Page 309 - Software and Systems Requirements Engineering in Practice

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ç ç # # H A P T E R ç ç ç $ $ I S T R I B U T E D ç 2 E Q U I R E M E N T S ç % N G I N E E R I N G ç ç
A
4HERE ARE COMPETITIVE SITUATIONS WHERE THE CENTRAL TEAM MAY BE
LOOKING FOR THE hLOWEST COSTv SUPPLIER OR EVALUATIONS OF THE SUPPLIERS
COMPETENCIES &OR DISTRIBUTED DEVELOPMENT WE HAVE FOUND THAT A
REMOTE DEVELOPMENT ORGANIZATION WORKING IN A DOMAIN FOR THE FIRST
TIME HAS A DIFFICULT TIME GENERATING A REALISTIC ESTIMATE OF THE COST AND
SCHEDULE TO DEVELOP THE REQUESTED FUNCTIONALITY 4HUS WE RECOMMEND
THAT THE CENTRAL ORGANIZATION DO THEIR OWN COST ESTIMATES AS THEY WOULD
IF THEY WERE DEVELOPING THE FEATURES USING THEIR EXPERIENCE WITH PAST
SIMILAR PROJECTS 4HESE INTERNAL ESTIMATES CAN BE USED TO hVALIDATEv THE
ESTIMATES RECEIVED FROM THE SUPPLIERS )N SUCH SITUATIONS WE HAVE
OBSERVED THAT THE hLOWEST COSTv SUPPLIER MAY INDEED BE THE hMOST
NAÆVEv SUPPLIER !S DOMAIN EXPERTISE REQUIRES THE LONGEST LEARNING
CURVE FOR A NEW SUPPLIER SELECTIONS OF VENDORS SHOULD BE PRIMARILY
DRIVEN BY DOMAIN EXPERIENCE OR THE ABILITY TO LEARN A NEW OR RELATED
DOMAIN #OST AND SCHEDULE ESTIMATION METHODS CAN BE FOUND IN ;*ONES
= #OST AND SCHEDULE ESTIMATION METHODS FOR GLOBALLY DISTRIBUTED
PROJECTS CAN BE FOUND IN ;3ANGWAN ET AL =
õ 4IPSõFORõ$ISTRIBUTEDõ2EQUIREMENTSõ%NGINEERING
4HE FOLLOWING TIPS ARE SUGGESTED FOR DISTRIBUTED REQUIREMENTS
ENGINEERING
v 0LAN YOUR DISTRIBUTED PROJECTS FOR THE LONG TERM TO BE ABLE TO
REALIZE ANY COST SAVINGS AFTER DOMAIN COMPETENCE IS DEVELOPED
AT THE LOW COST SITES
v 3TAFF YOUR 2% TEAM WITH SOME MEMBERS OF THE REMOTE
DEVELOPMENT TEAMS WHO HAVE TEMPORARILY RELOCATED TO WORK
AT THE CENTRAL SITE 4HESE TEAM MEMBERS WILL BECOME THE
DOMAIN EXPERTS AT THE REMOTE SITES
v "EGIN A NEW PROJECT WITH A NEW REMOTE TEAM USING A PROCESS
LIKE THE EXTENDED WORKBENCH MODEL AND THEN MIGRATE TO
MORE OF A SYSTEM OF SYSTEMS MODEL AS THE DOMAIN AND
TECHNICAL KNOW HOW OF THE REMOTE TEAMS IS DEVELOPED
v -ONITOR YOUR TRAVEL COSTS AS AN EARLY INDICATOR THAT A PROBLEM
MAY BE DEVELOPING ACROSS TWO SITES
v %XCHANGE STAFF AS SHORT OR LONG TERM DELEGATES BETWEEN THE
CENTRAL AND REMOTE SITES
v "RING THE DISTRIBUTED 2%S TOGETHER PERIODICALLY FOR 2%
WORKSHOPS AND REVIEWS AND ENCOURAGE PERSONAL NETWORKING
AMONG THEM TO BUILD A hVIRTUAL 2% TEAM v
v 4O COMBAT JET LAG COLLOCATE THE DISTRIBUTED 2% TEAM FOR THREE
WEEKS AT A TIME AND THEN ALLOW THEM TWO WEEKS AT THEIR