Today in the rapidly changing market, software development is changing its list of requirement every now and then. As we all know, Agile is one form of software development methodology which mainly focusses on continuous delivery of project with client satisfaction. Agile always accepts the change and works on complete specifications to turn the project into a deliverable product.
In the recent times, Kanban software development methodology is in the limelight for its ability to enable DevOps. Many of the organizations are moving from Scrum to Kanban for better results. So the question arises, which Agile methodology works better?
And Scrum vs Kanban becomes the essential question. The key differences between Kanban and Scrum depend on the Rules of using the methodology and the workflow.
Both Scrum and Kanban have a list of mandated and optional rules for their implementation.
According to the Agile advice list for implementing Scrum, there are around 23 mandatory and 12 optional rules. Here are few examples:
- Teams are functioning in a cross-functional manner
- During sprints, Interruptions are strictly avoided
- Work is always time boxed
- Scrum meetings are held on daily basis
- To measure progress a burndown chart is used
Firstly, the problem arises when organizations follow “Scrum But”- which is basically ignoring some specific set of rules for internal reasons. The next issue arises with timeboxing, which forms the core of Scrum. It allows the developer to define milestones for the stakeholders to evaluate and guide their project.
Now in the case of Kanban, the rules are comparatively less restrictive. The principal rules are-
- Limiting the work in progress
- To Visualize the workflow
Kanban is a flexible and an open methodology that can add rules as needed, borrowed from Scrum depending upon the requirement. In Kanban, the focus is mainly on the flow and not on the timebox. This feature makes Kanban a very appealing choice to use with DevOps.
If we take the case of Scrum, every feature is decided before and it is ensured that it will be completed by the next sprint. After that, the Sprint is locked and work is finished over a couple of week, that is, usual sprint duration. The locking of the sprint is done to make sure that the team is getting enough time to make last minute changes depending on the requirement. There is a feedback session for reviewing the work accomplished. This helps to ensure that the delivered amount of work is approved by the stakeholders and is enough for directing the project as per business requirement.
In the case of Kanban, the priority is to focus on the workflow and not on the time. The limitation is only regarding the size of the queues. Kanban’s main focus is on the productivity and the efficiency of the product. This allows them deliver superior quality work items. In addition to this, concentrating on the workflow will keep things moving. In Kanban, there is an extended feature known as stakeholder participation.
If your team is responsible for enhancing the feature development feedback of the stakeholder, then go for Scrum. But if your team is in charge of maintenance and requires to be more reactive, then you have to consider Kanban. Eventually, the need for every team is different and depending upon the requirements, methodologies need to be decided for the achievement of the goals.