| Application
Management |
| Methodology |
| Software maintenance is one
of the activities in software engineering, and is the process
of enhancing and optimizing deployed software (software release),
as well as remedying defects. It is post-delivery activity and
the support will be provided for the period as agreed in the
contract, from the date of sign-off. The sign-off happens when
all the functionalities as agreed in the requirements document
are implemented for the application. A support team will be
maintained and technical support will be provided as needed.
This support will be on an on-call/mail basis. Following
are the wide range of activities performed as part of OFS
maintenance process;
- Identify the system for maintenance: This means identifying
the system along with its version
- Define scope for maintenance: Responsiveness to the client
is the primary consideration in determining the scope of
system maintenance. Scope (both in and out) of the maintenance
will be tailored to satisfy operational response requirements
of client. During the agreement period, corrections and
enhancements may be required. Corrective maintenance will
accommodate latent defects as reported by the client. Perfective
and preventive maintenance will also take place depending
upon the requirements of the client.
- Specify support period: The period for maintenance (1,2,3..n
years)
- Follow the maintenance process, which consists of the
following hi level activities;
- Problem definition: The maintenance request is received,
classified, and recorded
- Problem analysis: Analysis of the impact of the maintenance
request, effort/cost estimation
- Solution design: Modification of the software design and
design document
- Solution implementation: Implementation of the change,
recompiling and unit testing
- System test: Complete regression test + new tests
- Acceptance test: User validates the modified/enhanced
functionality
- Delivery: System is placed into production replacing the
previous release
Note: The above sequence of steps may involve
necessary customization depending upon the nature of maintenance
(corrective/adaptive/perfective/preventive)
|
