Would anyone please clarify and compare the following concepts,
all related to building a features list and to feature planning:
- subject area
- business activity
- business step
- feature set
- development plan
FDD says the following about 'Building a Features List':
A team usually comprising just the Lead Developers from the (Process) Develop an Overall Domain Model is formed to functionally decompose the domain into Subject Areas, the Business Activities within them and the Steps within each Business Activity, thus forming the categorised features list.
So our 'features list' consists of a hierachy of 'subject area' - 'business activity' - 'step'.
Which of these three levels are called 'features'? (business activity or step)
Moving to Plan By Feature, 'feature sets' are defined. Each feature set includes a number of features.
To understand this process, I need to know if a feature is a business activity or a step.
I suppose a feature set can contain a subset of multiple subject areas or multiple business activities?
Does a feature set contain business activities including all steps involved, or can a feature set include only part of the features necessary to complete a business activity?
Are there guidelines to decide whether a feature is a 'subject area', a 'business activity' or a 'step'?
How is the 'development plan' structured?
Is it organized by 'subject area', by 'feature set', by 'business activity',....?
Thanks a lot,