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Risk of Change: Networks and Software

Risk of Change: Networks and Software. COMM80: Risk Assessment of Systems Change Unit 12. Objectives of Session Coverage. To appreciate the impact networks and systems have on one another. To be aware of the need for risk assessment of these aspects. The Impact of Network Failure.

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Risk of Change: Networks and Software

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  1. Risk of Change:Networks and Software COMM80: Risk Assessment of Systems Change Unit 12

  2. Objectives of Session Coverage • To appreciate the impact networks and systems have on one another. • To be aware of the need for risk assessment of these aspects.

  3. The Impact of Network Failure • Network Failure • Data Loss

  4. Dealing with the Risk • United we stand, • Divided we fall (fail). • So where is risk assessment of networks covered?

  5. Software Change Affected by the Network: Bandwith Example • Framing Technology! (200 staff). • Based in old Victorian hospital ward, • Invested heavily in network installation. • Call centre takes orders for bespoke picture frames.Use networked software. • Moving to purpose built premises in one year. No more spend on the existing building.

  6. Software Change Affected by the Network: Bandwith Example • Software System Upgrade: • Written and tested in software consultancy’s premises. Worked fine. • At Framing Technology! performance was so poor that it was immediately withdrawn. • Upgraded PCs: didn’t help. • The network bandwidth could not support the requirements of the new software.

  7. Software Change Affected by the Network:Network Security. • Solaplex Windows:10 in factory, 5 in office. • Bought in purchase order system. • Peer to peer network environment. • Software installed on all office PCs: data only on purchase order clerk’s PC. • Implemented in March, operated well.

  8. Software Change Affected by the Network:Network Security. • June: PO clerk away for 3 week break, un-contactable. • Machines were powered down before he went. • The following week data couldn’t be accessed: password unavailable. • Impact: Delay in paying invoices, damaged reputation.

  9. Network Change Affecting Software System • Wearhill University: • Business development unit (BDU) reps work from home and customers’ premises. • Heavily reliant on emails. • Network Project: • High speed internet connections to home, freephone number to ISP. • Access restricted to reps PCs: different addresses from those on campus. • System a success and within budget.

  10. Network Change Affecting Software System • University Network Change: • University “blacklisted” by ISPs: poor security allowed “spamming”. • Access restricted to on campus or dial-in users. • BDU reps couldn’t dial-in or access their e-mail via their ISP. • Network team wouldn’t change setup. • BDU’s “locked out”. • Network change impacted on the BDU’s software and business.

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