The attention to sustainability impacts arising during the lifecycle of products is growing as industry wants to increase its contribution to a sustainable society. To do so, companies must find ways to navigate the complexity of the needs within the socio-ecological system in which they operate. In engineering design projects, the interpretation of needs into requirements is essential, as they represent the collective understanding of the design problem to be solved. Ideally, requirements are possible to verify and validate, which makes it challenging for industry to integrate socio-ecological considerations, often based on qualitative models, into requirements. Sustainability then tends not to be prioritized in trade-offs with traditionally identified requirements for engineering design. A qualitative research approach within design research methodology framed a sequence of studies guided by the research question ‘How can requirements be utilized to support Sustainable Product Development?’ First, a research gap was identified from a literature review which indicated a lack of socio-ecological systems contextualization in the identification, as well as the traceability of sustainability criteria to integrate into requirements. Secondly, a conceptual model was established for how management of requirements can be improved to facilitate traceability, as well as how contextual socio-ecological systems perspective can be introduced in the selection, of sustainability criteria for engineering design projects. For this purpose, the results from a multiple-case study based on semi-structured interviews with seven design and manufacturing companies was triangulated with findings of an in-depth literature analysis. Five key elements of management of sustainability in requirements were proposed in a profile model corresponding to different levels of sustainability maturity. A third study explored, based on literature and prototype causal loop diagramming, the potential of a group model building approach to enhance contextual understanding of strategically identified, i.e., company-tailored, sustainability criteria in relation to traditional requirements in early phases of the product innovation process. A final study investigated how a strategic sustainability perspective can be integrated with engineering design methods and value modelling to create a decision support for concept selection. The studies together indicate that key constituents of good requirements, traceability and systems contextualization, can be achieved also for socio-ecological sustainability considerations. This requires organizational commitment and will be reflected in the design of the operational management system for their product innovation process. Following the proposed five key elements of sustainability integration in requirements, a company is expected to increase the organizational sustainability maturity, and hence its capability to contribute to a sustainability transition. This research also shows that there is a gap in current methods and tools for enhanced socio-ecological systems contextualization. The two last studies of this thesis give promising approaches of tools and methods to be further developed and analyzed, namely group model building, system analysis and value modelling.

Requirements analysis is an essential part of the System Development Life Cycle (SDLC) in order to achieve success in a software development project. There are several methods, techniques and frameworks used when expressing, prioritizing and managing requirements in IT projects. It is widely established that it is difficult to determine requirements for traditional systems, so a question naturally arises on how the requirements analysis is executed as AI solutions (that even fewer individuals can grasp) are being developed. Little research has been made on how the vital requirements phase is executed during development of AI solutions. This research aims to investigate the requirements analysis phase during the development of AI solutions. To explore this topic, an extensive literature review was made, and in order to collect new information, a number of interviews were performed with five suitable organizations (i.e, organizations that develop AI solutions). The results from the research concludes that the requirements analysis does not differ between development of AI solutions in comparison to development of traditional systems. However, the research showed that there were some deviations that can be deemed to be particularly unique for the development of AI solutions that affects the requirements analysis. These are: (1) the need for an iterative and agile systems development process, with an associated iterative and agile requirements analysis, (2) the importance of having a large set of quality data, (3) the relative deprioritization of user involvement, and (4) the difficulty of establishing timeframe, results/feasibility and the behavior of the AI solution beforehand.

