Iterations in software development processes: A comparison of agile and waterfall software development projects

Iteration is an essential element of software development processes. Software methodologies like agile and waterfall use the term ‘iteration’ in several different ways for improving either the quality or the functionality of the software. There are no studies, however, which have thoroughly analyzed and characterized these forms of iterations and their differences as they are enacted in organizations. In order to reveal these iterative forms we conducted a study of two mid-sized software development projects at a large global Fortune 100 corporation – one agile project and one waterfall project. Using advanced event sequence-analytic techniques based on detailed process data, our analysis reveals that agile and waterfall iterations differed in design and development phases due to different sources and types of iterations

Sound absorption of lightweight brick containing expanded polystyrene beads and palm oil fuel ash

Bricks are considered as important and strongest materials being used over the years. Commonly, bricks are made of clay mineral and usually used in construction of building wall. The purpose of this study is to assess the effectiveness of palm oil fuel ash (POFA) and expanded polystyrene beads (EPS) as a brick and its suitability as sound absorption material. POFA is used as partial replacement of cement while EPS as partial replacement of sand in the mortar mixture. Various percentages of EPS and POFA have been used which include 0%, 20%, 30%, 40% and 50% as sand replacement and from 0%, 5%, 10%, 15%, 20% and 25% as cement replacement respectively. Sound absorption tests were conducted using impedance tube. From this study, it has been identified that for sound absorption test, lowest result recorded is at maximum 25% POFA replacement with 50% EPS replacement with 0.011 sound absorption coefficient at frequency of 3500 Hz. The best sound absorption coefficient recorded is 0.998 at frequency of 250 Hz for sample with 0% EPS and 20% POFA replacement. It can be recognized that the brick produced have the excellent sound absorption

Upgradeable Mechatronic Systems - An Approach to determine changing Product Properties using Foresight

In light of the increasing complexity and dynamic of the market environment, there is a need to consider future requirements during the development of upcoming product generations. This applies in particular to modular product architectures as their elements are used in several products and over a longer period. To overcome this challenge and to develop more sustainable products, upgrading can be a solution. Based on identified options for action, this paper proposes an approach to determine changing product properties based on the Model of PGE – Product Generation Engineering. Depending on the potential of the individual characteristics of a product property in its future environment, the properties can be classified as static or dynamic time-dependent for later upgrade planning. The approach was applied in a case study and a research project. Its applicability and usability could be demonstrated. Results from the application of the approach can be used in development projects to define upgrade packages for the upcoming product generation or to optimize the modularization of future products

Applying Agile Lean to Global Software Development

Although challenges of Global Software Development (GSD) are well known in the industry, practitioners and the organizations look for ways to improve results and overcome challenges. Companies have tried to implement many workable solutions possible to solve issues like poor communication, lack of trust, low morale and many other such issues prevalent in the distributed setting. With the success of agile, the methodology gained interest in leveraging its benefits to alleviate some of these challenges. Similarly, lean was also implemented in distributed software development to resolve issues. While each methodology provided some improvement in the results achieved in global software development, many issues persisted and the desired growth/results were not received. Recent years have seen an increased interest of applying a combination of agile and lean software development paradigms to resolve current industry issues in the area and meet the needs of rapid changing environment. This study aims to study the current practices of the combination of agile lean existing in the industry and how it can be utilized in the global software development. The study focuses on challenges faced to implement agile lean and successful sustainable implementation of agile lean in an environment of global software development

Improving and embedding project management practice: generic or context dependent?

Taking into account the contingency theory, this paper explores the extent to which key project management improvement initiatives and key embedding factors, identified in a previously developed conceptual framework, are dependent on organizational context, namely sector of activity, organization size, geographic area and project types. Therefore, aiming to guide professionals on making use of such framework in their organizations. Statistically significant contextual correlations were looked for in a worldwide sample of 793 questionnaire responses from project management professionals, using Principal Component Analysis, ANOVA test and post-hoc Tukey test. Context related differences found were limited, suggesting that the framework for improving and embedding project management practice is substantially generic. Therefore, the paper shows the explanatory power of the framework, which can be used by any organization independent of its sector of activity, dimension, geographic area and project types, however indicating the existence of slight differences. For example, Information Technology companies might give more relevance to initiatives such as corporate standardization and tailoring of project management processes tools and techniques than Engineering and Construction companies

Improving and embedding project management practice: Generic or context dependent?

Taking into account the contingency theory, this paper explores the extent to which key project management improvement initiatives and key embedding factors, identified in a previously developed conceptual framework, are dependent on organizational context, namely sector of activity, organization size, geographic area and project types. Therefore, aiming to guide professionals on making use of such framework in their organizations. Statistically significant contextual correlations were looked for in a worldwide sample of 793 questionnaire responses from project management professionals, using Principal Component Analysis, ANOVA test and post-hoc Tukey test. Context related differences found were limited, suggesting that the framework for improving and embedding project management practice is substantially generic. Therefore, the paper shows the explanatory power of the framework, which can be used by any organization independent of its sector of activity, dimension, geographic area and project types, however indicating the existence of slight differences. For example, Information Technology companies might give more relevance to initiatives such as corporate standardization and tailoring of project management processes tools and techniques than Engineering and Construction companies.INCT-EN - Instituto Nacional de Ciência e Tecnologia para Excitotoxicidade e Neuroproteção(SFRH/BPD/111033/2015

The Impact of Customer Collaboration on Agile Product Development Success in Technology Startups Within the Pacific Northwest

While agile software development is being adopted in more organizations recently, many products using the methodology are still failing in the market due to inadequate customer collaboration despite the purported benefits. Within start-ups, where speed and early market penetration can be the death or success of a company, understanding if using agile software development including adequate customer collaboration makes a significant difference is important. A study which investigates the impact of including customer collaboration in the agile product development process could uncover whether or not a product is successful within technology focused start-up’s in the Pacific Northwest. This research could allow technology focused start-ups to learn how to emulate success and avoid pitfalls using agile software development to create better, more transformative products for the world. The research question is: how does the inclusion of customer collaboration in the agile product development process by product owners impact the overall success of the product within Pacific Northwest technology start-up companies? This concept paper includes information on the nature of the study, the significance, relationship to cognate, a literature review beginning, and a significant amount of research related to the hypothesis

Improving the management of cost and scope in software projects using agile practices

While organizations want to develop software products with reduced cost and flexible scope, stories about the applicability of agile practices to improve project development and performance in the software industry are scarce and focused on specific methodologies such as Scrum and XP. Given these facts, this paper aims to investigate, through practitioners' perceptions of value, which agile practices are being used to improve two performance criteria for software projects-cost and scope. Using a multivariate statistical technique known as Exploratory Factor Analysis (EFA), the results suggest that the use of agile practices can be represented in factors which describe different applications in software development process to improve cost and scope. Also, we conclude that some agile practices should be used together in order to get better efficiency on cost and scope in four development aspects: improving (a) team abilities, (b)management of requirements, (c) quality of the code developed, and (d) delivery of software on-budget and on-time.Comment: 47-64p