Software Architecture, Scenario and Patterns
The software engineering projects reveals
that a large number of usability related change
requests are made after its deployment. Fixing
usability problems during the later stages of
development often proves to be costly, since many of
the necessary changes require changes to the system
that cannot be easily accommodated by its software
architectural design. This costs high for the
practitioners and prevents the developers from
finding all the usability requirements, resulting in
systems with less than ideal usability. The successful
development of a usable software system therefore
must include creating a software architecture that
supports the optimal level of usability. Unfortunately,
no architectural design usability assessment
techniques exist. To support software architects in
creating a software architecture that supports
usability, practicing a scenario based assessment
technique that leads to successful application of
pattern specification is undergone. Explicit
evaluation of usability during architectural design
may reduce the risk of building a system that fails to
meet its usability requirements and may prevent high
costs incurring adaptive maintenance activities once
the system has been implemented.
Keywords: use-case, patterns, usability, scenarios,
patterns specifications
Download Full-Text
