Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 59 for “"Legacy Systems"”.
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Reviewing I.S. : how to handle legacy systems?
Thesis: S.M.M.O.T., Massachusetts Institute of Technology, Sloan School of Management, Management of Technology Program, 1999
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Co-Evolution of Source Code and the Build System: Impact on the Introduction of AOSD in Legacy Systems
… demand ever more advanced features, software systems have to keep on evolving. In practice, this means that software developers need to adapt the description of a software application. Such a description not only consists of source code written down in a programming language, as a lot of …
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An agent-based service-oriented approach to evolving legacy software systems into a pervasive computing environment.
… Service-Oriented approach to evolving legacy system into a Pervasive Computing environment. The methodology consists of multiple phases: using reverse engineering techniques to comprehend and decompose legacy systems, employing XML and Web Services to transform and represent a legacy …
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Evolution of batch-oriented COBOL systems into object-oriented systems through unified modelling language.
Throughout the world, there are many legacy systems that fulfil critical business functions but often require new functionality to comply with new business rules or require redeployment to another platform. Legacy systems vary tremendously in size, functionality, type (such as batch-oriented or …
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Model driven software modernisation
… relegate more and more existing software to legacy status. Generating software through reusing legacy systems has been a primary solution and software re-engineering has the potential to improve software productivity and quality across the entire software life cycle. The classical …
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A Conceptual Framework for Analysis of System Safety Interoperability of United States Navy's Combat Systems
… military reality requires the optimal use of our legacy systems. The objective is to maximize the effectiveness of our operations by efficient allocation, placement and the use of our forces and war-fighting systems. The synergism drawn from the capabilities of the legacy complex systems enables …
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A systems architecture-based approach to assess candidate upgrades to complex systems
… for assessing compatibility between parent systems and child subsystems is proposed and applied to several cases where subsystems are being replaced in legacy systems. CAM is a screening process intended to be used by project managers who need to replace components of complex systems. The …
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Application of Model-Based Systems Engineering (MBSE) to compare legacy and future forces in Mine Warfare (MIW) missions
… deck (LHD) support ship, and MH-53E helicopter legacy systems and Increment 1 of the littoral combat ship (LCS) and MH-60S helicopter future systems. The study focused on two measures of effec-tiveness (MOEs): area coverage rate sustained (ACRS) and percent clearance of mines. The systems …
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An ontology-based reengineering methodology for service orientation
… be designed and integrated with other software systems. Web services, together with service-oriented architectures, are promising integration technology to facilitate legacy system Webification. However, since most components in a legacy system were not designed and developed as services, the …
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Automated Conversion of Structured Fortran 77 Ccode Into Object-Oriented C++ Code
The maintenance of legacy software systems that were developed using a procedural design approach is becoming increasingly expensive. The procedural approach is often ill suited for complex systems that need to integrate with other codes. Furthermore, these legacy systems are usually written in …
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Digital Government Systems: Tackling The Legacy Problem Through A Game-Based Approach To Business Requirements Analysis
Government agency reliance on legacy systems is problematic: they are costly to maintain, difficult to integrate with and they hinder innovation. However, the replacement of legacy systems is not a straightforward endeavor, and it often results in technology substitution that is not accompanied by …
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Component-based software engineering
… technology, the migration and integration of legacy systems, most of which are non-component-based systems, to the component-based software systems are studied. A framework and several methodologies are developed to serve as the guidelines of adopting component technology in legacy systems. …
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Investigating failure to implement contactless payments: a case of Near Field Communication payment systems in South Africa
… Field Communication (NFC) contactless payment systems are being touted as the future for retail payments and public transport fare-collection systems. Studies have shown that such initiatives require many organisations from different industries to work together for the goal to be realised. The …
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Software Renovation: An In-house Perspective with Case Studies
… To mitigate the risks associated with these legacy systems, software renovation can be undertaken. Software renovation can be described as a series of processes and/or tools used to modernize a legacy system, thereby preserving and maintaining the investment it represents while decreasing the …
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Evaluation and Implementation of Augmented Reality for Aerospace Operations and Sustainment
… standards in addition to being compatible with legacy systems. This thesis defines a collaborative framework for successful augmented reality technology development and implementation, including a process to identify a use case, define requirements, and evaluate existing commercial off-the-shelf …
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Government Open Systems Interconnection Profile (GOSIP) transition strategy
This thesis analyzes the Government Open Systems Interconnection Profile (GOSIP) and the requirements of the Federal Information Processing Standard (FIPS) Publication 146-1. It begins by examining the International Organization for Standardization (ISO) Open Systems Interconnection (OSI) …
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Medical informatics : the generic interchange of comprehensive health data
… in turn led on to the consideration of data in legacy systems. Finally, an evaluation of the developed method was undertaken.
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A holistic method for improving software product and process quality
… difficult to measure. Deficient software systems regularly result in failures which often lead to significant financial losses but more importantly to loss of human lives. Such systems need to be either scrapped and replaced by new ones or corrected/improved through maintenance. One of the …
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Predictive analytics for maintenance activities in nuclear power plants: a feasibility study
Nuclear power plants are known for their use of legacy systems and processes. As plants age, the amount of maintenance increases while resources remain finite, leading to unwanted delays, affecting the health of assets and increasing costs. To aid in the modernization and digitization of nuclear …
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Just-in-time hypermedia
Many analytical applications, especially legacy systems, create documents and display screens in response to user queries "dynamically" or in real time . These documents and displays do not exist in advance, and thus hypermedia must be generated 'just in time" -automatically and dynamically. This …
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