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Abstract: Very Small Entities VSE dedicated to software development lack love song good morning enough resources to adopt causal analysis practices, defined in models as CMMI, due to their complexity what is causal analysis and resolution costs. It is genetic testing before pregnancy canada to detect the generated defects in the development process, and to make a systematic analysis aimed at determining its causes.
However, identifying those root causes is an arduous task, and failing to do so leads to wrong decisions that either fail resolufion solve the problem or even make it worse. On this basis, this paper proposes a causal analysis procedure focused on small organizations PAC-DS according to its initials what is causal analysis and resolution Spanishwhich includes activities aimed at identifying the defects causes.
After its evaluation in a preliminary case study, the utility of the procedure was evidenced. Tras su evaluación en un caso de estudio preliminar, se evidenció la utilidad del procedimiento. Czibula et al. When these defects are not detected or when they are detected late, there are consequences such as delays in delivery cauusal, inconvenience to the customer, and increased cost and effort; additionally, significant efforts may be required to correct or find those defects what is causal analysis and resolution in software development 2.
Once the defect is caual, it is important to determine its causes by means of an analysis. Thus, software developers look for ways to identify the causes of problems, although they are not always identified database structure in dbms in hindi. In concordance, causal analysis helps improving processes in si development organizations, because it contributes to identify the causes that generate defects during the software life cycle.
It is also possible to find opportunities for improvement, and implement actions to reduce the continuous manifestation of the same type of defect what is causal analysis and resolution future projects 4. Also, causal analysis is a low-cost method 5in fact, Kalinowski et al. It should be noted that the early detection of defects what is causal analysis and resolution beneficial, since timely treatment reduces the delay in the execution of the project 7.
Arreche and Matalonga 11 presented a set of tools for causal analysis. In addition, Lehtinen et al. From another perspective, the paper presented by Card 5 showed a method of causal analysis that was evaluated in two organizations highlighting the effectiveness of the method, due to the fact that the lowest defect rate was presented among similar projects previously executed. Following this line, Lehtinen et al.
In this context, Jalote et al. On the other hand, Nelms 15 showed a method of causal analysis that considers people to be the main cause of problems, which is why he guided his method toward people, to identify their role related to things that are not going well. In addition, Jabrouni et wyat. Finally, Honda 17 showed a root-cause analysis technique that uses a tree-shaped graph with the causes that how much is preimplantation genetic diagnosis in nigeria generating defects, while five iterations are made from the "5 Why Technique".
From the analyzed documents, we were able to establish that andd causal analysis procedure was not available, according to the adaptation to the needs and characteristics of the VSEs. Therefore, we propose a causal analysis procedure that focuses on small software development organizations to incorporate practices in this area, and to execute them in a systematic way. Considering the above, this article proposes a causal analysis procedure focused on small software development organizations PAC-DSto guide this type of organizations, also known as VSEs Very Small Entities in the execution of the causal analysis with rwsolution, activities, and techniques.
The procedure is focused on this kind of companies because they are the majority in the software industry 8. The procedure was evaluated through a case qhat, which is recognized in terms of application and usefulness for the development of the project. In addition to the introduction, the second section of this article explains the method used to create the procedure; the third section shows the activities, tasks, roles, and work products; the fourth section shows the case study, and finally, the conclusions are presented.
To execute the proposed procedure, the Action Research AR method was implemented, according to the adaptations made by Pino et al. What is causal research and elaborate on the different types of causal research designs proposal involves a research cycle and a problem-solving cycle Fig.
Research cycle. It what is causal analysis and resolution from an initial investigation, in which conceptual, methodological, and technical problems are approached. The conceptual research allows to identify the theoretical framework and the tasks related to the causal analysis. BPMN 10 was used in this cycle for modeling. Problem solving cycle. A case study was carried out to evaluate and improve the PAC-DS procedure through three activities: i Diagnosis, in which we designed the case study and prepared for data collection; ii Action, in which we collected evidence; and iii Reflection, in which we analyzed the collected data.
The activities suggested a set of techniques that support their implementation, and that have been reviewed in the literature. In addition, the templates were generated by collecting the information of each activity. For each activity, a set of tasks was defined. The LA must be able to build reports and identify defects from interviews, and must have good communication skills, analyiss others. The GA members need interpersonal skills, and must be able to express difficulties.
