��sada anjost i budu nost programiranja
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Sadašnjost i budućnost programiranja
Ivan Kardum
Ekobit d.o.o.
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Sadržaj
• Kratka povijest vremena
• Trendovi u programiranju
• Razvoj softvera (!= programiranje)
• Trendovi razvoja softvera
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Rani programski jezici
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Classic C
Simula
Pascal
Algol68
BCPL
Fortran
Lisp
COBOL
Algol60
PL\1
1950s: 1960s: 1970s:
Crveno == u komercijalnoj upotrebi
Žuto == u ranoj fazi
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Modern programming languages
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Object Pascal
C++
Java95
C# Ada98
C++98
Java04
C++0x
Python Lisp Smalltalk
Fortran77
Ada
Eiffel Simula67
COBOL89
PHP
C89
Pascal
PERL Visual Basic
COBOL04 Javascript
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Trendovi programskih jezika
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Zašto nastaju novi programski jezici?
• Različita područja • Niti jedan jezik nije najbolji za sve
• Programeri imaju različite sposobnosti • Niti jedan jezik nije najbolji za svakoga
• Mijenjaju se zahtjevi i problemi • Računala se koriste za nove potrebe
• Računala se mijenjaju • Karakteristike hardvera zahtijevaju nove mogućnosti programskih jezika
• Spoznaje o programiranju se mijenjaju • Znamo kako pisati bolji kod
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Što je to bolji programski kod?
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Any fool can write code that a
computer can understand.
Good programmers write code that
humans can understand.
Martin Fowler
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Trendovi u programiranju
1. Skriptni multiplatformiski jezici (JavaScript) 2. Deklarativno programiranje 3. Automatizirano testiranje (unit testing, UI testing, load testing) 4. Decupling (odvajanje odgovornosti) 5. Code review / pair programming 6. „No code is an island” - System „citizenship”. 7. Energija više nije besplatna – vrijeme autonomije 8. Asinkrono programiranje 9. Open source 10. Korištenje Frameworka
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Pogledajmo širu sliku
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ALM – Application Lifecycle Management
• Razvoj softvera je timski sport
• Upravljanje životnim ciklusima aplikacije od početnih ideja do faza održavanja aplikacije u produkciji
• Aktivnosti i alati usmjereni na razvojni proces softvera u cjelini
• Razvoja softvera iz perspektive poslovnog procesa i u skladu sa poslovnom strategijom
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Najvažnija potreba softverskog razvoja:
Povećanje predvidivosti kvalitetne isporuke, na vrijeme i u budžetu.
49% 28% 23% 2000
Propali Uspjeh upitan Uspjeli
Projekti rijetko uspijevaju
Budžet probijen prosječno za: 45%
Proboj rokova prosječno za: 63%
Prosječno isporučeno funkcionalnosti: 67% Standish Group
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Koji su to trendovi razvoja softvera?
Pogledajmo u budućnost
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Pogledajmo u budućnost
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Oblak – cloud computing
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Cloud Computing = Software as a Service + Platform as a Service + Infrastructure as a Service + Data as a Service
Oblak – cloud computing
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Tko/što su korisnici softvera budućnosti?
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• Svaki vlasnik računala, tableta, mobitela
• Pametni televizori
• Automobili
• Kućanski aparati (pećnice, perilice rublja, veša)
• Kućanski sustavi (struja, grijanje, voda, plin)
• Školski udžbenici
Broj korisnika softvera budućnosti?
> 100 000 000 000 000
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"In science, if you know what you are doing, you
should not be doing it. In engineering, if you do not
know what you are doing, you should not be doing it. "
Richard Hamming, The Art of Doing Science and
Engineering