astrogrid oversight committee mrc, london 30 july, 2002

AstroGrid Oversight Committee

MRC, London30 July, 2002

30.07.2002 AstroGrid Oversight Committee

AstroGrid and the Unified Software Development Process

30.07.2002 AstroGrid Oversight Committee

Options

Work Package Traditional Grand design Integrate at end

Unified Process ‘Agile’ process Iterative Multiple releases

30.07.2002 AstroGrid Oversight Committee

Work Package approach: Pros

Institute ‘ownership’Component supportEasier to focus on R&D

30.07.2002 AstroGrid Oversight Committee

Work Package approach: Cons

Development out of sequenceMid-term integration/release difficult User does not see whole product until

end

Development not risk-basedLess knowledge spreadDifficult to change direction Or to see the need for a change

~50% more resources needed

30.07.2002 AstroGrid Oversight Committee

Unified ProcessArchitecture-centricUse-case drivenIterative

30.07.2002 AstroGrid Oversight Committee

Overview

30.07.2002 AstroGrid Oversight Committee

Iterative

~3 month iterationsFull life-cycle each iteration Inception planning Elaboration design Construction code Transition release

Working product release each iteration

30.07.2002 AstroGrid Oversight Committee

Unified Process: Pros

Iterations Multiple releasesKnowledge spreadWhole-project ‘ownership’Easier to change direction Critical for leading-edge project

‘Right’ software built Right

30.07.2002 AstroGrid Oversight Committee

Unified Process: Cons

Where is support?More management effort owing to distributed project

Difficult to set targets up front Targets reviewed each iteration

30.07.2002 AstroGrid Oversight Committee

AstroGrid

AGLI commitment to Unified ProcessConsortium buy-inFocus on delivery of VO

30.07.2002 AstroGrid Oversight Committee

AstroGrid Personnel

Technical Lead focus on delivery

Project Manager focus on team building, R&D,

interactions

Developers flexible team deployment mixed development and R&D work