Engineering Final 2026 |
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, Why are iterations usually limited when the waterfall Cost typically constrains iterations of the waterfall model. Waterfall is document-
model is used? driven and rework and approval of documents is costly.
What are the three benefits of incremental development, The cost of implementing requirements changes is reduced.
compared to the waterfall model?
It is easier to get customer feedback on the development work that has been
done.
Early delivery and deployment of useful software to the customer is possible,
even if all of the functionality has not been included.
What are the development stages in integration and Requirements specification, Software discovery/evaluation, Requirements
configuration? refinement, Application system configuration, and Component adaptation and
integration
Requirements specification - initial requirements for the system are proposed.
They don't have to be elaborated in detail but should include brief descriptions of
essential requirements and desirable system features.
Software discovery and evaluation - given an outline of the software
requirements, a search is made for components and systems that provide the
functionality required.
Requirements Refinement - requirements are refined using information about the
reusable components and applications that have been discovered.
Application System Configuration - if an off-the-shelf application system that
meets the requirements is available, it may then be configured for use to create
the new system.
Component adaptation and integration - if there is no off-the-shelf system,
individual reusable components may be modified and new components may be
developed. They are then integrated to create the system.
What are the principal requirements engineering Requirements elicitation and analysis, Requirements specification, and
activities? Requirements validation, and Feasibility Study are the four main activities in the
requirements engineering process.
Elicitation and analysis - is the process of deriving the system requirements
through observation of existing systems, discussions with potential users and
procurers, task analysis, and so on.
Specification - the activity of translating the information gathered during
requirements analysis into a document that defines a set of requirements. Two
types of requirements may be included in this document.
Validation - this activity checks the requirements for realism, consistency, and
completeness. Errors are inevitably discovered, and then must be modified to
correct the issues.
Why is it increasingly irrelevant to distinguish between It should be seen that software engineering or development is an evolutionary
software development and evolution? process where software is continually changed over its lifetime in response to
changing requirements and customer needs.