Difference between revisions of "Ready to build"
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*High quality {{dor}} leads to high-quality work and speeds up velocity. | *High quality {{dor}} leads to high-quality work and speeds up velocity. | ||
See below for a detailed | See below for a detailed example of a {{dor}}. | ||
Forces: | |||
*Additional detail allow multiple teams to coordinate their work better. | |||
Spend about 10% of the sprint time on grooming the items into {{p|ready to build}} state. Spend this time during the {{p|sprint}}, not during the planning session. Make it you goal to reduce the {{p|sprint planning meeting}} to a mere reconfirmation of the {{pb}} that emerged during the {{p|sprint}}'s grooming sessions. | |||
Only allow {{[|ready to build}} items into the {{p|sprint backlog}}, or risk to be bitten by debate, technical debt, cutting corners, and high pressure during the {{p|sprint}}. | |||
Aim for quality in, quality out. | |||
|therefore=Make sure any item is fully ready to implement before you start working on it. Keep the item's description limited to two pages max. For more complex items, consider composing and {{p|enabling | |therefore=Make sure any item is fully ready to implement before you start working on it. Keep the item's description limited to two pages max. For more complex items, consider composing and {{p|enabling disclosure}}. | ||
}} | }} | ||
Table below is based on Bill Wake's INVEST acronym. | Table below is based on Bill Wake's INVEST acronym. | ||
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|valign="top"|The {{dt}}s have no no known questions regarding the what, why and for whom of the item and can immediately start implementing the item, working on it until it is done, completing it until it meets all criteria that allow it to be pulled into the next station. | |valign="top"|The {{dt}}s have no no known questions regarding the what, why and for whom of the item and can immediately start implementing the item, working on it until it is done, completing it until it meets all criteria that allow it to be pulled into the next station. | ||
To improve actionability, consider providing: | Therefore, a {{pbi}} must be detailed appropriately, e.g. | ||
*as an {{p|enabling disclosure}}; and/or | |||
*a page from the {{p|user manual}}, written by a {{p|mercenary analyst}}; | |||
To further improve actionability, consider providing: | |||
*UI sketches, wireframes, and mock ups; | *UI sketches, wireframes, and mock ups; | ||
*scenarios; | *scenarios; | ||
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|- | |- | ||
|valign="top"|'''understanding''' | |valign="top"|'''understanding''' | ||
|valign="top"|The {{dt}} explains the context, what, why (value creation) and for whom (persona) back to the {{po}}. A popular form for {{us}}s is: As a ''role'' I want to ''action'' so that ''benefit''. Preferably, most stories obey this form. In some cases, you might consider using a {{p|vibrant persona}} for the the ''role''. | |valign="top"|The {{pbi}} details how it fulfills a need, goal or desire of the role or {{p|vibrant persona}}. | ||
The {{dt}}: | |||
*says “Ah, we get it!”; | |||
*explains the context, what, why (value creation) and for whom ({{p|vibrant persona}}) back to the {{po}}; and | |||
*knows their implementation strategy, direction and conceptual design. | |||
A popular form for {{us}}s is: As a ''role'' I want to ''action'' so that ''benefit''. Preferably, most stories obey this form. In some cases, you might consider using a {{p|vibrant persona}} for the the ''role''. | |||
Typically, the ‘To’ part of a story, e.g. “To save a message” in a mail program, is the title of the story. The title of the story is something you can put into the user manual. Therefore, keep the title terse, concise, limited to a single short line. Make sure the title has both an action (verb) and object (noun) in it. | Typically, the ‘To’ part of a story, e.g. “To save a message” in a mail program, is the title of the story. The title of the story is something you can put into the user manual. Therefore, keep the title terse, concise, limited to a single short line. Make sure the title has both an action (verb) and object (noun) in it. | ||
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|- | |- | ||
|valign="top"|'''demonstrable''' | |valign="top"|'''demonstrable''' | ||
|valign="top"|Either the {{dt}} or {{po}} or both can demonstrate the item when implemented. | |valign="top"|Either the {{dt}} or {{po}} or both can demonstrate the item when implemented. A good time for this is the {{p|sprint review meeting}}, but any other time during the {{sprint}} is also good. It gives a chance to immediately get some feedback and fold that in to current development. | ||
Defining and scripting the demonstration helps to: | Defining and scripting the demonstration helps to: |
Revision as of 11:20, 3 November 2011
…scrum, about to pull in product backlog items into the sprint.
✣ ✣ ✣
{{{wish full}}}
- Downstream definition of ready equals the upstream definition of done.
- definition of ready means that any item pulled into the sprint.
- High quality definition of ready leads to high-quality work and speeds up velocity.
See below for a detailed example of a definition of ready.
Forces:
- Additional detail allow multiple teams to coordinate their work better.
Spend about 10% of the sprint time on grooming the items into ready to build state. Spend this time during the sprint, not during the planning session. Make it you goal to reduce the sprint planning meeting to a mere reconfirmation of the product backlog that emerged during the sprint's grooming sessions.
Only allow {{[|ready to build}} items into the sprint backlog, or risk to be bitten by debate, technical debt, cutting corners, and high pressure during the sprint.
Aim for quality in, quality out.
Therefore:
{{{therefore full}}}
✣ ✣ ✣
✣ ✣ ✣
Table below is based on Bill Wake's INVEST acronym.
Second column is the test designed to proof the validity of the first.
Check | Proof |
---|---|
immediately actionable | The development teams have no no known questions regarding the what, why and for whom of the item and can immediately start implementing the item, working on it until it is done, completing it until it meets all criteria that allow it to be pulled into the next station.
Therefore, a product backlog item must be detailed appropriately, e.g.
To further improve actionability, consider providing:
|
independent | Any dependancies are identified and the dependency count is less than three, meaning that the item is relatively independent and does not pull a lot of other items into the sprint. |
understanding | The product backlog item details how it fulfills a need, goal or desire of the role or vibrant persona.
The development team:
Typically, the ‘To’ part of a story, e.g. “To save a message” in a mail program, is the title of the story. The title of the story is something you can put into the user manual. Therefore, keep the title terse, concise, limited to a single short line. Make sure the title has both an action (verb) and object (noun) in it. |
negotiable | The item is clear on the what, yet still leaves room for:
|
valuable | The relative (business) value is clear and written on the item. |
estimable | The item's relative implementation effort expressed in story points is written on the item by the development team, using techniques like planning poker. |
sized appropriately | The item's estimated implementation effort is 8 story points or less. |
testable | Crystal clear acceptance criteria for both the product owner and operations are associated with the item, probably written on the back of the item or documented in an automated test harness.
Acceptance criteria help to:
Popular tools like Cucumber can be used to express these criteria and facilitate automated testing practices. Other useful practices include giving examples of:
|
demonstrable | Either the development team or product owner or both can demonstrate the item when implemented. A good time for this is the sprint review meeting, but any other time during the sprint is also good. It gives a chance to immediately get some feedback and fold that in to current development.
Defining and scripting the demonstration helps to:
A mercenary analyst can help verbalize the item in a concise, coherent and comprehensive way. |