by Shuli Yu - Presentation given at the 2nd International Workshop on Web APIs and Mashups (at ICSOC2008) on December 1st, 2008 in Sydney, Australia. http://www.icsoc-mashups.org/
21. Kalevi Kilkki (2007): A practical
model for analyzing long tails, First Monday
share of total volume total volume
covered by objects up to
rank x
factor that defines the form
the number of objects
that cover half of the
whole volume
22. pareto rule
20% of the causes result in
of the effects
23. pareto rule?
20% of top APIs have created
of the mashups
35. API Tier 2:
Social/Community,
API Tier 1: Search
Google popular APIs
Many
Maps
API Tier 3:
Feeds, blogging, online
retail, music, video
Less popular APIs
37. keystones
business strategy:
create and (2) share value
(1)
by creating platform
services, tools or technologies
that offer solutions to
others
Iansiti and Levien (2004): Strategy as ecology
38. platform APIs
mapping, search, community
data APIs
news, pictures, videos, music, shopping