Migrating Legacy Systems in the Global Merger & Acquisition Environment
2009; Volume: 20; Issue: 3 Linguagem: Inglês
ISSN
2186-3679
AutoresPairin Katerattanakul, Hwee‐Joo Kam, James J. Lee, Soon-Goo Hong,
Tópico(s)Mobile Agent-Based Network Management
Resumo1. INTRODUCTION After the merger and acquisition (MA and (2) develop a global team for supporting the new and centralized system. A new manager--Mr. John Collins, was hired to manage this system migration project. Since this project was entangled with technical complexity and organizational issues, Mr. Collins would have many obstacles to overcome (we disguise the names of the people in this case to protect their identities). 1.1 Definition of Metaframe, a software product developed by Citrix Corporation, allows users to access the applications hosted on servers (running on UNIX or Windows operating systems). All applications are processed on these servers, enabling users with less powerful hardware to use resource intensive applications. Figure 1 shows a centralized structure of a system that includes an Independent Management Architecture datastore (IMA datastore), a Zone Data Collector (ZDC), and several servers. servers run the applications and allow users to access and use these applications. IMA datastore is a database (e.g., Microsoft Access, Microsoft SQL Server, Oracle, IBM DB2) that keeps the information about the configuration of the system. A system could increase its performance by setting up zones that allow geographic sites to operate on their local computer networks and minimize network communication to the IMA datastore. The logical way of establishing zones is to set up one in every operation that has a high number of servers or has a low capacity network connection to the nearest IMA datastore. For each zone, ZDC maintains non-system configuration information such as server loads, active sessions, and disconnected sessions. ZDC also manages the communication within the zone as an individual server will not directly query any other servers. [FIGURE 1 OMITTED] It should be noted that Citrix Corporation had released several versions of its product, beginning with the first release titled WinFrame followed by MetaFrame 1.8 and MetaFrame XP. During this migration project, Citrix Corporation released a new version entitled Server [TM] and also announced that the XP version would be supported until June 30, 2007. Because there was a great deal of expertise on XP and a substantial XP presence within WorldPharma, it was agreed that XP would be implemented during this migration project even though the newer version (i.e., Presentation Server TM) had already been available. Thus, the mentioned in this teaching case would refer to the XP version. Additionally, during the time when this teaching case was written (i.e., on February 11, 2008), Citrix Corporation changed the name of its Server(tm) product line to XenApp [TM]. More detailed information about the product can be found at www.citrix.com.) 1.2 Existing Systems: Pre-M&A Immediately after the M&A, a consolidation plan for various existing systems of the three legacy companies started to unfold. …
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