| A | B |
|---|
| System Life Cycle | Refers to the stages through which the development of a new system passes through. |
| Computer System | Includes hardware, software, people working with it or using it and the immediate environment. |
| Planning a new system | Is the process of thinking about various details and organizing the activities required to achieve the desired goal. |
| Lack of end-user ownership of system | One of the organizational issues |
| Feasibility study | Evaluates and analyzes a project and its potential based on various technical, economical, legal, operational and scheduling criteria. |
| Technical feasibility | Is the existing technology sufficient to implement the proposed system? |
| Change management | It involves various parameters and is a process of shifting individuals teams, departments and organization from the present to a desired state. |
| Legacy system | Refers to an old technology, computer system, or application program. |
| Business merger | Combination of two or more business entities |
| Cost Reduction | main reason for companies to merge. |
| Software incompatibility | Situation where different software entities or systems cannot operate satisfactorily, cooperatively or independently, on the same computer , or on different computers linked by a local or wide area computer network. |
| SAAS | on demand software |
| Changeover | Process of putting the new system online and retiring the old one |
| Parallel | Both system work simultaneously for a short period of time. |
| Big Bang | Plugs in new system and um plug in the old one. |
| Pilot | New system is introduced in one of the sites and extended to other sites over time |
| Phased | Converts one module of the system at a time. |
