Project management is not a monolithic discipline with a single, universal solution. Managing projects requires a nuanced understanding of various methodologies, as the choice of technique can profoundly impact a project's outcome.
Waterfall methodology.
The Waterfall methodology is a traditional, linear approach where a project progresses through a series of sequential phases, such as Requirements, Design, Build, Test, and Deployment. Each phase must be fully completed before the next one can begin, creating a downward flow of progress akin to a waterfall.
This approach is best suited for projects where the requirements are well-understood, stable, and unlikely to change. It excels in environments that demand extensive documentation, upfront planning, and rigorous tracking, such as in large-scale construction, manufacturing, or engineering projects. However, its primary weakness is its inflexibility. Once a phase is complete, making changes is difficult and costly, rendering it ill-suited for projects with high levels of uncertainty or those that require adaptation to feedback during the development process.
Agile methodology with Scrum and Kanban.
Agile is not a single method but an iterative philosophy that prioritizes flexibility, speed, customer feedback, and collaboration. It operates by breaking large, complex projects into smaller, manageable increments of work that are completed in short cycles, allowing for continuous delivery of value and rapid adaptation to change. Two of the most popular Agile frameworks are Scrum and Kanban.
- Scrum: This is a highly structured Agile framework designed for small, collaborative teams working in fixed-length iterations called "sprints," which typically last one to four weeks. At the start of each sprint, the team selects a set of tasks from a prioritized list known as the product backlog. The process is guided by specific roles — the Scrum Master, who facilitates the process and removes impediments, and the Product Owner, who represents the stakeholders and manages the backlog. A cadence of regular meetings, including daily stand-ups, sprint reviews (to demonstrate completed work), and sprint retrospectives (to improve the process), drives continuous improvement and team cohesion.
- Kanban: This is a more flexible Agile method that focuses on visualizing work, limiting the amount of Work in Progress (WIP), and maximizing workflow efficiency. The core of Kanban is the Kanban board, a visual tool with columns representing the stages of a process (e.g., "Backlog," "To Do," "In Progress," "Done"). Tasks, represented as cards, move across the board as they progress. By setting explicit limits on the number of tasks that can be in any one stage at a time (WIP limits), Kanban helps teams identify bottlenecks and maintain a smooth, continuous workflow. It is less prescriptive than Scrum and is exceptionally well-suited for teams focused on continuous delivery, such as IT operations or support teams.
3. Optimize resource management.
A well-defined project plan is only theoretical until it is grounded in the practical realities of time and resources. Advanced resource management allows teams to identify dependencies, account for uncertainty, and optimize the allocation of the finite resources required to execute the plan.
Two methods that can help teams optimize resource management include the critical path method (CPM) and the program evaluation and review technique (PERT). The critical path method involves creating a network diagram that maps all project activities and their dependencies, illustrating which tasks must be completed before others can begin. PERT estimates the time it will take to complete a task by designating the minimum possible time required for a task (“optimistic time”), the maximum possible time required (“pessimistic time”), and the most realistic estimate to complete a task (“most likely time”). These three estimates are then used to calculate an expected duration using the weighted average formula.
Resource allocation, leveling, and smoothing.
Resource allocation planning is typically guided by capacity planning, which involves forecasting resource demand and comparing it against the team's available capacity. Failing to understand actual team capacity — accounting for holidays, other project commitments, and operational work — is a hidden but primary cause of schedule delays.
When resource conflicts and overallocations are identified, project managers have two primary techniques at their disposal:
- Resource leveling: This technique is used when resources are over-committed, and the priority is to maintain a manageable workload. It involves adjusting the project schedule to resolve the conflict, which often means delaying non-critical tasks or even extending the project's overall timeline to ensure resources are not stretched beyond their capacity. The primary goal is to create a realistic schedule, even if it means pushing back the end date.
- Resource smoothing: This technique is employed when the project deadline is fixed and cannot be changed. The project manager adjusts tasks only within their available float, shifting them to "smooth out" the peaks and valleys of resource demand. The critical path remains unchanged, and the project's end date is protected. This method optimizes resource utilization within existing time constraints but offers less flexibility than resource leveling.