Definition:
An iterative, incremental process for developing any product or managing any work. It produces a potentially shippable set of functionality at the end of every iteration.
Attributes of SCRUM process:
• An agile process to manage and control development work.
• A wrapper for existing engineering practices.
• A team-based approach to iteratively, incrementally develop systems and products when requirements are rapidly changing
• A process that controls the chaos of conflicting interests and needs.
• A way to improve communications and maximize co-operation.
SCRUM Process Diagram:
Detailed SCRUM Process Diagram:
Terminology:•
Product Owner
o This is the person who makes decisions about features that will be added to the project
o This person may be a customer, but can be a person in the company who acts as the customer’s representative
o This person will be the ultimate judge of a projects successful completion
SCRUM Master
o Equivalent to a project manager for a small project or a team lead on a larger project, with a size of 4 to 8 people.
o The scrum master ensures that the rules of scrum are followed
By the development team
By management and customers
Product Backlog
o The product backlog is generally equivalent to the requirements document in traditional projects
o Features are added to the product backlog and include the following information
ID
Priority
• Multiple priority scales can be used
o 1-5
o Showstopper, Major, Minor, Trivial
Description
Preliminary Hour Estimate
o It can also contain
Customer/Contract information
Requirement Owner
Anticipated Version
Assigned Development Team
Assigned QA Team
Feature Status
o Features are prioritized by the Product Owner
SPRINT
• A Sprint is a single development cycle
• Developers work as a team during a sprint to complete tasks that are defined at the beginning of the sprint
• Typical duration of 4 weeks, but is flexible
• The output of the sprint should be completed software modules that provide demonstrable capability
• The entire team is responsible for all of the tasks on the sprint
o If someone finishes their tasks early, they help others complete the remaining tasks
• The end date of the sprint is fixed. Tasks must get dropped from a sprint rather than move the end date
• Sprint Planning Meeting:
• Occurs at the beginning of sprint
• Features from the product backlog are broken down into smaller tasks and assigned to developers
• Estimates refined by developers based on implementation responsibility
• Attended by development team, product owner and the scrum master
The scrum master runs the meeting
Sprint Backlog
• The Sprint Backlog tracks the progress of an individual sprint
• All of the tasks that were defined during the sprint planning meeting are listed on the sprint backlog
• The estimates for tasks are stored and updated on this document
• Daily SCRUM:
• Daily progress meeting
o Attended by the development team
o Run by the scrum master
• Three questions answered by each team member
o What did you do yesterday?
o What is keeping you from accomplishing your tasks?
o What do you plan on doing today?
• Estimates are updated on the sprint backlog
o Number of hours worked are logged
o Hours remaining are “re-estimated”
• Information gathered at these meetings can be used to track progress of tasks
SCRUM Rules
• The dates are fixed
o If tasks are not going to be finished, they are dropped from this iteration
o Priorities are VERY important
• No Feature Creep
o Features may not be added to a sprint by the product owner after the Sprint Planning Meeting
o Exception – the burn down chart shows that all tasks will be completed early and the team agrees to take on the next task from the product backlog
o Sprints can be cancelled and restarted by the product owner if there is a high priority need
• All tasks must be TESTED to be complete
o Developers must COMPLETE the tasks
o The next sprint will start immediately after this one ends, so there will not be time for revisiting this task
Challenges
o It takes practice by the entire team
o People tend to over-commit during the Sprint Planning Meeting
o Proper estimates must include time for:
Design
Development
Reviews (Design and Code)
Unit Test Creation
Testing
Integration
4 comments:
I've recently found a very interesting article on Scrum in marketing at www.projectmanagement2.com. I think it's a great tendency to apply Scrum in different spheres.
Thanks Sonica!!
Heya¡my very first comment on your site. ,I have been reading your blog for a while and thought I would completely pop in and drop a friendly note. . It is great stuff indeed. I also wanted to ask..is there a way to subscribe to your site via email?
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