stime e preventivi in un contesto di sviluppo agile
DESCRIPTION
Slide del seminario su stime e preventivi in un contesto di sviluppo agile, tenuto presso il Distretto delle Tecnologie Digitali, a Udine, il 14/07/2012TRANSCRIPT
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Stime e Preventivi in un contesto di sviluppo agile
DITEDI, Udine - Italia 14-07-2012
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STEFANO MARASPIN
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STEFANO VALLE
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http://www.mvassociati.it/
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http://www.ditedi.it/
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http://friuli.grusp.org/
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http://www.hubme.in/
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IL PROBLEMA
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TALVOLTA RICHIESTE ASSURDE
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FARE STIME É DIFFICILE!
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Cono d’incertezza
11
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Errore umano nella pianificazione
12
Kahneman and Tversky (1979)
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Iterazioni brevi in aiuto
13
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CONOSCETE QUESTA STORIA?
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Prezzo Fisso, Funzionalità Definite
15
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FATTI MALE I CONTI, RITARDO!
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CERCHIAMO DI CORRERE
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LA QUALITÀ VIENE COMPROMESSA
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COSÌ COME IL RISULTATO
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OCCHIO A LAVORARE COSÌ!
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21
Alcuni Dati (ambito PHP in Italia)
http://www.easypolls.net/poll.html?p=4f787165e4b05fc257666170
http://www.easypolls.net/poll.html?p=4f787147e4b05fc25766616f
43%
19%
38% Fixed ScopeT & MOthers
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IL CONTRATTO A CORPO É COMUNE
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NON DOVREBBE ESSERLO
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PRONTI AL CAMBIAMENTO
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NUOVI REQUISITI
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COMPORTAMENTI IMPREVISTI
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I PIANI VANNO BENE
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MA NON DEVONO ESSERE LA META
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BISOGNA TENERE GLI OCCHI APERTI
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INCONTRIAMO PROBLEMI TECNICI
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Le stime richiedono analisi. L’analisi ha un costo.
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PROTOTIPIZZAZIONE RAPIDA
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PREVENTIVO A CORPO
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Time & Material
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RISCHIOSO, SOPRATTUTTO PER CLIENTE
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OK SE C’È FIDUCIA
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T & M con tetto sui costi
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Iterativo
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Agile
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IL CLIENTE VUOLE IL CONTROLLO
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ANCHE DOVE HA POCO SENSO
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IL VAGO FA PAURA
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L’EFFETTO DELLA CERTEZZA
Kahneman and Tversky (1986)
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FIDUCIA
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FIDUCIA
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COME RAGGIUNGERE L’OBIETTIVO
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Rendere il cliente partecipe sulla realtà delle cose
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Dire NO
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VENDITORI, COMMISSIONI
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PROPOSTE POMPOSE
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C’È SCETTICISMO?
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COME CI VEDIAMO
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COME CI VEDONO (ALLA MEGLIO)
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ATTENZIONE ALL’EFFETTO FRAMING
Prospect Theory - Tversky & Kahneman, 1981
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STIME COLLABORATIVE
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STIME RAPIDE, DI MASSIMA
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FATTE IN MODO AGILE
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FORNITI INTERVALLI, NON NUMERI
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CLIENTI SCETTICI
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CI SI INCONTRA
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SI MENZIONA LA QUALITÀ
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LA COMPLESSITÀ E L’INCERTEZZA
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Scegline (al più) due…
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IL MITO DEL MESE UOMO
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IL BUDGET VA DECISO DAL CLIENTE
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LE PRIORITÀ EMERGONO
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INTRODUCIAMO REQUISITI FLESSIBILI
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IL FOCUS DAI REQUISITI
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AL BUDGET
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IL PROCESSO PORTA ALLA COLLABORAZIONE
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SI FORMA UN TEAM CON IL CLIENTE
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FUNZIONA SEMPRE BENE?
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NO. MA ANCHE VOI POTETE DECIDERE
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L’IMPORTANTE È EVITARE…
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Grazie per l’attenzione
Stefano Maraspin @maraspin [email protected]
Stefano Valle @stefanovalle [email protected]
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DOMANDE O DUBBI?
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Libri Interessanti:
81
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Photo Credits • 9.http://www.flickr.com/photos/semvon/6296386748/ • 14. http://www.flickr.com/photos/astragony/6308677010/ • 20.http://www.flickr.com/photos/gtzecosan/3110646027/ • 22.http://www.flickr.com/photos/whyld/6085292098/ • 23.http://www.flickr.com/photos/boegh/5676828543/ • 24.http://www.flickr.com/photos/76099968@N00/2617708117/ • 25.http://www.flickr.com/photos/txberiu/2863269180/ • 26.http://www.flickr.com/photos/imuttoo/3992006628/ • 27.http://www.flickr.com/photos/rcourtie/3819182170/ • 28. http://www.flickr.com/photos/alt-n-anela/6186309723/ • 29.http://www.flickr.com/photos/suckamc/3300440872/ • 30.http://www.flickr.com/photos/anoldent/540975459/ • 31.http://www.flickr.com/photos/studiospecialplace/492842239/ • 32.http://www.flickr.com/photos/pheezy/480374623/ • 36.http://www.flickr.com/photos/mindonfire/5628699674 • 40.http://www.flickr.com/photos/tambako/6803989007/ • 41.http://www.flickr.com/photos/wiertz/5624281846/ • 42.http://www.flickr.com/photos/despedidairene/6088601777/ • 43.http://www.flickr.com/photos/59937401@N07/5930141188/ • 44.http://www.flickr.com/photos/wolfgangfoto/3618946686/ • 45.http://www.flickr.com/photos/mikebaird/6827018401/ • 51.http://www.flickr.com/photos/monjurulhoque/6401220837/
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Photo Credits • 52.http://www.flickr.com/photos/steelight/3294431187/ • 53.http://www.flickr.com/photos/marilynjane/5877663279/ • 55.http://www.flickr.com/photos/benimoto/353411236/ • 56.http://www.flickr.com/photos/vectorportal/4929890104/ • 58.http://www.flickr.com/photos/caveman_92223/3185534518/ • 59.http://www.flickr.com/photos/mister_tee/6112609303/ • 60.http://www.flickr.com/photos/jockew/4817151443/ • 61.http://www.flickr.com/photos/vancouverfilmschool/5331014806 • 62.http://www.flickr.com/photos/aidanwojtas/5557752123/ • 63.http://www.flickr.com/photos/crimfants/2944475383/ • 64.http://www.flickr.com/photos/clagnut/252185030/ • 65.http://www.flickr.com/photos/superzelle/3490611685/ • 66.http://www.flickr.com/photos/ecovirtual/6036941452/ (edited) • 69.http://www.flickr.com/photos/31668204@N06/3601164160 • 70.http://www.flickr.com/photos/like_the_grand_canyon/7011842011/ • 71.http://www.flickr.com/photos/darkdwarf/5533336070/ • 72.http://www.flickr.com/photos/sayamindu/5677281218/ • 73.http://www.flickr.com/photos/mujitra/5721705321/ • 74.http://www.flickr.com/photos/42dreams/956152756/ • 75.http://www.flickr.com/photos/unanoslucror/5051797134/ • 78.http://www.flickr.com/photos/gtzecosan/3110646027/ • other pictures taken by S. Maraspin, courtesy of vectorportal.com or from fotolia archives
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