


Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
An overview of the planning process for system development, including the phases of it planning, business drivers, and the system development life cycle (sdlc) model. It also discusses different types of sdlc models such as waterfall, incremental, and iterative models. Useful for understanding the structuring of hardware and software to achieve effective and efficient processing of information.
Typology: Study notes
1 / 4
This page cannot be seen from the preview
Don't miss anything!



Planning for System Development
The management should prefer to have a plan for IT development so as to help it to take various software development projects in a structured way. At the very start, planning is done by the management regarding following issues
IT planning provides a structured means of addressing the impact of technologies, including emerging technologies, on an organization. Through the planning process, relevant technologies are identified and evaluated in the context of broader business goals and targets. Based on a comparative assessment of relevant technologies, the direction for the organization can be established. Business planning is an accepted responsibility of management. Plans provide a direction and framework for action. Plans enunciate business goals and the actions that need to be initiated to achieve those goals including related benefits, resources and timeframes.
Increasingly, information technologies not only support but, also may drive or enable business strategies. In this context information technologies are an integral part of the business planning process itself. If such potential is evident after the completion of the business plan, then the business plan must be revisited and, if appropriate, revised.
17.1 Phases of IT planning
Although information technology plans are unique, the planning process and the underlying activities are similar.
concluded by recommending a monitoring and control mechanism.
What is System Development?
System development refers to the structuring of hardware and software to achieve the effective and efficient processing of information. Information systems are developed keeping in view the needs to be met. There can be two reasons for system development.
growing and changing needs of the organization or the old system has become too slow or there are newer more efficient and user friendly development tools are available.
In both the above mentioned situations, the phases followed for system development would be the same. The extent of system study, analysis & design may depend on the fact whether the existing system is manual or computerised. To develop systems, various development models or techniques are deployed. Let us understand why these development models are used.
17.2 Models Used for System Development
Initially software development consisted of a programmer writing code to solve a problem or automate a procedure. Nowadays, systems are so big and complex that teams of architects, analysts, programmers, testers and users must work together to create the millions of lines of custom-written code that drive our enterprises. To manage this, a number of models for system development have been created. The most famous of these models is the system development lifecycle model (SDLC) or Lifecycle Models.
17.3 Systems Development Life Cycle
System Development Life Cycle (SDLC) is the overall process of developing information systems through a multi-step process from investigation of initial requirements through analysis, design, implementation and maintenance. SDLC is also known as information systems development or application development. SDLC is a systems approach to problem solving and is made up of several phases, each comprised of multiple steps. It describes the stages a system passes through from inception until it is discarded or replaced. SDLC provides
Project lifecycle vs. SDLC
The systems development life cycle is a project management technique that divides complex projects into smaller, more easily managed segments or phases. Segmenting projects allows managers to verify the successful completion of project phases before allocating resources to subsequent phases. Although System development can be seen as a project in itself, but the attribute that makes system development different from regular projects is that a project has a definite end and it is unlikely that ongoing maintenance will be included in the scope of the project but this falls in the definition of SDLC.
17.4 Types of System Development Life-Cycle Model
Once the entry is successful, a preliminary study can be carried out to evaluate the feasibility of the new system. A Feasibility study team should be constituted