DTGOV IaaS Migration: Cloud Architectures, Benefits, and Issues

This report examines DTGOV's migration to an Infrastructure-as-a-Service (IaaS) model, focusing on the benefits and challenges of cloud computing. It explores the advantages of IaaS, such as scalability, cost reduction, and ease of management, while also considering potential issues like syncing problems and application compatibility. The report outlines cloud architectures suitable for DTGOV, including load balancing and security management, and discusses the use of Amazon CloudFront and Amazon RDS. Furthermore, it compares IaaS with other cloud models like Software-as-a-Service (SaaS) and Platform-as-a-Service (PaaS), highlighting their differences and applications. The analysis includes references to relevant research and provides insights into the practical implementation and implications of cloud migration for businesses.

DTGOV MIGRATION TO IAAS
IN AWS
NAME OF THE STUDENT
NAME OF THE UNIVERSITY

DTGOV WEB SERVERS IN AN IAAS INSTANCE
• INITIAL WEBSERVER TRIAL
• INVESTMENTS
• EASY CUSTOMER MAINTENANCE
• ON DEMAND FACILITIES

BENEFITS TO THE USERS
• DISTRIBUTED RESOURCES AS A SERVICE
• EXPANSION BENEFITS
• MULTIPLE USE ON SINGLE HARDWARE (LEYMANN ET AL. 2016)
• PROVISION OF ACCESS EVEN WITH THE SERVER DOWN

TYPES OF CLOUD ARCHITECTURES USEFUL FOR
DTGOV
• LOAD BALANCING
• AMAZON CLOUDFRONT
• ELASTIC LOAD BALANCER
• SECURITY MANAGEMENT
• AMAZON RDS (TYAGI, 2017)

BENEFITS AND ISSUES OF OFFICE 365
• BENEFITS
• EASIER TO SCALE THE BUSINESS SERVICES
OVER OFFICE 365
• WORK FROM ANY PLACE AND AT ANY TIME
• EASIER TO COLLABORATE
• REDUCING THE REAL-TIME UPDATES
(MARTIKAINEN, 2018)
• REDUCES THE SEND CAPITALS
• REMOVES THE UTILIZATION OF HARDWARE
• REDUCES THE ENERGY COSTS
• ISSUES
• PROBLEMS BASED ON SYNCING,
IMPLEMENTING ADD-ON
• IMPLEMENTING THE LEGAL SOLUTIONS
• SOME APPLICATIONS WOULD NOT BE
AVAILABLE ON THE CLOUD
• MIGHT NOT DEAL WITH ALL KINDS OF
SUPPORT REQUEST
• BULK FILES IS A CRITICAL ISSUE

MAJOR DIFFERENCES BETWEEN THE MODELS
IAAS, PAAS AND SAAS
• SAAS: MAKES SURE THAT THE USERS ARE CONNECTED TO USE THE CLOUD BASED
APPLICATIONS OVER WEB, THE SOFTWARE DEPLOYMENT AND MANAGEMENT ARE
ASSIGNED TO THIRD PARTY SERVICES AND AVAILABLE ON SUBSCRIPTION BASIS
(MORAVČÍK ET AL., 2017).
• PAAS: OPERATES AT A MUCH LOWER LEVEL OF ABSTRACTION, COMES WITH A
PLATFORM ON WHICH THE SOFTWARE CAN BE CREATED AND LAUNCHED AND
PROVIDES THE USERS WITH A SELF-SERVICE PROVISION FOR THE PROVISION OF A
COMPUTER INFRASTRUCTURE.
• IAAS: AGILE CLOUD COMPUTING MODEL, HELPS IN BUILDING A VIRTUAL DATA
CENTRE WITHIN THE CLOUD ENVIRONMENT WITH VARIOUS RESOURCE CAPABILITIES.

REFERENCES
LEYMANN, F., FEHLING, C., WAGNER, S., & WETTINGER, J. (2016). NATIVE
CLOUD APPLICATIONS.
MARTIKAINEN, T. (2018). MIGRATING MAINFRAME APPLICATIONS TO THE CLOUD.
MORAVČÍK, M., SEGEČ, P., PAPÁN, J., & HRABOVSKÝ, J. (2017, OCTOBER).
OVERVIEW OF CLOUD COMPUTING AND PORTABILITY PROBLEMS.
IN 2017 15TH INTERNATIONAL CONFERENCE ON EMERGING ELEARNING
TECHNOLOGIES AND APPLICATIONS (ICETA) (PP. 1-6). IEEE.
TYAGI, R. (2017). SECURITY ASPECTS OF CLOUD MIGRATION. INTERNATIONAL
JOURNAL OF ENGINEERING SCIENCE, 13137.