Systems+Analysis+and+Design

** Recomm e n d ed Prior Kn o w l ed ge ** Students will have used c o mputers for b as i c w o rd p r o c e ss i ng, dat a bases a nd s p rea d sheet w o rk. They sho u ld have cov e red all prev i ou s s e ctio n s of the s y lla b us a nd the relevant a s p e cts of the pr a c tical syll a bus. This s e ction should b e the eighth secti o n studi e d by the stu d ents. It builds on t h e kn o wl e dge obtain e d from studying all the p r evi o us sectio n s. This s e ction descr i b e s the appr o ach to the so l ution of IT proble m s usi n g syste m s d e sign a nd analys i s. 8.1a D e scribe diff e rent meth o ds of res e arch in g a situation, such a s : - observation, - interviews, - qu e stion n air e s, - examination of existing documentati o n.  D e scribe e ach method a n d discuss situatio n s w h en e a ch met h od is m o re appro p riate than the alter n atives for a given situati o n.    [|http://www.b] [|b] [|c.co.] [|u] [|k/] [|s] [|c] [|h] [|o] [|o] [|ls/g] [|c] [|s] __ ebite s i z e/i c t/sy s tem/1implementingrev2.shtml __ (Walms l ey, et. al., 2004, Ch a pter 1 9 ) (Le a dbett e r, & Wainwri g ht, 2004, 3) 8.1b State the ne e d for est a blishing the in p uts, outputs a nd p rocessi n g in both the exis t ing system a nd the pr o p o s ed system. This is j u st m aki n g s u re s t uden t s und e rst a nd t h at this must b e done n ot that they have to be c a pab l e of doing it. [|http://www.school-]__ re s o u r c es. co. uk/Anal y s i s. h tm __ (Walms l ey, et. al., 2004, Ch a pter 1 9 ) (Le a dbett e r, & Wainwri g ht,2004, 3) 8.1c State the ne e d for r e c o rdi n g informati o n about the current s y stem. Emph a sise that without r e cor d s of the c urrent s y s tem it would be very diffi c ult t o k now what to repla c e it with. [] __ ebite s i z e/i c t/software/ __ (Walms l ey, et. al., 2004, Ch a pter 1 9 ) (Le a dbett e r, & Wainwri g ht,2004, 3)  8.1d State the ne e d for identifying pr o ble m s with the cu r r e nt [|s] [|y] [|stem.]    [|This need m]  u st be s p ecifi e d.   (Walms l ey, et. al., 2004, Ch a pter 1 9 ) (Le a dbett e r, & Wainwri g ht, 2004, 3) 8.1e State the ne e d for identifying suit a ble har d w a re a nd softw a re for developi n g a new system. Having a nalysed the ex i s ting syst e m stud e nts sh o uld be e n c o uraged to b e gin thinki n g of w h at the har d w a re and softw a re req u irem e nts of the new system will be. []__ ebite s i z e/i c t/sy s tem/1implementingrev4.shtml __ (Walms l ey, et. al., 2004, Ch a pter 1 9 ) (Le a dbett e r, & Wainwri g ht, 2004, 3) 8.1f State the ne e d for identifying the user a nd informati o n r e quir e men t s n ec e ssary to resolve the i d entified pr o b l ems. This is j u st t h e und e rst a nd i ng that havi n g examined all the informati o n wh i c h h a s been coll e ct e d about the ex isting syst e m, the us e r and i nformati o n r e quir e men t s of the new syst e m must n o w be identified. (Walms l ey, et. al., 2004, Ch a pter 1 9 ) (Le a dbett e r, & Wainwri g ht,2004, 3) 8.1g State the ne e d for s p ecifying the re q uired har d w a re a nd s o ft w a re. This can be d one at the e n d of the analys i s sect i on or d u ri n g the d e sign stage. [] __ ebite s i z e/i c t/sy s tem/1implementingrev4.shtml __ (Walms l ey, et. al., 2004, Chapter 1 9 ) (Le a dbett e r, & Wainwri g ht, 2004, 3)
 * SECTION 8** Systems Analy s [|is and Design]
 * Co n te x t **
 * Outline **
 * Sub section 8.1 Ana l ysis **