Project scheduling is a balancing act between time, resources, and scope. Every project manager eventually faces the big question:

Should I plan based on available resources or the required timeline?

This is where Resource-Constrained Scheduling (RCS) and Time-Constrained Scheduling (TCS) come into play.

Both are legitimate scheduling methodologies used in modern project management—but they serve completely different strategic purposes. Knowing which one to apply can make the difference between on-time delivery and project chaos.

This comprehensive guide covers everything you need to know about both scheduling types—from definitions and techniques to real-world examples, pros and cons, mathematical foundations, decision models, and how tools like Orangescrum implement them.

What Is Resource-Constrained Scheduling? (RCS)

Resource-constrained scheduling is used when resources are the main limiting factor in a project. The timeline is allowed to shift based on resource availability.

Resource-Constrained Scheduling (RCS) is a project scheduling method where resource availability dictates the schedule, and the project timeline is flexible.

Read the full blog