Journal of Health Informatics in Developing Countries, Mar 2, 2015
This paper identified what should be architectural quality attributes for health information syst... more This paper identified what should be architectural quality attributes for health information system (HIS) architectural evaluation. It raises awareness of the importance of stakeholders in the architecture process. This was with a view to ensuring that HIS follow a specific architecture for the quality to be determined exactly at all times. ATAM was used to validate the analysis using the architecture of the Made in Nigeria Primary Healthcare Information System (MINPHIS). The paper demonstrates the applicability and usefulness of architectural evaluation in HIS context. The analysis with ATAM showed the generation of quality attributes utility tree, priorities, the scenarios, sensitivity points, risks involved and its benefits towards healthcare system. Evaluating the system showed that the database system needs to be migrated from hierarchical to relational structure. By implication, the evaluation is useful for quality improvement in the earlier stages of HIS development, which supposes an indirect impact on patient care.
Journal of Health Informatics in Developing Countries, Mar 16, 2011
Progress of health information system (HIS) in recent years has made significant impact on both d... more Progress of health information system (HIS) in recent years has made significant impact on both developed and developing countries. HIS has played a very important role in the hospital. Construction and employment of HIS can improve the efficiency and quality of healthcare work. But the development of HIS has some problems inherent in them such as non-standard hospital management, poor standardization, and lack of interoperable software development. As a result, HIS run is not able to share medical information and therefore, can't meet the needs of reform in healthcare system delivery. In the future, for the sake of medical information sharing, teleconsulation, hospital efficiency enhancement, all the independent systems will realize interoperability. This paper however, seeks to analyze and address factors militating against interoperability in software systems the healthcare domain and recommends the adoption of service oriented architecture (SOA) within the domain.
International Journal of Innovation and Applied Studies, May 2, 2013
Information and Communication Technologies (ICTs) play significant roles in the improvement of pa... more Information and Communication Technologies (ICTs) play significant roles in the improvement of patient care and the reduction of healthcare cost by facilitating the seamless exchange of vital information among healthcare providers. Thus, clinicians can have easy access to patients' information in a timely manner, medical errors are reduced, and health related records are easily integrated. However, as beneficial as data interoperability is to healthcare, at present, it is largely an unreached goal. This is chiefly because electronic Health Information Systems used within the healthcare organizations have been developed independently with diverse and heterogeneous ICT tools, methods, processes and procedures which result in a large number of heterogeneous and distributed proprietary models for representing and recording patients' information. Consequently, the seamless, effective and meaningful exchange of patients' information is yet to be achieved across healthcare systems. This paper therefore appraises the concepts of interoperability in the context of healthcare, its benefits and its attendant challenges. The paper suggests that the adoption of a standardized healthcare terminology, education strategy, design of useable interfaces for ICT tools, privacy and security issues as well as the connection of legacy systems to the health network are ways of achieving complete interoperability of electronic based Health Information Systems in healthcare.
International Journal of Information Technology and Computer Science, May 2, 2012
Highly-available and scalable software systems can be a complex and expensive proposition. Tradit... more Highly-available and scalable software systems can be a complex and expensive proposition. Traditional scalable software architectures have not only needed to implement complex solutions to ensure high levels of reliability, but have also required an accurate forecast of traffic to provide a high level of customer service. This traditional software architecture is built around a common three-tier web application model that separates the architecture into presentation, business logic and database layers. This architecture has already been designed to scale out by adding additional hosts at these layers and has built-in performance, failover and availability features. Even with all these developments in architectural designs, some software still lacks in scalability, reliability and efficiency. This paper therefore examines the shortfalls of traditional software architectural problems with a view to addressing them using the cloud computing approach.
As a communication vehicle among stakeholders, software architecture gives the entire view of the... more As a communication vehicle among stakeholders, software architecture gives the entire view of the system’s major components, the behaviour of those components as visible to the rest of the system, and the ways in which these components interact and coordinate to achieve the system’s goal. The architecture determines the non-functional attributes of software systems that are built into quality models. In this paper we consider the performance attribute of a system. Most performance quality models have been developed and proved quantitatively. This paper approaches performance issues qualitatively using a proposed developed performance quality model called Software Architecture Scenario-Based Performance Quality Model (SASPUM). The validity of the model characterized into three categories: stimuli, architectural decisions, and responses, can be tested on any existing software architecture using the performance Assessment of Software Architecture (PASA) and the Architecture Trade-off A...
