Bar Chart

A visual timeline used to present schedule information. Commonly, tasks or WBS elements appear in a list on the left, a time scale runs across the top, and each activity is shown as a horizontal bar placed according to its planned start and finish dates.

Key Points

  • Displays activities and durations on a calendar-like time scale using horizontal bars.
  • Activities or WBS components are listed on the left; dates span across the top.
  • Easy for stakeholders to read, but shows limited logic relationships compared to network diagrams.
  • Useful for communicating the plan and tracking progress against a baseline.

Example

A facilities upgrade project lists tasks such as "Design," "Procurement," "Installation," and "Testing" down the left side. The time axis shows months across the top. Each task has a bar drawn from its planned start to finish dates. During execution, progress shading on each bar indicates percentage complete.

PMP Example Question

Which tool best shows project activities listed on the left with a calendar across the top and each activity represented by a horizontal duration bar?

  1. Bar chart
  2. Network diagram
  3. Resource histogram
  4. Scatter diagram

Correct Answer: A — Bar chart

Explanation: A bar chart (Gantt chart) plots activities as horizontal bars against a time scale, with activities on the left and dates across the top.

ICS/OT Cybersecurity Fundamentals — Security Built for Industrial Systems

Industrial control systems cannot be secured like ordinary IT. A forced reboot, aggressive scan, or incompatible patch can interrupt production and create real safety consequences. Effective OT security begins with understanding the systems, constraints, and risks unique to industrial environments.

This course gives IT professionals, engineers, operators, and security practitioners a practical foundation in ICS threats, zone and conduit design, risk assessment, passive asset visibility, and vendor evaluation. You will learn how IEC 62443, NIST CSF, and MITRE ATT&CK for ICS apply where availability and safety come first.

Eight reconstructed incidents—including Stuxnet, Triton, Ukraine 2015, Colonial Pipeline, and PIPEDREAM—show how attackers move through OT environments, what they target, and which defenses could have changed the outcome.

Watch the course preview, then build the vocabulary, frameworks, and judgment needed to take credible first steps in ICS/OT cybersecurity.

Explore the Course


ICS/OT Cybersecurity Fundamentals course preview

Lead with clarity, influence, and outcomes.

HK School of Management offers a practical Leadership for Project Managers course for real projects, tight deadlines, and cross-functional teams. Learn to set direction, align stakeholders, and drive commitment without relying on title. Practical skills, tools, and guidance you can apply right away. Covered by Udemy's 30-day refund policy.

Learn More