Att arbeta mer miljövänligt och hållbart blir alltmer viktigt för många företag. Så även inom logistik- och IT-branschen. Gröna informationssystem har hyllats för sina positiva effekter. Dessvärre undersöks oftast inte dess effekter utifrån ett miljöperspektiv, vilken påverkan dessa har på miljön utan mer vilka organisatoriska effekter som uppnås av dess implementation. Det har även identifierats att flest antal fel i utveckling av informationssystem uppkommer genom kravhanteringsprocessen. Problemet adresseras genom att undersöka vilken effekt de gröna informationssystemen inom logistikbranschen har på miljön och hur dessa möjliggör för uppnående av miljömålen i Agenda 2030. Kravhanteringsprocessen studeras även för att undersöka dess inverkan på de möjliga positiva miljöeffekterna av informationssystemen. För att kunna besvara studiens syfte och forskningsfrågor har en kvalitativ studie genomförts med intervjuer hos tre IT-tjänsteleverantörer. Alla med ett gediget hållbarhetsarbete och kunder i logistikbranschen. Litteraturen i uppsatsen låg till grund för intervjuguiden och användes vid de semistrukturerade intervjuer. Intervjuguiden är uppbyggd av sju kategorier. Dessa kategorier är gröna IS lösningar, miljöaspekter, organisatorisk påverkan, utmaningar, förhållningsregler, kravhantering och arbetsmetoder. Efter analys av de transkriberade intervjuerna identifierades ytterligare en kategori med relevans för studiens syfte, arbetsmiljö & hållbarhetsarbete. Dessa kategorier har varit betydelsefulla för utvecklandet av två modeller som förklarar kategoriernas påverkan vid utvecklandet av informationssystem som genererar positiva effekter på miljön. / Working more environmentally friendly and sustainable is becoming more important for a lot of organizations. Both in the logistics and IT industry. Green information systems have been acknowledged for their positive effects. Though when examined it is often not from an environmental view, effects on the environment, but instead on organizational effects from the implementation of the information systems. It has also been identified that most errors in the development of information systems occur through the requirements management process. The problem is addressed through examining the possibility of reaching the environmental goals in Agenda 2030 by the effects of green information systems in the logistics industry. The requirements management process was also studied to examine the impact of possible positive environmental effects by the information systems. To be able to answer the purpose of the research questions, a qualitative study was conducted with interviews with three IT service providers. All with genuine sustainability work and customers in the logistics industry. The literature in the thesis was the basis for the interview guide and was used in the semi-structured interviews. The interview guide is built upon seven categories. These categories are green IS solutions, environmental aspects, organizational impact, challenges, rules of conduct, requirements management and working methods. After analysis of the transcribed interviews, another category relevant for the purpose of the study was identified, work environment & sustainability work. These categories have been important for the development of two models that explain the categories' impact at the development of information systems that generate positive effects on the environment.

El presente trabajo se centra en desarrollar un sistema para la atención de requerimientos con el fin de gestionar y evaluar con precisión los requerimientos que se generan a diario en una empresa que desarrolla software contable. Asimismo, reducir la brecha del costo, que normalmente se realiza por experiencia del personal, con la ayuda de la tecnología machine learning, la cual ayudará a la predicción del costo del requerimiento. Con el fin de conseguir el éxito, este trabajo se ha estructurado en los siguientes capítulos: En el capítulo 1, se expondrá el marco teórico, también se presentará a la organización objetivo y su situación problemática. En el capítulo 2, se presentará los objetivos del proyecto, junto a sus respectivos indicadores. Se expondrá los distintos beneficios que traerá consigo el proyecto. En el capítulo 3, se desarrollará todo el modelado de negocio, actores, trabajadores y diagrama de casos de uso del negocio. En el capítulo 4, se abordarán los temas de modelado de los casos de uso del sistema, con sus respectivos actores, paquetes y diagramas; por último, la especificación detallada de casos de uso del sistema del ciclo cero y el modelo conceptual. En el capítulo 5, donde se definirá la arquitectura de software y se plantearán las metas, restricciones, mecanismos y vistas (lógica, implementación, despliegue) de la arquitectura. En el capítulo 6, se definirá la política de calidad de software, los objetivos, métricas y las pruebas del software. En el capítulo 7, se desarrollará la construcción del núcleo software, indicando sus patrones de solución y modelo de datos. En el capítulo 8, se presentará a los principales interesados, EDT, cronograma y riesgos del proyecto. / The present work focuses on developing a