Software change - ESSeRE
Software change - ESSeRE
Software change - ESSeRE
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Architectural evolution<br />
●<br />
●<br />
There is a need to convert many legacy systems<br />
from a centralised architecture to a client-server<br />
architecture<br />
Change drivers<br />
• Hardware costs. Servers are cheaper than mainframes<br />
• User interface expectations. Users expect graphical user<br />
interfaces<br />
• Distributed access to systems. Users wish to access the<br />
system from different, geographically separated,<br />
computers<br />
©Ian Sommerville 2004 <strong>Software</strong> Engineering, 7th edition. Chapter 21 Slide 33
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