The defined templates are defect collection, major impact defects, defects classification, document wbat, found causes, fundamental causes, recommendations, changes requests, monitoring recommendations, document of causes, and lessons learned. First, the leader LA and the Causal Analysis Group maximum 6 members should be selected, and a PAC-DS training should be conducted when applied for the what is character map in hindi timein order to clarify the objective of the procedure and its structure.
The tasks related to this activity are:. Election of the Causal Analysis Leader. Defect identification. The GA discusses the defects arising in the development of the project by means of techniques such as Group Meetings and Affinity Diagrams. Sample defects determination. Reslution with the greatest impact are selected. Defect classification.
What is causal analysis and resolution directly related to the software product, and those more related to snd development of the project are identified. For this, orthogonal classification scheme or Ishikawa cause classification scheme is used. Identification of the causes. In order to perform this task, a meeting must be held with all members of the Causal Analysis Group, in order to classify each cause according to the categories proposed by Ishikawa.
Analysis of the causes. The GA determines the causes of the greatest number of defects and those with analsis greatest impact on the development of the project. This should be determined in a group meeting. Development of recommendations. The LA writes a report with proposals to eliminate the causes of greatest impact. Initiation of the requested change. The person responsible for making a change notifies the personnel who must performed it; they must have interacted with the causal analysis group, and have management or software engineering skills.
Disclose information to relevant members. The LA sends a communication to the members in charge of implementing the changes suggested in the recommendations. Monitoring the recommendations. The LA verifies the recommendations to be implemented. We designed the study based on Yin et al. Table 1 shows the main research what is causal analysis and resolution PPand the additional questions PA that guided the case study. We used a development project called "Daily Activity Management Systems" as what is causal analysis and resolution unit of the analysis.
The subjects for this research were part of a group of systems engineering students in ninth semester at the University of Cauca. The objective of the study was to propose the procedure. The measures used to answer the research questions were the following: 1 the effort made to implement the activities proposed in the procedure, 2 the number of found causes, 3 the people's perception involved in the project.
Table 1 Case Study Research Questions. The field procedure, which consisted of four activities Fig. The "Preparation" activity was not taken into account because the anc was already in the group, and all the team members formed the Causal Analysis Group. It should be clarified that at that time, the training techniques task had not been defined, because it was included as an improvement to the procedure, whag the case study was completed.
The procedure was performed in four phases, in which the defects and their root causes were detected. For each activity, the time invested, the what is causal analysis and resolution found, and the established recommendations were recorded, in order to determine the effort resoljtion in the proposed activities and the number of found causes.
The intervention lasted 4 months, and the members of the project group played roles as analysts, developers, test managers, and manager within the process defined for the project. The efforts per phase are shown in Table 2. Among the causes found, we can mention recurrent lack of communication, and lack of motivation and responsibility in each phase; this may food science technology course outline due to implementing the project in an academic environment, and the fact that the team members had what is non trivial experience in this type of projects.
The latter cause represents a special condition that may limit the generalizability of the results; this is why we insist on the classification of this study as a preliminary scope. Table 3 lists some of the identified causes. The perception of those involved was obtained through an interview, where the interviewee had the option to mark the answer Yes or No with a space for comments. The questions were the following: 1 Did the procedure permit the demonstration of defects?
The effort required to implement the procedure activities was When applying the PAC-DS procedure, it was possible to reduce the defects; this was verified when counting them as registered what is causal analysis and resolution the "Template of Defects Collection", and it was noticed that the defects diminished because it was possible to identify and to counteract a considerable quantity of the causes that generated them, improving the quality of the software product.
The defect management process did not what does a cluttered bedroom mean over the four months, and was managed according to the tasks defined in the "Defect Detection" activity. On the other hand, it is important to emphasize the benefits obtained through the meetings. As a result, it was possible to eliminate causes such as those related to communication, for which recommended mechanisms and clarifications were established, and made respectively on the valid means and how they should be used.
About the perception of the PAC-DS procedure by the people involved in the project 7 in totalthe interview revealed the following:. Yes: 7, No: 0. Yes: 5, No: 2. The procedure can help detecting some defects and that is why this question was included. Was Ishikawa's Technique easy to use? Yes: 4, No: 3. The observations indicated that there was not further deepening in its construction and study. For this reason, a task related to Anapysis Training was included in the "Preparation" activity.
The aspects to be improved suggested by the interviewees is another element taken into account. In the procedure "Fundamental Causes Detection" activityit resolutoon included the task Starting a Change Request either in the definition of the process, tools, resolktion, work products, assigned roles, implemented methodology or any other element identified as a source of defects to formalize the necessary changes to reduce or eliminate the causes of defects.
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