system to meet requirements in order to accurately manage and evaluate the requirements that are generated daily in a company that develops accounting software. Likewise, reduce the cost gap, which is normally carried out by the experience of the staff, with the help of machine learning technology, which will help to predict the cost of the requirement. In order to achieve success, this work has been structured in the following chapters: In Chapter 1, the theoretical framework will be covering the objective organization and its current problems, a diagnose of the situation. In Chapter 2, the objectives of the project will be presented, along with their respective indicators. The different benefits that the project will bring will be exposed. In Chapter 3, we will develop all the business modeling, actors, workers, and diagrams. In Chapter 4, the topics of modeling the use cases of the system will be addressed, with their respective actors, packages and diagrams, finally, the detailed specification of system use case of the zero cycle and the conceptual model. In Chapter 5, where the software architecture will be defined, where the goals, restrictions, mechanisms and views of the architecture are presented. Chapter 6 will define the software quality policy, objectives, metrics, and testing of the software. In Chapter 7, the construction of the software kernel will be developed, indicating its solution patterns and data model. In Chapter 8, the main stakeholders, WBS, project schedule and risks will be presented. / Tesis

L’objectif principal de l’ingénierie des systèmes est la création d’un ensemblede produits et des services de haute qualité qui permettent l’accomplissement de tâchespour répondre aux besoins des clients. Un projet typique d’ingénierie des systèmes peutêtre divisé en trois phases : la définition, le développement et le déploiement. La phasede définition comprend les activités de capture des exigences et de leur raffinement. Àla fin de la phase de définition du système, nous avons toutes les exigences fonctionnelleset non-fonctionnelles du système. L’un des résultats de la phase de développement est lemodèle de travail initiale du système. La phase de déploiement se compose des activitésliées à (1) l’évaluation opérationnelle du système, à (2) l’utilisation du système et à (3) sonentretien. Dans un cycle de vie du projet, il y a de nombreuses questions qui doivent êtretraitées au cours des différentes phases pour finalement livrer un produit.Nous avons proposé une solution aux problèmes liés à l’ingénierie des exigences et auxtechniques de la détection, de la gestion et de la résolution des conflits entre les partiesprenantes. Cette thèse est basée sur les dernières avancées dans les pratiques industrielleset de recherche dans le domaine de l’ingénierie de conception du système.L’objectif de ce travail de thèse est de proposer une méthodologie de conception novatriceet globale en tenant compte de l’environnement multidisciplinaire et de multiplesintervenants. Nous avons proposé un langage de modélisation des exigences basé sur lestechniques GORE. Nous avons proposé quelques outils pour réduire l’ambiguïté des exigencestels l’utilisation de phrases négatives et de tests á l’aide de négation lorsqu’il s’agitde traiter certaines exigences difficiles à comprendre avec les techniques classiques. Nousavons également proposé des techniques de gestion des exigences pour mieux assurer leurtraçabilité. Concernant la résolution des conflits, nous avons proposé des techniques depondération des critères au cours des différentes étapes du cycle de vie. En utilisant lamême technique de pondération de critères, une méthode de décision multicritères et multiparticipants est proposée pour divers problèmes de décision survenant pendant le cycle devie du projet d’ingénierie systèmes.Enfin, une approche globale de l’ingénierie des systèmes est proposée pour intégrertoutes les contributions faites précédemment et est illustrée sur une étude de cas concernantun projet réel avec la présentation dŠun outil SysEngLab que nous avons développé pourmettre en oeuvre la majorité des méthodes et des techniques proposées au cours de thèse / The primary goal of the systems engineering is the creation of a setof high quality products and services that enable the accomplishment of desiredtasks and needs of the clients or user groups. A typical systems engineering projectcan be divided in to three phases: definition, development, and deployment. Thedefinition phase involves the activities of requirement elicitation and refinement.By the end of system definition phase, we have all the system functional and nonfunctionalrequirements. One of the results of development phase is initial workingmodel of the system. The deployment phase consists of activities of operationalimplementation, operational testing and evaluation, and operational functioning andmaintenance. In a project life cycle there are numerous issues to be sorted out duringthe various phases to finally deliver a successful product. We proposed solution tothe problems of requirements engineering & management, design conflict detection,and stakeholders conflict resolution. This thesis is based