7. Advanced Models, Prototyping & RAD, IT Sourcing

Question 1

Prototyping?

Answer 1

Skal bruges når uncetainty er høj. Vi udvikler skidtet istedet for at beskrive det.

Question 2

To typer prototyping?

Answer 2

Throwaway: Man smider prototypen væk og tager erfaringerne med sig i et system.
Evolutionaly: Prototypen bliver det endelige system.

Question 3

Processen bag prototyping:

Answer 3

1) Identify, 2) Develop, 3) Implement and Use, 4) Reuse and Enhance

Question 4

RAD?

Answer 4

Rapid Application Development, evelutionary approach to prototyping

Question 5

Assumption bag RAD?

Answer 5

Umuligt at specificere krav, systemet er sin egen model, design og testing er iterative, systemer er klare men ikke færdige, empowerment af user og developers er nødvendig.

Question 6

JRP/JAD?

Answer 6

Joint application design workshops eller joint requirements planning workshops - bruges oftest i RAD.

Question 7

To typer af RAD:

Answer 7

1) Intensive RAD (intensivt indenfor nogle uger)

2) Phased RAD (JAD i starten og så over flere faser)

Question 8

RAD størrelse, indhold, skills og teambulding? Løb over tid?

Answer 8

4-8, maksimum 10 - developers & users - communication skills - der skal budgetteres med teambuilding - kan ikke løbe over tid = timeboxing

Question 9

Fordele og ulemper ved built vs. buy

Answer 9

PROS: Evner, supplier competitiveness, teknologi
CONS: Competitive advantage