This work is an implementation of a multifactor authentication SMS based result checking system. ... more This work is an implementation of a multifactor authentication SMS based result checking system. The objectives of this work were to improve on the available authentication methods and apply it on examination result checking system. The work takes care of only course codes with their grades, the current GPA and the overall CGPA. It employs the Pull SMS service, built on an independent service and a modem. Examination results consist of sensitive information, hence the need to further enhance the ones already in place so as to ensure further privacy and integrity, In the course of this project, the following assumptions were made: That a system that does the computation of students' result, calculate of GPA and CGPA is already in place. The implemented system was connected to the database of the existing system. A database that contains the bio-data of each student admitted exists. That SMTP (Simple Mail Transport Protocol) modem exists and should have been used but to reduce cos...
Software architecture is the master plan of every reliable software system. It is the building bl... more Software architecture is the master plan of every reliable software system. It is the building block of any kind of software system which greatly determines the success of the system. This paper argues that every system needs a good architecture and that requires the use of good architecture engineering practices in a software development process. The paper recognized software architecture practice as a discipline pervading all phases of software development and then identifies some of the pertinent areas where architectural practice can be used based on a framework. In addition a model showing how software architecture fits into the phases of a generic software development process lifecycle was presented. The model is to enable software developers and acquirers to use effective software architecture practices during software development in order to exert significantly greater control over software product qualities.
Progress of health information system (HIS) in recent years has made significant impact on both d... more Progress of health information system (HIS) in recent years has made significant impact on both developed and developing countries. HIS has played a very important role in the hospital. Construction and employment of HIS can improve the efficiency and quality of healthcare work. But the development of HIS has some problems inherent in them such as non-standard hospital management, poor standardization, and lack of interoperable software development. As a result, HIS run is not able to share medical information and therefore, can't meet the needs of reform in healthcare system delivery. In the future, for the sake of medical information sharing, teleconsulation, hospital efficiency enhancement, all the independent systems will realize interoperability. This paper however, seeks to analyze and address factors militating against interoperability in software systems the healthcare domain and recommends the adoption of service oriented architecture (SOA) within the domain.
International Journal of Information Technology and Computer Science, 2014
Requirements engineering (RE) addresses the first software development step and lays the foundati... more Requirements engineering (RE) addresses the first software development step and lays the foundation for a successful system. Consequently, ability to identify problems and suggestions for improvements in the RE process opens up significant potential for increasing the success of software projects. Since RE process is naturally collaborative in nature, the intensiveness from both knowledge and human perspectives opens up the problem of decision making on requirements that can be facilitated by requirements prioritisation. In this regard, the paper opined the need for requirements prioritization techniques that will help the developers to obtain consensus among stakeholders using a suitable technique. In particular, the paper proposed a RE process model using Delphi technique. The Delphi technique was suggested in this paper to facilitate and enhance the process of requirements prioritisation in a multilevel prioritisation dimension. Therefore, the proposed model on implementation will contribute to the formulation of an interactive framework for requirements prioritisation to produce a requirement ordering which complies with the existing priorities.
International Journal of Computer Applications, 2014
Requirements engineering (RE) involves understanding the needs of stakeholders, the contexts in w... more Requirements engineering (RE) involves understanding the needs of stakeholders, the contexts in which the to-bedeveloped software will be used; analysing, negotiating, and documenting the stakeholders' requirements; and managing requirement evolution. This is achieved through a process called requirement engineering process. Therefore, the ability to improve software products in order to meet the needs of these stakeholders within today's challenging and fast-paced environment is a great concern in the software development industries. This paper is aimed at presenting an enhanced framework for reasoning about RE process in terms of skill enhancement within the scope of software engineering (SE) and information system development (ISD) using the health information system (HIS) as an example to conceptualize the idea. The paper justifies requirement engineering as a process like all other SE and ISD activities to be adapted to the needs of the processes, the products, the projects and the people doing the work in a conceptual framework for quality improvement. The paper conceptualized this by considering the university as the domain where information system, software system, and healthcare research is carried out for knowledge acquisition that proffers solutions to the software organisations where skills are enhanced. This is with the view to improve the customer organisations where the products, processes and services are used. The framework strive to suggest the enhancement of RE process skills to what the stakeholders wants, which serve to establish a solid foundation for the design and construction of what the stakeholders' gets. As such, a framework to enhance the ability to develop software products for the healthcare domain with the aim of meeting the needs of all system stakeholders and to ensure that the development process is going on the right tract is very important.