on the recent advances inindustrial practices and research in the field of system design engineering.The objective of this thesis work is to propose an innovative and holistic conceptionmethodology taking into account the multidisciplinary environment and multiplestakeholders. We have proposed a requirements modeling language based on theGORE techniques. We have proposed a few of tools for reducing the ambiguity ofrequirements such as: using negation and test cases using negation for contractingdifficult requirements. Requirement management techniques are proposed to providebetter requirements traceability and aid for other systems engineering activities.Few guidelines have been designed to guide the design of traceability policies. Criteriaweighting technique has been designed to better carry out the conflict resolutions,during the various life cycle stages. Using the same criteria weighting technique aflexible multi criteria multi participant decision methodology is proposed for variousdecision problems arising during the life cycle of systems engineering project.Finally, a comprehensive prescriptive systems engineering approach is proposedusing all the previously made contributions and an illustrative case study of a realongoing project is presented developed using the supporting tool SysEngLab, whichimplements majority of the methods and techniques proposed during thesis

Molntjänster är ett snabbt växande område och utgör en viktig funktion i samhället och för verksamheter. Det som driver molntjänster är storskaliga datacenter som samlar tusentals servrar med infrastruktur. Dessa datacenter kräver en hög energianvändning för att drivas vilket utgör ett stort koldioxidutsläpp. Leverantörer upplever ökade krav i hållbarhetsfrågor och arbetar aktivt för att möta dessa krav. Verksamheter har därför en betydande roll i hur leverantörer arbetar med hållbarhet genom att ställa hållbarhetskrav. Det finns däremot utmaningar med att ställa hållbarhetskrav vilket är brist på kunskap, strategier och resurser.  Studien avser att identifiera de ekologiska hållbarhetsaspekter som verksamheter kan kravställa mot molntjänstleverantörer. Syftet med studien var att förmedla kunskap om vilka ekologiska hållbarhetsaspekter som kan appliceras i verksamheters kravspecifikation mot molntjänstleverantörer. Tidigare forskning beskriver hållbarhetsaspekter som molntjänstleverantörer kan applicera för att minska sitt koldioxidutsläpp. Dessa aspekter är: miljöcertifiering, nyckeltal, förnybar energi och energieffektiviserade strategier. Studien antog en kvalitativ forskningsansats. Datainsamlingen utfördes genom semistrukturerade intervjuer. Analysen utfördes med en tematisk analysmetod och det identifierades tre teman vilket är kunskapslucka, prioritering och resursbehov. Studien diskuterar dessa teman i relation till tidigare forskning kring hållbarhetsaspekterna och utmaningar.  Slutsatsen av studien är fem identifierade hållbarhetsaspekter som är: miljöcertifiering, nyckeltal, förnybar energi, geografisk plats och energieffektiviserade strategier. Dessa hållbarhetsaspekter kan verksamheter kravställa mot molntjänstleverantörer och kan reducera utmaningarna med att identifiera hållbarhetskrav. / Cloud services are a rapidly growing field and play a crucial role in society and businesses. What drives cloud services are large-scale data centers that house thousands of servers with infrastructure. These data centers require high energy consumption to operate, resulting in significant carbon emissions. Providers are facing increased demands for sustainability and actively working to meet these requirements. Businesses, therefore, have a significant role in influencing how providers approach sustainability by setting sustainability criteria. However, there are challenges in setting sustainability requirements due to a lack of knowledge, strategies, and resources. This study aims to identify the ecological sustainability aspects that businesses can demand from cloud service providers. The purpose of the study was to provide knowledge about the ecological sustainability aspects that can be included in businesses' specifications when selecting cloud service providers. Previous research describes sustainability aspects that cloud service providers can implement to reduce their carbon emissions. These aspects include environmental certification, key performance indicators, renewable energy, and energy-efficient strategies. The study adopted a qualitative research approach. Data collection was conducted through semi-structured interviews. The analysis was performed using thematic analysis, and three themes were identified: knowledge gap, prioritization, and resource requirements. The study discusses these themes in relation to previous research on sustainability aspects and challenges. The conclusion of the study highlights five identified sustainability aspects: environmental certification, key performance indicators, renewable energy, geographical location, and energy-efficient strategies. These sustainability aspects can be demanded by businesses from cloud service providers and can help address the challenges of identifying sustainability requirements.

