Phase Analysis

The third phase of the SDLC is the phase Analysis. The phase Analysis is the phase at which the system being studied and the system running the proposed replacement. System described in this stage running, problems, and opportunities are defined, and general recommendations for how to improve, enhance or replace the proposed system is running. The main objective and the analysis phase is to understand and document business needs and requirements of new systems and processes. There are six main activities in this phase:

1. Collection of information
The initial step in the analysis stage is to collect information about how the business processes that exist in the old system running. Then determined at points where any business process that has the problem that can be solved by information systems. And weaknesses are identified and repaired old systems with new systems.

2. Defining the system requirements
And weaknesses of information systems is obtained, then the system analysts to define what is actually needed by the old system to overcome the problem. This is what is referred to as system requirements. Often these needs will change the total overall business processes on the old system, but sometimes it just changes the addition of several new procedures.

3. Prioritize needs
In some cases, the need to obtain a very complete and complex. Availability of time and other resources to complete the whole requirement may not be sufficient. In this condition, then the analyst will prioritize the needs that are considered critical to be prioritized.

3. Develop and evaluate alternatives
One thing that analysts should not be forgotten is the second plan. After arranging and prioritizing needs, the analyst must prepare an alternative arrangement in case the need will be rejected by the client.

4. Review needs with management
The final step is to review existing requirements with the client, because the client the most out of their system needs.