International Journal of Information Technology and Computer Science, 2012
Highly-available and scalable software systems can be a complex and expensive proposition. Tradit... more Highly-available and scalable software systems can be a complex and expensive proposition. Traditional scalable software architectures have not only needed to implement complex solutions to ensure high levels of reliability, but have also required an accurate forecast of traffic to provide a high level of customer service. This traditional software architecture is built around a common three-tier web application model that separates the architecture into presentation, business logic and database layers. This architecture has already been designed to scale out by adding additional hosts at these layers and has built-in performance, failover and availability features. Even with all these developments in architectural designs, some software still lacks in scalability, reliability and efficiency. This paper therefore examines the shortfalls of traditional software architectural problems with a view to addressing them using the cloud computing approach.
International Journal of Computer Applications, 2012
The healthcare domain is a complex domain which lacks a unified terminological set, most especial... more The healthcare domain is a complex domain which lacks a unified terminological set, most especially in clinical cases. As a result of this, the messaging standards employed in the healthcare domain use different terms for the same concept which often results in clinical misinterpretation, knowledge mismanagement, misdiagnosis of the patient's illness or even death. Consequently, the healthcare system is characterized by high error rate and semantic heterogeneity. A lot of efforts have been made to resolve this problem through the use of standards, clinical terminologies, web services as well as the use of achetype. However, these solutions have proved unsuccessful in resolving semantic heterogeneity in healthcare. Ontologies have also been developed to resolve this problem by making explicit the meaning of terms used in healthcare. Ontologies provide a source of shared and precisely defined terms, resulting in interoperability by knowledge sharing and reuse. Unfortunately, the variety of ways that the healthcare domain is conceptualized results in the creation of different ontologies with contradicting or overlapping parts. Thus, the available ontologies also introduce semantic heterogeneity to this domain. An effective solution to this problem is the introduction of methods for finding matches among the various components of ontologies in healthcare in order to facilitate semantic interoperability. Therefore, this paper aims at examining the various attempts for achieving semantic interoperability in healthcare and also motivates the critical needs for ontology matching in healthcare systems.
Journal of Software Engineering and Applications, 2010
Before Information Systems are developed, they must have undergone a process called Systems Devel... more Before Information Systems are developed, they must have undergone a process called Systems Development Life Cycle (SDLC) using appropriate methodology. The SDLC consists of phases varying from author to author. However, an information systems project can only be successful with intense interaction amongst project manager, systems analyst, system designers and the end users. Viewed from the project manager's perspective, the SDLC lacks the essence of project management activities. Similarly, end users involvement is not clearly specified. The main aim of this paper is to propose a framework for information systems management and development process which accommodates the views of the different participants. Furthermore, the paper sharpens the concept of conventional SDLC, on the basis of the proposed framework. In addition, tools and methods that are appropriate for the implementation of the framework are herein discussed.
Journal of Software Engineering and Applications, 2010
The foundation for any software system is its architecture. Software architecture is a view of th... more The foundation for any software system is its architecture. Software architecture is a view of the system that includes the system's major components, the behaviour of those components as visible to the rest of the system, and the ways in which the components interact and coordinate to achieve the overall system's goal. Every efficient software system arises as a result of sound architectural basement. This requires the use of good architecture engineering practices and methods. This paper recognizes software architecture practice as a discipline pervading all phases of software development and also presents an enhanced model for software engineering process which provides an avenue for speedy, efficient and timely delivery of software products to their intended users. The integration of software architecture into the phases of software development process in a generic software life cycle is also contained in this research report. This is to enable software engineers and system analysts to use effective software architecture practices and to employ appropriate methodology during the software engineering process. Solution Bad solution Figure 3. Enhanced model.
Software architecture evaluation plays an important role in the validation of quality models of s... more Software architecture evaluation plays an important role in the validation of quality models of software systems. This paper is based on the research carried out where the Architecture Trade-off Analysis Method (ATAM) was used. ATAM was chosen and used because it provides insight into the way quality attributes are mapped onto architecture and also shows the trade-offs existing between the identified quality and others. The evaluation was based on the developed Software Architecture Scenario-Based Performance Quality Model (SASPUM). The paper presents the results of the analysis with ATAM by providing the set of scenarios and their prioritization from brainstorming, the utility tree, the risks discovered and non-risk documented; the sensitivity points and trade-off points found. The evaluation supports the fact that performance can be identified as a software quality attribute, which is part of the execution model of software system determined by the architecture of the software system, and that is suitable for software architectural evaluation.