Der systematische Umgang mit Unsicherheiten, die in Form von Wissens- und Definitionslücken vorliegen, stellt eine zentrale Aktivität der Produktentwicklung dar. Im Zuge der Zielsystementwicklung liegen Unsicherheiten insbesondere in Form von aus Kunden- und Anwendersicht nichtzutreffender und fehlender oder unvollständiger Ziele und Anforderungen vor. Um bei der Konkretisierung des initialen Zielsystems dahingehend zu unterstützen, wurde eine Methode abgeleitet, welche die systematische Integration von Kunden und Anwendern in die Erhebung von Zielsystemelementen adressiert. Dabei formulieren Kunden und Anwender gemeinsam mit Produktentwicklern Ziele für das zu entwickelnde Produkt. Um dies zu unterstützen, werden die Ziele in Form von Satzschablonen formuliert, um die Vollständigkeit der Ziele zu gewährleisten. Weiter kann durch den Aufbau der Satzschablone sichergestellt werden, dass die Begründung in Form des Kunden- oder Anwendernutzens dokumentiert ist. Zusätzlich wurde ein Portfolio abgeleitet, welches die Ziele entsprechend der Zielgruppe und des relevanten Use-Cases strukturiert und damit fehlende Ziele darlegt. Im Rahmen einer Evaluation konnte gezeigt werden, dass durch die Anwendung der Methode in einem Entwicklungsprojekt von Hekatron Brandschutz die Vollständigkeit des Zielsystems gesteigert und die vorliegende Unsicherheit reduziert werden konnte.

Vårt examensarbete har genomförts på företaget Electrolux Laundry Systems (ELS) logistikavdelning, Logistics Center Ljungby (LCL).  Under det senaste året har företaget haft motgångar vid ett IT/IS-projekt inom sin logistikavdelning (LCL). Uppsatsen har således syftat till att beskriva och analysera varför IT/IS-projektet har avstannat, och ej nått implementering. För att uppnå syftet har vi utgått från en, i stort sett, kvalitativ ansats där primärdata har insamlats genom metoder såsom intervjuer och deltagande observationer medan sekundärdata inhämtats i form av dokumentundersökningar och offentliga dokument.   Resultatet av studien har utgjorts av deltagande observationer på fallföretagets logistikavdelning, LCL, samt intervjuer med olika verksamhetsnivåer. Detta har påvisat bristande kommunikation och direktiv samt fallföretagets brister i förstudiens utförande vad gäller förankring av projektet, planering av tid, resurser och kostnader samt formulering av krav. Slutsatser vi kunnat dra av detta är att en fungerande kommunikation mellan olika verksamhetsnivåer samt en noggrant utförd förstudie är essentiella element för att ge ett projekt rätt förutsättningar. / Our thesis has been performed in the company of Electrolux Laundry Systems (ELS) logistics department, Logistics Center Ljungby (LCL). Over the past year, the company has met setbacks during an IT/IS-project in the logistics department (LCL). The essay is thus aimed to describe and analyze why the IT/IS-project have stagnated. To achieve the purpose of the study we have applied a mainly qualitative approach in which the primary data is collected through methods such as interviews and participant observations while the secondary data is obtained by means of litterature and public documents.   The study’s result consisted of participant observation at LCL, and interviews with co-workers at various levels in the organization. These have shown a lack of communication between employees at different levels in the company. Moreover, the result proved the company's shortcomings in designing the pilot study, e.g. deeply root the project, planning time, resources, costs and specify requirements. Our conclusions from this study are that effective communication between different levels of employees, and an accurately performed pilot study, are essential elements to give a project the right conditions.

