legacy systems
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2022 ◽  
Vol 12 (2) ◽  
pp. 667
Author(s):  
Mehrzad Lavassani ◽  
Johan Åkerberg ◽  
Mats Björkman

The industrial network infrastructures are transforming to a horizontal architecture to enable data availability for advanced applications and enhance flexibility for integrating new technologies. The uninterrupted operation of the legacy systems needs to be ensured by safeguarding their requirements in network configuration and resource management. Network traffic modeling is essential in understanding the ongoing communication for resource estimation and configuration management. The presented work proposes a two-step approach for modeling aggregated traffic classes of brownfield installation. It first detects the repeated work-cycles and then aims to identify the operational states to profile their characteristics. The performance and influence of the approach are evaluated and validated in two experimental setups with data collected from an industrial plant in operation. The comparative results show that the proposed method successfully captures the temporal and spatial dynamics of the network traffic for characterization of various communication states in the operational work-cycles.


Author(s):  
Алексей Геннадьевич Массель ◽  
Тимур Габилович Мамедов

В статье рассматривается адаптация методики реинжиниринга унаследованных систем. Приводится обзор подходов к реинжинирингу. Несмотря на то, что термин «реинжиниринг» в первую очередь относится к изменению бизнес процессов, он удачно подходит и к модернизации программного обеспечения. Обосновывается необходимость адаптации методики. В статье описывается применение адаптированной методики на примере реинжиниринга программного комплекса для прогнозных исследований ТЭК. Приведен исторический обзор версий ПК «ИНТЭК» и описаны поэтапно все шаги проведения его реинжиниринга на основе агентно-сервисного подхода The article presents an adaptation of the legacy systems reengineering technique. An overview of approaches to reengineering is given. Although the term “reengineering” primarily refers to changing business processes, it is well suited to software development. The necessity of adapting the method has been substantiated. The article describes the application of the described methodology on the example of software complex reengineering for predictive research of the fuel and energy complex. A historical overview of the current problem is given and all stages of INTEC PC reengineering are described step by step


Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2247
Author(s):  
Lenka Landryová ◽  
Jan Sikora ◽  
Renata Wagnerová

Industrial companies focus on efficiency and cost reduction, which is very closely related to production process safety and secured environments enabling production with reduced risks and minimized cost on machines maintenance. Legacy systems are being replaced with new systems built into distributed production environments and equipped with machine learning algorithms that help to make this change more effective and efficient. A distributed control system consists of several subsystems distributed across areas and sites requiring application interfaces built across a control network. Data acquisition and data processing are challenging processes. This contribution aims to present an approach for the data collection based on features standardized in industry and for data classification processed with an applied machine learning algorithm for distinguishing exceptions in a dataset. Files with classified exceptions can be used to train prediction models to make forecasts in a large amount of data.


2021 ◽  
Author(s):  
◽  
Liang Cao

<p>Purpose – The purpose of this paper is to describe the failure of implementing a managed print solution to control costs and reduce waste associated with outsourcing practices in a complex and legacy environment.  Design/methodology/approach – Project documentation and literature reviews versus interview results by key stakeholders of the project.  Findings – It is found that there are critical successful factors would directly affect the result of a project implementation. Multi-party collaboration is quite challenging to each party, especially the product owner. It needs a strong leader to indicate each party’s responsibility and make sure communication can go through smoothly.  Practical implications – Organizations who have more complex infrastructure and legacy systems would need to take extra care when integrating new systems.  Originality/value – This paper can be used by Tainui or other organization leaders and project managers to be more effectively achieve future project success.  Keywords - Print management, Printers, Waste, Cost saving, IT project, CSF, Multi-party collaboration, Outsourcing  Paper type - Case study</p>


2021 ◽  
Author(s):  
◽  
Liang Cao

<p>Purpose – The purpose of this paper is to describe the failure of implementing a managed print solution to control costs and reduce waste associated with outsourcing practices in a complex and legacy environment.  Design/methodology/approach – Project documentation and literature reviews versus interview results by key stakeholders of the project.  Findings – It is found that there are critical successful factors would directly affect the result of a project implementation. Multi-party collaboration is quite challenging to each party, especially the product owner. It needs a strong leader to indicate each party’s responsibility and make sure communication can go through smoothly.  Practical implications – Organizations who have more complex infrastructure and legacy systems would need to take extra care when integrating new systems.  Originality/value – This paper can be used by Tainui or other organization leaders and project managers to be more effectively achieve future project success.  Keywords - Print management, Printers, Waste, Cost saving, IT project, CSF, Multi-party collaboration, Outsourcing  Paper type - Case study</p>


