Activity sequencing is an important aspect of project scheduling that influences how tasks are planned, done, and monitored. Because of their differing beliefs, Agile and Waterfall approaches approach activity sequencing very differently. Here are the differences between the two:
- Waterfall Sequences:
- Linear and Predictive - Waterfall divides the project into several segments. Each phase must be completed before the next one begins. Activities are organized in a definite, linear order, with a focus on rigorous advance planning.
- Rigid Timelines - The sequence of activities is set, and alterations to the timeline are usually discouraged once the project begins. This means that modifications during the project are limited, and any unanticipated complications may result in considerable delays.
- Less Flexibility - Because Waterfall is sequential, activities and tasks must follow the original order, which can make it difficult to adapt modifications or input once the project has begun.
- Agile Sequences:
- Iterative and flexible - In Agile, activity sequencing is iterative, with activities constantly reprioritized and changed in response to feedback from each sprint or iteration. There is no precise linear sequence; work is executed in cycles (sprints), and priorities shift over time.
- Continuous Refinement - Activities are scheduled according to the needs of the sprint, and the team is constantly improving tasks, user stories, and objectives. As input is obtained, the focus shifts, and activities may be altered or rearranged as needed.
- Focus on Collaboration - Agile sequencing is more dynamic, allowing for flexibility and change as teams collaborate in shorter cycles, assessing and modifying the approach on a regular basis depending on current needs and priorities.
To summarize, Waterfall activity sequencing is set and linear, whereas Agile sequencing is fluid, iterative, and adaptable to change.