Este trabalho descreve a definição e institucionalização de um processo de engenharia de requisitos que está em conformidade com as áreas de processo do CMMI (Capability Maturity Model) de Gerência de Requisitos e Desenvolvimento de Requisitos e cujos componentes (atividades, papéis, produtos de trabalho) são baseados em RUP (Rational Unified Process). A principal contribuição deste estudo é a definição de um processo de engenharia de requisitos baseado em abordagens de desenvolvimento diferenciadas, que foi implantado em uma organização específica, com foco em praticidade, eficiência e retorno do investimento. A implantação do processo em projetos reais permitiu sua experimentação, avaliação e refinamento, validando as alternativas de integração utilizadas para empregar as abordagens de desenvolvimento escolhidas. Complementando o processo proposto, como decorrência do foco em eficiência, são consideradas possibilidades de emprego de práticas de métodos ágeis na execução do processo, com o intuito de aumentar a produtividade do mesmo, sustentando sua garantia de qualidade. O processo proposto é descrito, do método de concepção aos passos envolvidos e artefatos gerados em cada atividade. Também são comentadas as etapas e áreas de trabalho envolvidas na institucionalização do trabalho. / This research depicts the definition and institutionalization of a requirements engineering process which is in conformance to CMMI (Capability Maturity Model) Requirements Management and Requirements Development process areas. The proposed process components (activities, roles, work products) are based on Rational Unified Process (RUP) process framework. The proposed process main contribution is the definition of a requirements engineering process, leveraging such diverse development approaches, which was implemented in a specific organization, focusing on practicality, efficiency and return on investment. Implementing such process in real projects has promoted its experimentation, evaluation and refinement, validating the integration alternatives used to bring together the chosen development approaches. The possibility of employing agile methods practices through the process execution is discussed, aiming at increasing the process productivity, while assuring product quality. The proposed process details are described, from method conception to each activity steps and generated artifacts. The process institutionalization phases and work areas are also commented.

Este trabalho descreve a definição e institucionalização de um processo de engenharia de requisitos que está em conformidade com as áreas de processo do CMMI (Capability Maturity Model) de Gerência de Requisitos e Desenvolvimento de Requisitos e cujos componentes (atividades, papéis, produtos de trabalho) são baseados em RUP (Rational Unified Process). A principal contribuição deste estudo é a definição de um processo de engenharia de requisitos baseado em abordagens de desenvolvimento diferenciadas, que foi implantado em uma organização específica, com foco em praticidade, eficiência e retorno do investimento. A implantação do processo em projetos reais permitiu sua experimentação, avaliação e refinamento, validando as alternativas de integração utilizadas para empregar as abordagens de desenvolvimento escolhidas. Complementando o processo proposto, como decorrência do foco em eficiência, são consideradas possibilidades de emprego de práticas de métodos ágeis na execução do processo, com o intuito de aumentar a produtividade do mesmo, sustentando sua garantia de qualidade. O processo proposto é descrito, do método de concepção aos passos envolvidos e artefatos gerados em cada atividade. Também são comentadas as etapas e áreas de trabalho envolvidas na institucionalização do trabalho. / This research depicts the definition and institutionalization of a requirements engineering process which is in conformance to CMMI (Capability Maturity Model) Requirements Management and Requirements Development process areas. The proposed process components (activities, roles, work products) are based on Rational Unified Process (RUP) process framework. The proposed process main contribution is the definition of a requirements engineering process, leveraging such diverse development approaches, which was implemented in a specific organization, focusing on practicality, efficiency and return on investment. Implementing such process in real projects has promoted its experimentation, evaluation and refinement, validating the integration alternatives used to bring together the chosen development approaches. The possibility of employing agile methods practices through the process execution is discussed, aiming at increasing the process productivity, while assuring product quality. The proposed process details are described, from method conception to each activity steps and generated artifacts. The process institutionalization phases and work areas are also commented.