Journal of Health Informatics in Developing Countries, Mar 2, 2015
This paper identified what should be architectural quality attributes for health information syst... more This paper identified what should be architectural quality attributes for health information system (HIS) architectural evaluation. It raises awareness of the importance of stakeholders in the architecture process. This was with a view to ensuring that HIS follow a specific architecture for the quality to be determined exactly at all times. ATAM was used to validate the analysis using the architecture of the Made in Nigeria Primary Healthcare Information System (MINPHIS). The paper demonstrates the applicability and usefulness of architectural evaluation in HIS context. The analysis with ATAM showed the generation of quality attributes utility tree, priorities, the scenarios, sensitivity points, risks involved and its benefits towards healthcare system. Evaluating the system showed that the database system needs to be migrated from hierarchical to relational structure. By implication, the evaluation is useful for quality improvement in the earlier stages of HIS development, which supposes an indirect impact on patient care.
Journal of Health Informatics in Developing Countries, Mar 16, 2011
Progress of health information system (HIS) in recent years has made significant impact on both d... more Progress of health information system (HIS) in recent years has made significant impact on both developed and developing countries. HIS has played a very important role in the hospital. Construction and employment of HIS can improve the efficiency and quality of healthcare work. But the development of HIS has some problems inherent in them such as non-standard hospital management, poor standardization, and lack of interoperable software development. As a result, HIS run is not able to share medical information and therefore, can't meet the needs of reform in healthcare system delivery. In the future, for the sake of medical information sharing, teleconsulation, hospital efficiency enhancement, all the independent systems will realize interoperability. This paper however, seeks to analyze and address factors militating against interoperability in software systems the healthcare domain and recommends the adoption of service oriented architecture (SOA) within the domain.
International Journal of Innovation and Applied Studies, May 2, 2013
Information and Communication Technologies (ICTs) play significant roles in the improvement of pa... more Information and Communication Technologies (ICTs) play significant roles in the improvement of patient care and the reduction of healthcare cost by facilitating the seamless exchange of vital information among healthcare providers. Thus, clinicians can have easy access to patients' information in a timely manner, medical errors are reduced, and health related records are easily integrated. However, as beneficial as data interoperability is to healthcare, at present, it is largely an unreached goal. This is chiefly because electronic Health Information Systems used within the healthcare organizations have been developed independently with diverse and heterogeneous ICT tools, methods, processes and procedures which result in a large number of heterogeneous and distributed proprietary models for representing and recording patients' information. Consequently, the seamless, effective and meaningful exchange of patients' information is yet to be achieved across healthcare systems. This paper therefore appraises the concepts of interoperability in the context of healthcare, its benefits and its attendant challenges. The paper suggests that the adoption of a standardized healthcare terminology, education strategy, design of useable interfaces for ICT tools, privacy and security issues as well as the connection of legacy systems to the health network are ways of achieving complete interoperability of electronic based Health Information Systems in healthcare.
International Journal of Information Technology and Computer Science, May 2, 2012
Highly-available and scalable software systems can be a complex and expensive proposition. Tradit... more Highly-available and scalable software systems can be a complex and expensive proposition. Traditional scalable software architectures have not only needed to implement complex solutions to ensure high levels of reliability, but have also required an accurate forecast of traffic to provide a high level of customer service. This traditional software architecture is built around a common three-tier web application model that separates the architecture into presentation, business logic and database layers. This architecture has already been designed to scale out by adding additional hosts at these layers and has built-in performance, failover and availability features. Even with all these developments in architectural designs, some software still lacks in scalability, reliability and efficiency. This paper therefore examines the shortfalls of traditional software architectural problems with a view to addressing them using the cloud computing approach.
As a communication vehicle among stakeholders, software architecture gives the entire view of the... more As a communication vehicle among stakeholders, software architecture gives the entire view of the system’s major components, the behaviour of those components as visible to the rest of the system, and the ways in which these components interact and coordinate to achieve the system’s goal. The architecture determines the non-functional attributes of software systems that are built into quality models. In this paper we consider the performance attribute of a system. Most performance quality models have been developed and proved quantitatively. This paper approaches performance issues qualitatively using a proposed developed performance quality model called Software Architecture Scenario-Based Performance Quality Model (SASPUM). The validity of the model characterized into three categories: stimuli, architectural decisions, and responses, can be tested on any existing software architecture using the performance Assessment of Software Architecture (PASA) and the Architecture Trade-off A...
