SOFTWARE ARCHITECTURE
I.
INTRODUCTION
 Software architecture is the high-level structure and organization of a software
system.
 It defines the components, their interactions, and the overall design principles.
 It focuses on decisions that affect the system's quality attributes, like performance,
scalability, and maintainability.
 It provides a blueprint for developers to follow when implementing the system.
 It guides the allocation of responsibilities among different software modules.
 It helps stakeholders understand and communicate about the system's design and
functionality.
II.
CLIENT/SERVER ARCHITECTURE
 Server – manages one or more information system resources or provides a welldefined service.
 Client – communicates with a server to request resources or services, and the server
responds to those requests.
 Client/Server Architecture – is a general model of software organization and behavior
that can be implemented in many ways. (may illustration)
 The architectural issues to be addressed when designing client/server software are:
- Decomposing software into client and server programs or object
- Determining which clients and servers will execute on which computer systems.
- Describing the communication protocols and networks that connect clients and
servers.
 Centrally Managed Services – includes security authentication and authorization,
credit verification, and scheduling. In each case, a service provides a set of well
defined processes such as retrieval, update and approval based on a data store that is
hidden from the client.(may illustration)
