GIS application "The importance of system architecture design"
Business requirements include,
but are a variety of business workflow and Web services for managing a
business. There needs to be clarified at an early stage of the planning process
of these workflows and services. Workflow and service made it clear here is the
foundation of the subsequent steps of the planning process. Estimated the
amount of processing at the peak of workflow and business services, design load
of the system (server processing time, network traffic, etc.) must be predicted
on the basis of it. Load caused by processing of these will be basic
information for the network infrastructure required to determine the
appropriate specifications and hardware requirements (performance requirements
and processing power). Develop a project to introduce to procure the necessary
technology. In this project in addition to budget and schedule to determine the
various interim targets to complete the project. When you begin the design work
and implementation work, you must have prior approval. At that time, as a
result of an investment (budget), and then decide whether to approve based on
whether the benefits brought about and how the business funds (schedule) a
predetermined period of time. Can plan appropriate, the introduction of system
risk is reduced. To ensure a successful project, you do not will have to build
a system that meets the business requirements were investigated. By setting a
goal for the intermediate to clarify the indicators of system performance, the
performance goes up in stages, concrete verification plan, You can certainly
reduce the risk of introduction. Plan is a gradual process tailored to the
rapidly changing technology. To actually plan, you need to consider the
evolution of technology and changing business needs. In addition, you must to
be carried out to ensure that project tasks on schedule and within budget
provided an effective change management process is responsive, was decided.
Distributed computing
environment, must be designed to meet the requirements (productivity)
performance of the user. Most inferior performance by the "weakness",
the performance of the entire system would be constrained in the system. Thus
it is important it is, in accordance with the system architecture design
process is to determine the balanced hardware solutions. Is to procure
equipment and network hardware load balancing system based on the model, you
can achieve maximum system performance at minimal cost.
Conditions for building a
high-performance GIS is not just hardware. You need to design a business
workflow to optimize the productivity of the client (simple maps), that can
efficiently manage large spatial processing of the load. In addition, designing
a geo-database to meet the performance requirements and usability of the system
to the authenticator, and then select a data source. In addition, the
operational components of the platform (servers, workstations, storage) when
you select, you will need to secure the performance can be processed in a
reasonable service response time of peak load by the business workflow. In
addition, it is also important to design a system architecture taking into
account the limitations of distributed communication network bandwidth
requirements and overall performance. In other words, you must select the
solution architecture and technology infrastructure, such as a shared resource
can be saved. System architecture design is the foundation for building a
highly productive environment.
The best way to
promote a smooth introduction to understand the technology first, to quantify
the user requirements, on it, is to select a software technology that suits the
purpose, to deploy the appropriate hardware. If you ignore the initial step,
after all, it does not have to fix it later; you will need a tremendous cost.
Cost of change will increase more rapidly as can be seen from Figure right, the
introduction of advance.