This work is an implementation of a multifactor authentication SMS based result checking system. ... more This work is an implementation of a multifactor authentication SMS based result checking system. The objectives of this work were to improve on the available authentication methods and apply it on examination result checking system. The work takes care of only course codes with their grades, the current GPA and the overall CGPA. It employs the Pull SMS service, built on an independent service and a modem. Examination results consist of sensitive information, hence the need to further enhance the ones already in place so as to ensure further privacy and integrity, In the course of this project, the following assumptions were made: That a system that does the computation of students' result, calculate of GPA and CGPA is already in place. The implemented system was connected to the database of the existing system. A database that contains the bio-data of each student admitted exists. That SMTP (Simple Mail Transport Protocol) modem exists and should have been used but to reduce cos...
Software architecture is the master plan of every reliable software system. It is the building bl... more Software architecture is the master plan of every reliable software system. It is the building block of any kind of software system which greatly determines the success of the system. This paper argues that every system needs a good architecture and that requires the use of good architecture engineering practices in a software development process. The paper recognized software architecture practice as a discipline pervading all phases of software development and then identifies some of the pertinent areas where architectural practice can be used based on a framework. In addition a model showing how software architecture fits into the phases of a generic software development process lifecycle was presented. The model is to enable software developers and acquirers to use effective software architecture practices during software development in order to exert significantly greater control over software product qualities.
Progress of health information system (HIS) in recent years has made significant impact on both d... more Progress of health information system (HIS) in recent years has made significant impact on both developed and developing countries. HIS has played a very important role in the hospital. Construction and employment of HIS can improve the efficiency and quality of healthcare work. But the development of HIS has some problems inherent in them such as non-standard hospital management, poor standardization, and lack of interoperable software development. As a result, HIS run is not able to share medical information and therefore, can't meet the needs of reform in healthcare system delivery. In the future, for the sake of medical information sharing, teleconsulation, hospital efficiency enhancement, all the independent systems will realize interoperability. This paper however, seeks to analyze and address factors militating against interoperability in software systems the healthcare domain and recommends the adoption of service oriented architecture (SOA) within the domain.
International Journal of Information Technology and Computer Science, 2014
Requirements engineering (RE) addresses the first software development step and lays the foundati... more Requirements engineering (RE) addresses the first software development step and lays the foundation for a successful system. Consequently, ability to identify problems and suggestions for improvements in the RE process opens up significant potential for increasing the success of software projects. Since RE process is naturally collaborative in nature, the intensiveness from both knowledge and human perspectives opens up the problem of decision making on requirements that can be facilitated by requirements prioritisation. In this regard, the paper opined the need for requirements prioritization techniques that will help the developers to obtain consensus among stakeholders using a suitable technique. In particular, the paper proposed a RE process model using Delphi technique. The Delphi technique was suggested in this paper to facilitate and enhance the process of requirements prioritisation in a multilevel prioritisation dimension. Therefore, the proposed model on implementation will contribute to the formulation of an interactive framework for requirements prioritisation to produce a requirement ordering which complies with the existing priorities.
International Journal of Computer Applications, 2014
Requirements engineering (RE) involves understanding the needs of stakeholders, the contexts in w... more Requirements engineering (RE) involves understanding the needs of stakeholders, the contexts in which the to-bedeveloped software will be used; analysing, negotiating, and documenting the stakeholders' requirements; and managing requirement evolution. This is achieved through a process called requirement engineering process. Therefore, the ability to improve software products in order to meet the needs of these stakeholders within today's challenging and fast-paced environment is a great concern in the software development industries. This paper is aimed at presenting an enhanced framework for reasoning about RE process in terms of skill enhancement within the scope of software engineering (SE) and information system development (ISD) using the health information system (HIS) as an example to conceptualize the idea. The paper justifies requirement engineering as a process like all other SE and ISD activities to be adapted to the needs of the processes, the products, the projects and the people doing the work in a conceptual framework for quality improvement. The paper conceptualized this by considering the university as the domain where information system, software system, and healthcare research is carried out for knowledge acquisition that proffers solutions to the software organisations where skills are enhanced. This is with the view to improve the customer organisations where the products, processes and services are used. The framework strive to suggest the enhancement of RE process skills to what the stakeholders wants, which serve to establish a solid foundation for the design and construction of what the stakeholders' gets. As such, a framework to enhance the ability to develop software products for the healthcare domain with the aim of meeting the needs of all system stakeholders and to ensure that the development process is going on the right tract is very important.
