Performance Evaluation and Prediction for Legacy Information Systems

2007 ◽  
Author(s):  
Yan Jin ◽  
Antony Tang ◽  
Jun Han ◽  
Yan Liu
Keyword(s):  
Performance Evaluation ◽  
Information Systems ◽  
Legacy Information Systems

scholarly journals Selective Service Provenance in the VRESCo Runtime

2012 ◽  
pp. 372-394
Author(s):  
Anton Michlmayr ◽  
Florian Rosenberg ◽  
Philipp Leitner ◽  
Schahram Dustdar
Keyword(s):  
Performance Evaluation ◽  
Information Systems ◽  
Web Service ◽  
Scientific Workflows ◽  
Data Provenance ◽  
Provenance Information ◽  
Selective Service ◽  
Runtime Environment ◽  
Service Oriented ◽  
History Of

In general, provenance describes the origin and well-documented history of a given object. This notion has been applied in information systems, mainly to provide data provenance of scientific workflows. Similar to this, provenance in Service-oriented Computing has also focused on data provenance. However, the authors argue that in service-centric systems the origin and history of services is equally important. This paper presents an approach that addresses service provenance. The authors show how service provenance information can be collected and retrieved, and how security mechanisms guarantee integrity and access to this information, while also providing user-specific views on provenance. Finally, the paper gives a performance evaluation of the authors’ approach, which has been integrated into the VRESCo Web service runtime environment.

scholarly journals Modernization Framework to Enhance the Security of Legacy Information Systems

2022 ◽  
Vol 32 (1) ◽  
pp. 543-555
Author(s):  
Musawwer Khan ◽  
Islam Ali ◽  
Wasif Nisar ◽  
Muhammad Qaiser Saleem ◽  
Ali S. Ahmed ◽  
...  
Keyword(s):  
Information Systems ◽  
Legacy Information Systems

Architecture-Driven Modernization

2011 ◽  
pp. 75-103 ◽  
Author(s):  
Ricardo Pérez-Castillo ◽  
Ignacio García Rodríguez de Guzmán ◽  
Mario Piattini
Keyword(s):  
Information Systems ◽  
Ad Hoc ◽  
Model Driven ◽  
Success Stories ◽  
Business Knowledge ◽  
Important Solution ◽  
Principles And Standards ◽  
Software Modernization ◽  
The One ◽  
Legacy Information Systems

Legacy information systems can be a serious headache for companies because, on the one hand, these systems cannot be thrown away since they store a lot of valuable business knowledge over time, and on the other hand, they cannot be maintained easily at an acceptable cost. For many years, reengineering has been a solution to this problem because it facilitates the reuse of the software artifacts and knowledge embedded in the system. However, reengineering often fails due to the fact that it carries out non-standardized and ad hoc processes. Currently, software modernization, and particularly ADM (Architecture-Driven Modernization), standardized by the OMG, is proving to be an important solution to that problem, since ADM advocates carrying out reengineering processes taking into account the principles and standards of model-driven development. This chapter provides an overview of ADM and shows how it allows legacy information systems to evolve, making them more agile, preserving the embedded business knowledge, and reducing maintenance costs. Also, this chapter presents the software archeology process using ADM and some ADM success stories.

An Analytical Employee Performance Evaluation Approach in Office Automation and Information Systems

2017 ◽  
pp. 324-343
Author(s):  
Maryam Kalhori ◽  
Mohammad Javad Kargar
Keyword(s):  
Performance Evaluation ◽  
Information Systems ◽  
Resource Management ◽  
Human Resource Management ◽  
Human Resource ◽  
Evaluation System ◽  
Employee Performance ◽  
Office Automation ◽  
Performance Evaluation System ◽  
Evaluation Approach

With the extension of information technology, human resource management has experienced fundamental changes. One of the most important issues in human resource management is performance evaluation. Unlike number of studies in employee performance evaluation, there is a lack for systematic and quantitative approaches. Issues such as incomplete information, subjective and qualitative metrics, and also the difficulty of evaluating the performance are the main problems of this field. Hence, the current study exploits the capabilities of information systems and presents an approach for quantitative and automatic evaluation of employee performance in office automation systems. The results reveal the automatic employee performance evaluation system is a discrete dimension for employee performance evaluation systems.

Mediation and Ontology-Based Framework for Interoperability

2009 ◽  
pp. 491-507 ◽  
Author(s):  
Leonid Stoimenov
Keyword(s):  
Information Systems ◽  
Power Supply ◽  
Local Community ◽  
Legacy Systems ◽  
End User ◽  
Community Environment ◽  
Gis Applications ◽  
Database Technology ◽  
Legacy Information Systems ◽  
Available Information

Research in information systems interoperability is motivated by the ever-increasing heterogeneity of the computer world. New generations of applications, such as geographic information systems (GISs), have much more demands in comparison to possibilities of legacy information systems and traditional database technology. The popularity of GIS in governmental and municipality institutions induce increasing amounts of available information (Stoimenov, Ðordevic-Kajan, & Stojanovic, 2000). In a local community environment (city services, local offices, local telecom, public utilities, water and power supply services, etc.), different information systems deal with huge amounts of available information, where most data in databases are geo-referenced. GIS applications often have to process geo-data obtained from various geo-information communities. Also, information that exists in different spatial database may be useful for many other GIS applications. Numerous legacy systems should be coupled with GIS systems, which present additional difficulties in developing end-user applications.

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