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February 12, 2012
© 2008, William Fisher. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Altai Test
William Fisher February 12, 2012
February 12, 2012
© 2008, William Fisher. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Altai Test (1) Abstraction (2) Filtration
Unprotected Material includes: (a) Elements dictated by efficiency (b) Elements dictated by external factors
(i) mechanical specifications of the computer (ii) compatibility requirements of other programs (iii) computer manufacturers' design standards (iv) demands of the industry being served (v) widely accepted programming practices
(c) Elements taken from public domain (3) Comparison
Nichols “Pattern” Test
Nichols “Pattern” Test
Nichols “Pattern” Test
Nichols “Pattern” Test
Nichols “Pattern” Test
Nichols “Pattern” Test
Nichols “Pattern” Test
Nichols “Pattern” Test Id
ea
Expr
essi
on
Idea
Ex
pres
sion
Filtration
Idea
Ex
pres
sion
Elements dictated by efficiency
Filtration
Idea
Ex
pres
sion
Elements dictated by efficiency
Filtration
Idea
Ex
pres
sion
Elements dictated by external factors
Filtration
Idea
Ex
pres
sion
Elements dictated by external factors
(i) mechanical specifications of the computer (ii) compatibility requirements of other programs (iii) computer manufacturers' design standards (iv) demands of the industry being served (v) widely accepted programming practices
Idea
Ex
pres
sion
Elements dictated by external factors
(i) mechanical specifications of the computer (ii) compatibility requirements of other programs (iii) computer manufacturers' design standards (iv) demands of the industry being served (v) widely accepted programming practices
Idea
Ex
pres
sion
Elements dictated by external factors
(i) mechanical specifications of the computer (ii) compatibility requirements of other programs (iii) computer manufacturers' design standards (iv) demands of the industry being served (v) widely accepted programming practices
Idea
Ex
pres
sion
Elements taken from public domain
Filtration
Idea
Ex
pres
sion
Elements taken from public domain
Filtration
Comparison
Protected Parts of Plaintiff’s program
Comparison
Protected Parts of Plaintiff’s program
Elements of defendant’s program
Comparison
Protected Parts of Plaintiff’s program
Elements of defendant’s program