simple system design document example

Have An Introduction

Every document on the face of the earth begins with an introduction. Here, you should offer an overview of the system and any other information to place the system in context. It would be best to break down the introduction into four parts for organization and detail. The first section under the introduction should be the purpose of the document. E...

Provide A Design Overview

The second part of the system design document is the design overview. Just like the introduction, you should also break this down into four parts. If you are wondering what is expected of you while writing the system overview, it is a narrative form of the system without any technical terms. You can provide a high-level system architecture diagram ...

Discuss The Logical Architecture

The third step in coming up with an effective system design document is to discuss the logical architecture of the system. You should break this down into three parts to include the hardware, application and communication architecture. Under the hardware architecture, describe the entire system hardware and its organization. Ensure that you include...

Discuss The Physical Architecture

When writing your report, the fourth part should be dedicated to your network architecture. Be as exhaustive as you can and ensure that you cover everything regarding the physical architecture of the system.

Discuss The Data Model

You will discuss this in two parts. The first part should discuss the database management system files and the second, the non-database management system files. It would help if you liaised with the Database Administrator to prepare this section successfully. Make sure that you reveal the final design of all the databaseand non-database management ...

Discuss The Detailed Design

You should break this into three parts: hardware, application and communication detailed design. The essence of this section is to furnish the system development team with the information needed for building and integrating the hardware components, software modules and bridge a connection between these for a final functional product. Under the hard...

Discuss The External Interface Design

As the name suggests, external systems are not found within the scope of the system under development. Here, you should describe the electronic interfaces while emphasizing the view of the system under development. Be sure to divide this part into two subsections: the interface architecture and the interface detailed design. Under the interface arc...

Discuss The Graphical User Interface

Under this, you should discuss the detailed design of the system and the subsystem input and output applicable to the user. This should be divided into four subsections, the interface design rules, inputs, outputs and navigation hierarchy. After discussing the interface design rules, focus on the input. Here, you should capture all the input media ...

Discuss The System Integrity Controls

The last part of the system design document is system integrity control. Remember, sensitive systems use information that they cannot afford to lose, misuse, modify or permit unauthorized access. That could affect how state programs behave and present a breach of privacy. Therefore, specifications should be developed for certain levels of controls,...

What is a system design document?

A system design document is a detailed description of the system requirements, operating environment, architecture, files and database design. It also describes the input format, different interfaces, output layouts, processing logic and detailed design. Writing a system design document can be quite technical.

What are the types of system design?

Types of System Design Logical Design Logical design pertains to an abstract representation of the data flow, inputs, and outputs of the system. It describes the inputs (sources), outputs (destinations), databases (data stores), procedures (data flows) all in a format that meets the user requirements.

How do you design a system?

Remember, you’re not designing the entire product when you’re designing the system: you’re designing the major interrelated parts of it. The system design needs to describe the shape of the solution. It doesn’t need to answer every detailed design question.

What is an example of systems development?

Systems development is a dynamic process, and overlap often exists between the phases of systems planning, analysis, design, and implementation. For example, when you investigate a systems request, you begin a fact-finding process that often carries over into the next phase.