10. Agile IT Flashcards
What are the 4 keys in the Manifesto for Agile Software Development? “blabla over blabla”
- Individuals and interactions over processes and tools.
- Working software over comprehensive documentation.
- Customer collaboration over contract negotiation.
- Responding to change over following a plan.
It is still value on the things to the right, but we value the left side more.
12 principles of Agile Software:
- Prio 1 is to satisfy customers
- Welcome change requirements (we learn from it)
- Deliver working software frequently.
- Business and developers work together daily.
- Motivated people and environments.
- Face-to-face interactions.
- Working software is the primary measure of progress.
- Sustainable development and constant pace.
- Put attention to tech excellence and good design, it enhances agility.
- Simplicity - maximize the amount of work not done.
- Self-organizing teams
- Reflect and adjust the work/process/behavior
What do we organize scrum teams around?
Outcomes! Not activities. So there are different people involved in each outcome, not functional silos.
Describe the scrums framework/process in short.
- The product owner communicates with stakeholders and looks at the backlog of what should be done.
- The product backlog goes into a sprint planning. Forecasting work needed to achieve.
- This creates a sprint backlog that goes into the actual sprint.
- The sprint works on their tasks and meet daily. Max time for a sprint is 1 month. The scrum master tells people HOW to work, not what should be done (that’s the product owner’s role)
- Then releasing something, better to release small parts that can be integrated often.
- Sprint review and sprint retrospective - how did it go and what can be better done?
What is a story board?
A board where the team puts up notes on what is the team’s backlog (should be done), what is under development right now, what is under testing process right now and what is finished and accepted.
To get an overview.
How can we scale small scrums to larger IT projects?
We can have teams of agile teams. This is done by merging teams of 5-11 individuals into an Agile Release Train (ART) where different cross-functional groups work together on a project but with different components. Each team has everything they need to define, deliver and operate solutions (no hand-overs needed)
How do communication work in ARTs?
You communicate with your own team (scrum) daily and then there are also larger meetings with the whole ART to see how components fit together and how they can be integrate able.
What three parts go into the Agile Product Delivery?
- Customer Centricity & Design thinking.
- Develop on cadence, Release on demand.
- DevOps and the continuous delivery pipeline.
- Customer Centricity & Design thinking.
Design thinking is the integral to customer centricity. Two main activities of design thinking:
1. Understand the problem - discover (diverge) and define (converge).
2. Design the right solution - develop (diverge), deliver (converge)
And this design deliver should be desirable 8customer centricity), viable (economically) and feasible (technically).
- Develop on cadence, Release on demand.
Developing on cadence helps manage the variability inherent in product development. Decoupling the release of value assures customers can get what they need when they need it. This promotes business agility.
- DevOps and the continuous delivery pipeline.
Continuous delivery.pip represents the workflows, activities and automation needed to go from an idea to on-demand release. The same team work with continuous exploration, integration, deployment and release, not different functions etc.
DevOps (development operations), what five cornerstones are there?
CALMR:
- Culture: culture of shared responsibility of everything along the value stream.
- Automation: remove human intervention from as much of the pipeline as possible to decrease errors.
- Lean Flow: limiting WIP, reducing batch sizes etc. Make it as lean as possible.
- Measurement: for learning and continuous improvements. Must measure to understand the flow.
- Recovery: builds systems that allow fast fixes, going back to a previous state, if it gets too complicated to integrate.
Enterprise Solution Delivery: three main parts:
How to apply Lean-Agile principles and practices in the largest software application developments. Scaling it.
- Lean System and Solutions Engineering.
- Coordinating Trains and Suppliers.
- Continually Evolve Live Systems.
How has the traditional V lifecycle model of building large systems changed into the continuous flow model?
Previously you specified the plan of activities.
Now, you do all in the ART or solution train. You have a flow of activities. So it’s still the same activities but instead in smaller batches that occur continuously throughout the lifecycle.
Programs Increments (PI):
A PI is a timebox during which an ART delivers incremental value in the form of working, tested software and systems. Typically 8-12 weeks long.