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Standing on the Shoulders of Giants v4

On software reuse and software composition. Given as part of the Startup Programming course (UVic)
by

Alexey Zagalsky

on 5 September 2014

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Transcript of Standing on the Shoulders of Giants v4

Standing on the Shoulders of Giants
On software reuse and software composition
v4
Given as part of a
Startup Programming course
Agenda
Software generality and use cases

Mashups

Infrastructural technology
Software Generality
General
Specific
We wish to examine software by its generality:
Identify a general need

The user configures the software

Library / SDK / API
Addresses a specific use-case

The developer configures the software application
Generality is not static
Adding more use cases (features) for a specific application
Generalizing a specific application by creating an API / SDK



Tailoring a general application for a specific use case
Mashups
Bringing together data sources / technologies to create something greater than the sum of its parts
http://www.padmapper.com/

http://www.kayak.com/
Unexpected use cases
Google Technologies as Infrastructural
Examples:




An observation: the specific use case changes the abstraction level of the underlying technology
Pub owner wants to use YouTube
Using Google Maps to plan a trip
Wedding website based on Picasa
Based on slides by Ohad Barzilay
Pandora: streaming music + personal favorites
Yelp: search finding service + readers reviews
General
Specific
Layers in Google Maps:
Camera
+
Phone
What are the Mashups?
Twitter
WWW
Taco Van
Phrasing advice (also word)
Don't Limit Yourselves
http://kangarim.co.il/
Full transcript