The incremental development model divides the product creation process into various builds, allowing for easier management and monitoring. Each build undergoes phases such as requirements, design, realization, and testing, with new functions added in subsequent releases. The model offers benefits like quick software generation and risk reduction, but it also has drawbacks including higher costs and dependency on thorough planning.

1. What Is Incremental
Development
Model?

2. According to incremental model, the
product creation process is divided into
diverse builds. Thus, development cycle
reminds “multistage” model. Each cycle
is divided into smaller stages, and
management and work monitoring
process become easier.

3. Each such module passes the set of certain
phases: requirements, designing, realization,
and testing. The release version of the
software product will be available right on
the first module. The new functions are
added to the release version of the product
with each release. The process will continue
until the system development is fully
completed.

4. The team creates the product gradually, step-
by-step, and at each step a certain type of
checking is executed (integration testing,
system testing, functional testing, unit
checking, acceptance testing, retesting,
and regression testing, and so on).

5. What are the pluses of incremental model?
• Quick generation of the working software.
• The model is rather agile - the changes
during designing the requirements and
scopes of work will not cause heavy
expenses.
• The user reaction may be checked and
achieved at each of the builds.
• Risks reduction. The areas with high risk for
each working cycle may be easily detected
and solved.

6. Among minuses of the development with using
incremental model, the following ones may be
specified:
• the process performance depends on
planning and designing level;
• the full and accurate defining of all system is
required before it will be divided and
incrementally created;
• the total cost of the development process
will be higher, in comparison with the
waterfall model.

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