6.9 Using the basic model of an information system as presented in Figure 6.18, suggest the components that might be part of an information system that allows users to view box office events, available tickets and prices, eventually buy tickets.

Students should consider the levels in the information system and should identifycomponents that might be included at each level. Examples of these componentsmight be:Level 1 (Database level)Flight database; Flight status database; Airport information;Level 2: (Information retrieval level)Status management; Flight management; Search;Level 3: (User interaction level)Authentication; session management; forms processing ()Level 4 (User interface)Input checking (Javascript), browser

6.8 Using the generic model of a language processing system presented here, design the architecture of a system that accepts natural language commands and translates these into database queries in a language such as SQL.

6.6 Suggest an architecture for a system (such as iTunes) that is used to sell and distribute music on the internet. What architectural patterns are the basis for your proposed architecture?

6.4 Draw diagrams showing a conceptual view and a process view of the architectures of the following systems: Answer:

A ticket machine used by passengers at a railway station:

A computer-controlled video conferencing system that allows video, audio, and computer data to be visible to several participants at the same time:


A robot floor-cleaner that is intended to clean relatively clear spaces such as corridors. The cleaner must be able to sense walls and other obstructions:

6.2 You have been asked to prepare and deliver a presentation to a non-technical manager to justify the hiring of a system architect for a new protect. Write a list of bullet points setting out the key points in your presentation naturally, you have to explain what is meant by system architecture.

Registry System which contains Information #$traction System, Information Storage System and Information evaluation System provides the registry function of the all system. In that, administrator can manipulate the information about the employee or sample, store, delete, and add. Therefore, we have Control System. The decision making System used to decide whether a certain employee would be hired or not.

6.1 When describing a system, explain why you may have to design the system architecture before the requirements specification is complete.

The architecture may have to be designed before specifications are written to provide a means of structuring the specification and developing different subsystem specifications concurrently, to allow manufacture of hardware by subcontractors and to provide a model for system costing. You may have to design the system architecture before the requirements specification is complete because the architecture has a significant impact on the non-functional requirements and can also influence the functional requirements as well. Specifically, in order to demonstrate to stakeholders that an application will meet its performance requirements a project manager or system architect may have to show how the architecture will aid in accomplishing this goal. According to Sommerville the components affect the requirements and therefore an architecture that explains the components and their relationships may aid in the determination of the requirements. System architecture is to be designed first before describing the system itself simply because the architectural design serves as basis for the description. Since it involves identifying major system components, subsystems, and their communications, it will be easier in the description to specify which one goes to which subsystems. When subsystems are already made, it will be easier to determine what components are needed by hard are manufacturers. So, the architectural design provides a model for system costing.