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Examining Requirements Change Rework Effort: A Study

ISSN : 0975 - 9018
Journal from gdlhub / 2017-08-14 11:52:34
Oleh : Bee Bee Chua1 and June Verner2, International Journal of Software Engineering & Applications
Dibuat : 2012-06-26, dengan 1 file

Keyword : requirements change, effort rework, unexpected errors, weak characteristics and attributes, change request forms
Subjek : Examining Requirements Change Rework Effort: A Study
Url : http://airccse.org/journal/ijsea/papers/0710ijsea4.pdf
Sumber pengambilan dokumen : Internet

Although software managers are generally good at new project estimation, their experience of scheduling




rework tends to be poor. Inconsistent or incorrect effort estimation can increase the risk that the completion




time for a project will be problematic. To continually alter software maintenance schedules during software




maintenance is a daunting task. Our proposed framework, validated in a case study confirms that the variables




resulting from requirements changes suffer from a number of problems, e.g., the coding used, end user




involvement and user documentation. Our results clearly show a significant impact on rework effort as a result




of unexpected errors that correlate with 1) weak characteristics and attributes as described in the program’s




source lines of code, especially in data declarations and data statements, 2) lack of communication between




developers and users on a change effects, and 3) unavailability of user documentation. To keep rework effort




under control, new criteria in change request forms are proposed. These criteria are shown in a proposed




framework; the more case studies that are validated, the more reliable the result will be in determining the




outcome of effort rework estimation.

Deskripsi Alternatif :

Although software managers are generally good at new project estimation, their experience of scheduling




rework tends to be poor. Inconsistent or incorrect effort estimation can increase the risk that the completion




time for a project will be problematic. To continually alter software maintenance schedules during software




maintenance is a daunting task. Our proposed framework, validated in a case study confirms that the variables




resulting from requirements changes suffer from a number of problems, e.g., the coding used, end user




involvement and user documentation. Our results clearly show a significant impact on rework effort as a result




of unexpected errors that correlate with 1) weak characteristics and attributes as described in the program’s




source lines of code, especially in data declarations and data statements, 2) lack of communication between




developers and users on a change effects, and 3) unavailability of user documentation. To keep rework effort




under control, new criteria in change request forms are proposed. These criteria are shown in a proposed




framework; the more case studies that are validated, the more reliable the result will be in determining the




outcome of effort rework estimation.

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