Proactive, Extractive, Reactive

There are three ways in which an organisation can undertake product line engineering: proactive, extractive, and reactive, says Charles Krueger (Krueger2002).

Proactive

The proactive approach is the more traditional approach to SPLE, where complete domain analysis and variability management is performed in advance of any application engineering. In many small- to medium-sized enterprises the large upfront costs of this approach mean it is not viable (Buhrdorf2004).

Proactive has a bit of a Big Design Up Front feel to it.

Reactive

In contrast, the reactive approach involves creating and updating the product line as and when new members of the family appear. Extensive domain analysis is avoided, and time can be saved.

“think ahead, but not too far ahead”http://www.softwareproductlines.com/successes/salion2.html

Basically a more agile approach to product lines.

Extractive

The extractive approach involves bootstrapping a product line by taking existing products as the base for the core assets. The extractive and reactive approaches can be used in conjunction.

Death Match

“Being excessively proactive proved in several cases to be wasteful due to inaccurate guesses about customer demands. In contrast, by being more reactive, less time is spent implementing specific features and variants [until] they are clearly needed.”http://www.softwareproductlines.com/successes/salion2.html

For me, the agile way to go is extractive and reactive.

References


To the index!