DCNNQPPGOGPVU FWU ¯ N KPIGUVKQP F CKT
•
HWKVG DWEECNG RGTOCPGPVG RGPFCPV NG UQOOGKN
•
T¾EWTTGPEG FG U[ORVÊOGU F CRP¾G FW UQOOGKN GP EQWTU FG VTCKVGOGPV RCT
•
RTGUUKQP RQUKVKXG
7PG T¾CEVKQP CWZ OCV¾TKCWZ FW OCUSWG QW FGU UCPINGU FG JCTPCKU VTQR UGTT¾GU RGWXGPV
RTQXQSWGT WPG KTTKVCVKQP EWVCP¾G 'P T½ING I¾P¾TCNG N KTTKVCVKQP EWVCP¾G RGWV ¿VTG ¾XKV¾G
GP CLWUVCPV EQTTGEVGOGPV NG OCUSWG GV NGU UCPINGU 5K NG RTQDN½OG RGTUKUVG EQPUWNVG\
XQVTG O¾FGEKP
I
43
NTRODUCTION