International Journal of Information Technology and Computer Science, 2012
Highly-available and scalable software systems can be a complex and expensive proposition. Tradit... more Highly-available and scalable software systems can be a complex and expensive proposition. Traditional scalable software architectures have not only needed to implement complex solutions to ensure high levels of reliability, but have also required an accurate forecast of traffic to provide a high level of customer service. This traditional software architecture is built around a common three-tier web application model that separates the architecture into presentation, business logic and database layers. This architecture has already been designed to scale out by adding additional hosts at these layers and has built-in performance, failover and availability features. Even with all these developments in architectural designs, some software still lacks in scalability, reliability and efficiency. This paper therefore examines the shortfalls of traditional software architectural problems with a view to addressing them using the cloud computing approach.
International Journal of Computer Applications, 2012
The healthcare domain is a complex domain which lacks a unified terminological set, most especial... more The healthcare domain is a complex domain which lacks a unified terminological set, most especially in clinical cases. As a result of this, the messaging standards employed in the healthcare domain use different terms for the same concept which often results in clinical misinterpretation, knowledge mismanagement, misdiagnosis of the patient's illness or even death. Consequently, the healthcare system is characterized by high error rate and semantic heterogeneity. A lot of efforts have been made to resolve this problem through the use of standards, clinical terminologies, web services as well as the use of achetype. However, these solutions have proved unsuccessful in resolving semantic heterogeneity in healthcare. Ontologies have also been developed to resolve this problem by making explicit the meaning of terms used in healthcare. Ontologies provide a source of shared and precisely defined terms, resulting in interoperability by knowledge sharing and reuse. Unfortunately, the variety of ways that the healthcare domain is conceptualized results in the creation of different ontologies with contradicting or overlapping parts. Thus, the available ontologies also introduce semantic heterogeneity to this domain. An effective solution to this problem is the introduction of methods for finding matches among the various components of ontologies in healthcare in order to facilitate semantic interoperability. Therefore, this paper aims at examining the various attempts for achieving semantic interoperability in healthcare and also motivates the critical needs for ontology matching in healthcare systems.
Journal of Software Engineering and Applications, 2010
Before Information Systems are developed, they must have undergone a process called Systems Devel... more Before Information Systems are developed, they must have undergone a process called Systems Development Life Cycle (SDLC) using appropriate methodology. The SDLC consists of phases varying from author to author. However, an information systems project can only be successful with intense interaction amongst project manager, systems analyst, system designers and the end users. Viewed from the project manager's perspective, the SDLC lacks the essence of project management activities. Similarly, end users involvement is not clearly specified. The main aim of this paper is to propose a framework for information systems management and development process which accommodates the views of the different participants. Furthermore, the paper sharpens the concept of conventional SDLC, on the basis of the proposed framework. In addition, tools and methods that are appropriate for the implementation of the framework are herein discussed.
Journal of Software Engineering and Applications, 2010
The foundation for any software system is its architecture. Software architecture is a view of th... more The foundation for any software system is its architecture. Software architecture is a view of the system that includes the system's major components, the behaviour of those components as visible to the rest of the system, and the ways in which the components interact and coordinate to achieve the overall system's goal. Every efficient software system arises as a result of sound architectural basement. This requires the use of good architecture engineering practices and methods. This paper recognizes software architecture practice as a discipline pervading all phases of software development and also presents an enhanced model for software engineering process which provides an avenue for speedy, efficient and timely delivery of software products to their intended users. The integration of software architecture into the phases of software development process in a generic software life cycle is also contained in this research report. This is to enable software engineers and system analysts to use effective software architecture practices and to employ appropriate methodology during the software engineering process. Solution Bad solution Figure 3. Enhanced model.
Software architecture evaluation plays an important role in the validation of quality models of s... more Software architecture evaluation plays an important role in the validation of quality models of software systems. This paper is based on the research carried out where the Architecture Trade-off Analysis Method (ATAM) was used. ATAM was chosen and used because it provides insight into the way quality attributes are mapped onto architecture and also shows the trade-offs existing between the identified quality and others. The evaluation was based on the developed Software Architecture Scenario-Based Performance Quality Model (SASPUM). The paper presents the results of the analysis with ATAM by providing the set of scenarios and their prioritization from brainstorming, the utility tree, the risks discovered and non-risk documented; the sensitivity points and trade-off points found. The evaluation supports the fact that performance can be identified as a software quality attribute, which is part of the execution model of software system determined by the architecture of the software system, and that is suitable for software architectural evaluation.
Uploads
Papers by Ishaya Gambo