, and other data points on a single screen, allowing users to
monitor performance, identify insights, and track progress at a glance. They
act as a "command center" for data, translating complex information
into easily digestible visuals. This practical will delve into the theoretical
aspects of dashboards, preparing you to design and build your own in subsequent
sessions using the advanced Excel skills you’ve acquired (such as PivotTables,
charts, and data validation).
3. Pre-requisites
·
Successful completion
of Practical 3.
·
Familiarity with data
manipulation (Practical 4: Filter) and summarization (Practical 16:
PivotTable).
·
Understanding of data
visualization through charts.
·
Basic understanding of
Excel functions and formulas (Practical 6-9).
4. Software Required
·
Microsoft Excel (for
review of previous practicals and potential sketching).
·
Internet browser (for
research and viewing dashboard examples).
5. Procedure: Conceptual Study and Analysis
This practical is
primarily a theoretical and analytical exercise. You will be studying concepts,
not performing hands-on Excel tasks.
Step 5.1: Defining a
Dashboard and its Purpose
1.
Read
and Understand:
o A data
dashboard is a visual display of all your important data on a
single screen so you can monitor the health of your business, department, or a
specific process. It is often interactive and provides a high-level overview,
allowing users to drill down for more detail.
o Purpose:
Dashboards typically serve to:
§ Monitor:
Track performance against targets (e.g., sales goals, student pass rates).
§ Analyze:
Identify trends, patterns, and root causes of performance changes.
§ Report:
Communicate key information concisely to stakeholders.
§ Inform Decisions:
Provide actionable insights to guide strategies.
Step 5.2:
Characteristics of Effective Dashboards
1.
Identify
Key Traits: An effective dashboard
should generally be:
o Visual:
Heavily reliant on charts, graphs, and visual indicators.
o Concise:
Presents essential information without clutter.
o Customizable:
Adaptable to different user needs or data views.
o Timely:
Displays up-to-date or near real-time data.
o Actionable:
Provides insights that lead to decisions or actions.
o User-friendly:
Easy to navigate and understand for its target audience.
o Interactive:
Often includes filters, slicers, or drill-down capabilities.
Step 5.3: Exploring
Dashboard Types
1.
Categorize
Dashboards:
o Operational Dashboards: Used to monitor real-time operations and daily activities.
Focus on immediate alerts and short-term performance (e.g., website traffic,
production line status).
o Analytical Dashboards: Used to understand why
things are happening. They provide richer data context, allowing users to
explore trends and drill down into details to uncover insights (e.g., market
research, customer behavior analysis).
o Strategic Dashboards: Used by senior management to track long-term goals and Key
Performance Indicators relevant to the organization’s strategic objectives.
Focus on high-level summaries and trends over time (e.g., financial
performance, project progress).
Step 5.4: Common
Dashboard Components
1.
Recognize
Elements: Dashboards are typically
built from several components:
o Key Performance Indicators: Individual metrics that show performance at a glance
(e.g., "Total Students Passed," "Average Percentage").
o Charts/Graphs:
Visual representations of data (e.g., column charts for comparisons, line
charts for trends, pie charts for proportions)..
o Tables:
Detailed data presented in a grid format (often used as supporting data for
charts).
o Filters/Slicers:
Interactive controls that allow users to narrow down the data displayed (e.g.,
filter by Grade, Subject, or Student Name). (Refer to Practical 4 and 16).
o Gauges/Speedometers:
Visual indicators for performance against a target.
o Maps: For
geographical data visualization.
o Text Boxes: For
explanations, notes, or titles.
Step 5.5: Dashboard
Design Principles
1.
Apply
Best Practices:
o Simplicity:
Avoid clutter; only include essential information.
o Consistency: Use
consistent colors, fonts, and layouts.
o Hierarchy:
Arrange information logically, with the most important data at the top or
prominent positions.
o Visual Appeal: Use
appropriate colors and fonts to enhance readability and engagement.
o Interactivity:
Allow users to explore data through filters and drill-downs (covered in
Practical 20).
o Context:
Provide sufficient context for the data (e.g., targets, comparisons to previous
periods).
o Alignment:
Ensure elements are neatly aligned for a professional look.
Step 5.6: Best
Practices for Dashboard Creation
1.
Consider
the "Why" and "Who":
o Define Your Audience: Who is using the dashboard? (e.g., students, teachers,
administrators). Their needs will dictate the content and level of detail.
o Determine the Purpose: What questions should the dashboard answer? What decisions
should it support?
o Choose the Right Data: Select only relevant data that supports the dashboard’s
purpose.
o Select Appropriate Visualizations: Choose charts that best represent the data type and the
message you want to convey.
o Keep it on One Screen: Aim for a "single pane of glass" view if
possible, minimizing scrolling.
o Iterate and Gather Feedback: Dashboards are rarely perfect on the first attempt; seek
feedback and refine.
6. Exercises / Tasks
Your tasks for this
practical will involve research, analysis, and critical thinking.
1.
Dashboard
Research and Categorization:
o Using an internet search engine, find three different examples
of dashboards (e.g., sales dashboard, marketing dashboard, project management
dashboard, academic performance dashboard).
o For each dashboard, categorize it as Operational, Analytical, or Strategic,
providing justification for your choice.
2.
Component
Identification:
o For each of the three dashboards you found, list at least five distinct components
(e.g., KPI, column chart, slicer, data table).
o Describe the purpose of each identified component within
that specific dashboard.
3.
Design
Principle Analysis:
o Choose one of the dashboards you found that you consider to
be well-designed.
o Identify and explain at least three design principles
(e.g., simplicity, hierarchy, consistency, visual appeal) that are effectively
demonstrated in that dashboard.
o Choose one dashboard that you think could be improved.
Suggest at least two
specific improvements based on the design principles discussed
in this practical.
4.
Audience
and Purpose Discussion:
o For each of your three chosen dashboards, infer its likely target audience and its
primary purpose.
o How well does the dashboard cater to its intended audience
and purpose? Explain your reasoning.
5.
Relating
to Marksheet Data:
o Imagine you need to create a dashboard from your marksheet data (from
Practical 3).
o List at least three
KPIs that would be important to display on such a dashboard.
o Suggest two
types of charts you would use, and what insights each chart
would provide from the marksheet data.
7. Assessment / Deliverables
·
Submit a written report
(or a presentation, if preferred by the instructor) summarizing your findings
from the exercises.
·
The report should
include:
o Screenshots or links to the three dashboard examples.
o Your categorization and justification for each.
o Lists and descriptions of components.
o Analysis of design principles and suggested improvements.
o Discussion of audience and purpose.
o Your ideas for a marksheet dashboard.
·
Be prepared to discuss
your findings and analysis in class, demonstrating your understanding of
dashboard concepts.