System Analysis

Against the backdrop of ever-present time and market pressures, it’s easy to understand why so many emerging businesses fail to develop and deploy web applications with strategic forethought, thorough documentation, and a commitment to a structured support process. And as time passes, it’s no surprise when these systems begin to break down, reach their performance limits, or fail altogether.

If you’re experiencing the impact of an outmoded or broken web system, or simply need to document and standardize before it’s too late, Verndale’ systems and business analyst’s can help. Our team will work with yours to document, plan and enhance existing web systems within a structured and controlled environment. We’ll also keep a close eye on the cost/benefits of continued maintenance vs. rebuilding and identify risks and opportunities associated with each choice.

Structured Systems Analysis and Design Method is a systems approach to the analysis and design of information systems. This methodology can be thought of as a document-led approach to system design.

Techniques used in System Analysis ans Design:

Logical Data Modeling: This is the process of identifying, modeling and documenting the data requirements of the system being designed.

Data Flow Modeling: This is the process of identifying, modeling and documenting how data moves around an information system.

Entity Behavior Modeling: This is the process of identifying, modeling and documenting the events that affect each entity and the sequence in which these events occur.

Stages of System Analysis and Design:

Feasibility Analysis stage: A Data Flow Diagram is used to describe how the current system works and to visualize known problems in the system.

Logical System Specification stage: A study of system requirements is done and the current business environment is modeled. Modeling consists of creating Data Flow Diagram and Logical Data Structure for processes and data structures that are part of system. Based on this study a Business System Options is selected and implemented.

Requirements Specification stage: This assists the management to make a best choice, a number of business system options, each describing the scope and functionalities provide by a particular development/implementation approach, are prepared and presented to them.

Logical System Specification stage: This stage helps in determining technical feasibility options. The development/implementation environments are specified based on this choice.

This also includes logical process design. Logical designs and processes are updated and the dialogs between users, entity and processes are specified.

Physical Design stage: This stage specifies the physical data and process design using the language and features of the chosen physical environment and incorporating installations standards.