RESEARCH ARTICLE
Dynamics of task allocation in global software development
Salma Imtiaz
|
Naveed Ikram
Faculty of Computing, Riphah International
University, Islamabad, Pakistan
Correspondence
Salma Imtiaz, Faculty of Computing, Riphah
International University, Islamabad, Pakistan.
Email: salma.imtiaz@iiu.edu.pk
Abstract
Context Global software development (GSD) promises high‐quality software at low cost. GSD
enables around‐the‐clock development to achieve maximum production in a short period of time
by using expertise around the globe. This development is only possible if tasks are effectively dis-
tributed among sites to ensure smooth development. Therefore, one of the key challenges of
GSD is to design a task allocation strategy.
Objective The objective of this study is to identify various factors that influence task alloca-
tion decisions in GSD and to assess their relative importance. We also aim to determine the inter-
relationship between the factors along with role played by product architecture and
communication and coordination needs during task allocation.
Methods We used multiple methods to collect data about the task allocation factors and pro-
cess. A web‐based survey of 54 GSD practitioners from around the globe was conducted to iden-
tify the factors and their relative importance for task allocation decision. The selection of the
sample was performed via the snowball sampling technique. To increase the sample size, the sur-
vey was also posted on social media, that is, Facebook, LinkedIn, and Twitter. Nonparametric sta-
tistical tests were applied on the response data to identify correlations and significance.
Interviews were conducted from 11 project managers having 10 to 30 years GSD experience
to gain insight into the dynamics of task allocation process.
Results The survey results highlight “expertise,”“site characteristics,” and “task site depen-
dency” as the most important factors for a task allocation decision. The interview study has
highlighted the importance of situation‐specific decision making during task allocation. The signif-
icance of factors varies with the characteristics of task, characteristics of organization, type of
GSD, and objective of doing GSD. The culture and time differences between distributed sites
have been assigned a low priority by the majority of the practitioners. The most common way
of distributing task is functional area of expertise and phase‐based division, where detailed archi-
tecture is not considered. Interdependent modules are not allocated to distributed sites because
of communication and coordination overhead. Our results also demonstrate a correlation
between various factors and support Conway’s law.
Conclusions We have interesting results in which certain factors are ranked differently from
the prevalent views in the GSD literature. The survey results have also confirmed the application
of Conway’s law in practice for task allocation, where interdependent modules are not allocated
to distributed sites. The significance of factors varies with characteristics of task, characteristics
of organization, type of GSD, and objective of GSD, which require trade‐off between factors.
The need of a well‐defined situation‐specific task allocation framework is evident from the results
of survey and interview study. The outline of a task allocation framework for GSD is presented.
KEYWORDS
framework, global software development, interview study, practitioners view, survey, task
allocation
Received: 26 May 2016 Revised: 6 August 2016 Accepted: 13 September 2016
DOI 10.1002/smr.1832
J Softw Evol and Proc 2016; 1–17 Copyright © 2016 John Wiley & Sons, Ltd. wileyonlinelibrary.com/journal/smr 1