2021 ◽  
Vol 13 (23) ◽  
pp. 13112
Author(s):  
Humairath Abu Bakar ◽  
Rozilawati Razali ◽  
Dian Indrayani Jambari

Information technology and communication (ICT) plays an important role as a catalyst for organisational development and innovation. However, old information systems that are known as legacy systems often expose organisations to the risk of business failure. These systems are not only impeding the advancement in technology strategy but also hindering the organisations’ business competitiveness. Nevertheless, legacy systems are essential in supporting critical functions in organisations including the public sector and could not be scrapped easily. These systems need to be given a new strength through modernisation to continue providing the best service in line with global trends. Modernisation is a complex task that involves several related aspects. In the context of the public sector, legacy systems involve a complicated information relationship, environment, and culture, while ensuring the citizens are of high priority. The implementation of a digital government represents the transformation of the public service delivery to the citizens that emphasises a citizen-centric design. This study, therefore, aims to address this concern by reviewing the factors involved and suggesting a guideline in the form of a conceptual model to assist in the modernisation of legacy systems for a citizen-centric digital government. Data from the theoretical study were analysed using content analysis. The results show that the legacy systems’ modernisation comprised four main aspects, namely human, process, product, and organisation aspects, with related factors and elements. This model contributes as a reference for the public sector and provides overall guidance in performing legacy systems modernisation.


2021 ◽  
Vol 6 (2) ◽  
pp. 124-142
Author(s):  
Ashraf Saied Abd El-Naby ◽  
◽  
Yehia M. Helmy ◽  
Emadeldin Helmy Khalil ◽  
◽  
...  

Organizations use heterogonous systems and legacy systems, they are implemented at different platforms, different databases, and different language programs. These systems need to exchange information and reuse the same functionality to achieve integration between these systems. Many Software companies failed to achieve information follow and reuse the same functionality. This paper introduces guidelines introduces Service-Oriented Architecture Principles guidelines and rules to help Applications developers to achieve information integrations and reuse the same functionality, SOA principles providing rules and guidelines that specify exactly how solution logic should be decomposed and molded into technology solutions


2021 ◽  
Vol 01 (01) ◽  
pp. 10-12
Author(s):  
Imesha Vitharanage ◽  
◽  
Amila Thibbotuwawa ◽  

Robotic Process Automation (RPA) is an emerging technology widely used across multiple sectors such as human resources, healthcare, finance, accounting, manufacturing, higher education and supply chain management, etc. RPA, also known as ‘software bots’, replaces manual, rule-based, repetitive tasks humans perform. These software bots are currently in a journey, evolving to be more sophisticated, mimicking human activities and enabling humans to achieve higher-valued tasks. Hence, RPA impacts the overall operational efficiency in organisations through multiple facets by its integration with employees, existing technologies and infrastructure, and business processes. It reduces the burden on IT as it does not disturb the underlying legacy systems. It increases reliability as bots can work 24x7 effectively. It is used as a time and cost reduction technology as it reduces the size of the manual workload. The tasks performed through RPA is accurate as it is less prone to errors. It increases compliances as it follows the rules and keeps audit trails. The productivity rate of organisations increase as the execution time through RPA is faster than tasks being performed by human employees. Furthermore, RPA is introduced as a low code technology that uses drag and drop functionalities with little to no programming knowledge [1].


2021 ◽  
Author(s):  
Thelma Colanzi ◽  
Aline Amaral ◽  
Wesley Assunção ◽  
Arthur Zavadski ◽  
Douglas Tanno ◽  
...  
Keyword(s):  

2021 ◽  
Author(s):  
Ryo Soga ◽  
Genta Koreki ◽  
Hideyuki Kanuka ◽  
Akira Ioku ◽  
Jun Maeoka

Descriptions of program identifiers improve the maintainability of programs. Modern software projects maintain proper descriptions by following coding conventions. However, software projects maintained for a long time have two problems: (i) descriptions at incorrect locations and (ii) no descriptions. We propose the method of generating a identifier dictionary for managing identifiers and their descriptions, which enables developers to refer to identifier descriptions from anywhere within programs. The method involves two steps: (i) extracting identifiers and descriptions from design documents and programs and (ii) generating descriptions using information-retrieval and machine-learning methods. We applied the proposed method to COBOL programs and design documents of a legacy system that has been maintained for over 20 years as a case study. The proposed method obtained the descriptions of 83% of identifiers and reduced the cost of locating files to be modified by enhancing search keywords using the identifier dictionary. This means that the proposed method can improve the maintainability of systems maintained over many years.


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