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Better Software – Firenze, Italia - 26-09-2012
STEFANO MARASPIN
http://www.mvassociati.it/
http://friuli.grusp.org/
SITUAZIONI CHE CAMBIANO
SOVRAINGEGNERIZZAZIONE
Utilizzo delle funzionalità software




           Dati del gruppo di studio Standish ad XP2002 – Alghero, Italia



9
REQUISITI CHIARI DALL’INIZIO
UN ESPERIENZA RECENTE…
Il tipico progetto software…




13
Il tipico progetto software…




14
Il tipico progetto software…




15
Il tipico progetto software…




16
Il tipico progetto software…




17
Il tipico progetto software…




18
Non è forse meglio così?




19
ITERAZIONI RAPIDE
Com’è fatta un’iterazione
     1.   Analisi
     2.   Piano
     3.   Azione
     4.   Misura




21
MISURAZIONE CONTINUA
COME FA L’OCCHIO QUANDO GUARDA
Qual’è il problema?
PREVENTIVI, CONTRATTI
La situazione (PHP) in Italia




        http://www.easypolls.net/poll.html?p=4f787165e4b05fc257666170
        http://www.easypolls.net/poll.html?p=4f787147e4b05fc25766616f




26
I PIANI VANNO BENE
NON SONO OBIETTIVI
TENIAMO SEMPRE GLI OCCHI APERTI
CONSIDERIAMO IL CONTESTO
NUOVE POTENZIALITÀ DI BUSINESS
COMPORTAMENTI NON PREVISTI
PROBLEMATICHE TECNICHE
PROTOTIPIZZAZIONE IN AIUTO
Le stime necessitano di analisi. L’analisi ha un costo.
PREVENTIVO A CORPO
STIMARE È DIFFICILE
Cono d’incertezza




38
Planning Fallacy




                   Kahneman and Tversky (1979)


39
Iterazioni brevi




40
STARE PIÙ TRANQUILLI
Il contratto a corpo




42
SE FATTI MALE I CONTI…
CERCHIAMO DI CORRERE
QUALITÀ COMPROMESSA
PESSIMI RISULTATI
Abbiamo alternative?
Time & Material




49
RISCHIO TUTTO SUL CLIENTE
T & M con tetto sui costi




51
Iterativo




52
Agile




53
IL CLIENTE VUOLE CONTROLLO
ANCHE DOVE NON SERVE
L’INCERTO INCUTE TIMORE
RISK AVERSION, CERTAINTY EFFECT




                   Kahneman and Tversky (1986)
FIDUCIA
FIDUCIA
CONSIDERAZIONE DI NOI STESSI
OPINIONE SUGLI SVILUPPATORI
LA NOSTRA ESPERIENZA
Osiamo dire NO
AGENTI, VENDITORI
OFFERTE CHE SEMBRANO LIBRI
PROGETTI SEMPLICI
PROGETTI COMPLESSI
ITERAZIONI CORTE
COME FARE CON LO SCETTICISMO?
O NEI CONTESTI ENTERPRISE?
STIME COLLABORATIVE
ELICITIAMO I REQUISITI. QUELLI VERI
COSA?
COSA?
PERCHÈ?
PENSARE “FUORI DALLA SCATOLA”
STIMIAMO L’EFFORT INTERNAMENTE
IN MODO RAPIDO E APPROSSIMATIVO
CONSIDERIAMO VALORE E OBIETTIVO
PREVEDIAMO INTERVALLI
CLIENTI SCETTICI
CI INCONTRIAMO NUOVAMENTE
FACCIAMO ACCENNO A QUALITÀ
COMPLESSITÀ E INCERTEZZE
BUDGET DECISO DAL CLIENTE
EMERGONO PRIORITÀ
ADATTABILITÀ DEI REQUISITI
ATTENZIONE AL FRAMING




  Prospect Theory - Tversky & Kahneman, 1981
NON È UN PROCESSO RIGIDO
PASSAGGIO DALLE FUNZIONALITÀ
A BUDGET E OBIETTIVI
IL PROCESSO PORTA ALLA COLLABORAZIONE
SI FORMA UN TEAM CON IL CLIENTE
http://www.hubme.in/
Grazie per l’Attenzione




Stefano Maraspin
@maraspin
s.maraspin@mvassociati.it
Referenze Immagini
      •   http://www.flickr.com/photos/tweek/53286527/
      •   http://www.flickr.com/photos/alt-n-anela/6186309723/
      •   http://www.flickr.com/photos/suckamc/3300440872/
      •   http://www.flickr.com/photos/anoldent/540975459/
      •   http://www.flickr.com/photos/king-edward/3758847141/
      •   http://www.flickr.com/photos/tanaka_juuyoh/4434234095
      •   http://www.flickr.com/photos/jenorton/3156903629/
      •   http://www.flickr.com/photos/txberiu/2863269180/
      •   http://www.flickr.com/photos/imuttoo/3992006628/
      •   http://www.flickr.com/photos/studiospecialplace/492842239/
      •   http://www.flickr.com/photos/pheezy/480374623/
      •   http://www.flickr.com/photos/semvon/6296386748/
      •   http://www.flickr.com/photos/tambako/6803989007/
      •   http://www.flickr.com/photos/wiertz/5624281846/
      •   http://www.flickr.com/photos/despedidairene/6088601777/
      •   http://www.flickr.com/photos/59937401@N07/5930141188/
      •   http://www.flickr.com/photos/mikebaird/6827018401/
      •   http://www.flickr.com/photos/astragony/6308677010/
      •   http://www.flickr.com/photos/38191914@N00/3296892344/
      •   http://www.flickr.com/photos/akeg/3947770706/
      •   http://www.flickr.com/photos/istolethetv/3207373011/
      •   http://www.flickr.com/photos/mager/2847253918/
      •   http://www.flickr.com/photos/monjurulhoque/6401220837/
      •




105
Referenze Immagini
      •   http://www.flickr.com/photos/marilynjane/5877663279/
      •   http://www.flickr.com/photos/benimoto/353411236/
      •   http://www.flickr.com/photos/vectorportal/4929890104/
      •   http://www.flickr.com/photos/caveman_92223/3185534518/
      •   http://www.flickr.com/photos/mister_tee/6112609303/
      •   http://www.flickr.com/photos/jockew/4817151443/
      •   http://www.flickr.com/photos/aidanwojtas/5557752123/
      •   http://www.flickr.com/photos/crimfants/2944475383/
      •   http://www.flickr.com/photos/clagnut/252185030/
      •   http://www.flickr.com/photos/superzelle/3490611685/
      •   http://www.flickr.com/photos/31668204@N06/3601164160/
      •   http://www.flickr.com/photos/sayamindu/5677281218/
      •   http://www.flickr.com/photos/mujitra/5721705321/
      •   http://www.flickr.com/photos/bruce_r/3854836367/
      •   http://www.flickr.com/photos/bruce_r/3854836367/
      •   http://www.flickr.com/photos/droidy/714446758/
      •   http://www.flickr.com/photos/lovelihood/4222996858/
      •   http://www.flickr.com/photos/anschieber/6459424151/
      •   http://www.flickr.com/photos/unanoslucror/5051797134/
      •   http://www.flickr.com/photos/dagoaty/4707352284/
      •   http://www.flickr.com/photos/dj-dwayne/5519375553
      •   http://www.flickr.com/photos/nzdave/347532488
      •   http://www.flickr.com/photos/dobs/4128798936/sizes/l/in/photostream/
      •   Le altre foto sono state da me scattate, reperite su vectorportal.com o scaricate dagli archivi fotolia




106

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