How to write a Business Requirement Document

Running head: BUSINESS REQUIRMENTS REPORTS
Business Requirements Report
Name of the Student
Name of the University
Author’s Note

1BUSINESS REQUIREMENTS REPORT
Table of Contents
Introduction......................................................................................................................................2
Possible delivery and deployment models.......................................................................................2
IaaS and PaaS Evaluation............................................................................................................3
Possible Architecture for OSDS..................................................................................................4
Use of Cloud Edge for OSDS..........................................................................................................5
Differences between monolithic & MicroService Architectures.....................................................7
Evaluation of Software Architectures..............................................................................................9
Recommended Approach...............................................................................................................11
Conclusion.....................................................................................................................................12
References......................................................................................................................................14

2BUSINESS REQUIREMENTS REPORT
Introduction
DSI (Department of Spatial Information), which applies to the state government business,
offers spatial information exclusively to government agencies and limited detail to the public. It
uses the Online Spatial Delivery System (OSDS) to provide this sort of information. To handle
all that material, DSI uses the web services as well as other internal applications. As the interest
in this program grew, DSI had decided to introduce a modern knowledge management
framework, retaining the infrastructure and providing it to the public and government alike. After
figuring out several ideas DSI Executive team came up with two recommendations either to
expand the storage and hosting capability of DSI data centers or to move OSDS to cloud
provider. The executive of DSI chose to adopt the OSDS to the cloud provider for meeting their
budget restriction. Therefore, this report aims to discuss the advantages and disadvantages of
IaaS and PaaS and evaluate the usages of Cloud edge for OSDS. This report also compares the
monolithic and MicroService architectures and evaluates the software architecture.
Possible delivery and deployment models
The possible deployment model for DSI is cloud-based OSDS, which will be very
beneficial for them. An OSDS is the computer storage system, which connects the data through
containers called artifacts defined by a user or program (Noel & Lama, 2017). The objects are
positioned in the flat address space where all of them reside at the same stage and it cannot be
put within each other. It has the unique object identifier, which enables the end user or the
server for retrieving it without knowing the physical location of the data stored within.

3BUSINESS REQUIREMENTS REPORT
IaaS and PaaS Evaluation
For this study, the chosen service of OSDS is PaaS. PaaS (Platform as a Service) will
help in enabling DSI to reserve computing room on the computer, which offers capacity for
running applications, apps, which operating systems in the cloud as well (Yangui et al., 2016). It
will help the developers to check new applications if and when required on leased virtual
computers. There are benefits as well as a few drawbacks as in PaaS.
Advantages
 Automated Upgrades: The upgrades of the applications are performed automatically and
all the new releases, improvements are available (Kolb & Wirtz, 2014). An upgrade will
not run the risk of losing out. That will save loads of time and money. Security updates
address any glitches and other technical concerns.
 Low Investments: DSI will be able to use the app without needing to spend in technology
elsewhere in an in-house environment.
 Reduced Costs: Because the billing process is pay-as-you-use, significant savings are
rendered for the organization without needing to buy the required tools such as
databases and server to operate the application (Amaral et al., 2015).
 Collaboration: Since this is an internet-based network, it helps workers to access and
operate on the apps from anywhere, upgrade them without being physically present in the
company premises.
 Focus: Instead of getting drawn to system repairs, the IT unit will rely mainly on key
applications.
Disadvantages