SYSTEM ANALYSIS & DESIGN BY WAQAS

1. Institute of Business & Technology (BIZTEK) LECTURE-3 System Analysis & Design

2. Technological requirements should be taken into account when designing information systems. The important points are as follows: Information volume : Information technology equipment must be suitable with the volume of information that is to be processed; Period : Everyday information which arises regularly is repetitive information that requires special care; Accuracy : Specially high accuracy is required now and then. Accuracy is important but difficult to meet; Complexity : Issues in information treatment can be processed in principle. However, due to its complexity, the current system fails to resolved the issues that need to be resolved by the new system. Technical Requirements

11. The language you use and the way you talk about technical stuff should in some way create a close contact between you and the one you’re interviewing. COMMUNICATIONS

14. In order to get an overview of an organization, take a look at its pile of paper and document, interruption of work, unreasonable timing and positive reflection of a good working environment... It’s also important to know the quantity and quality of data that need to be processed and predict how they change over the time. Researching through document is the final good method to get important information. UNOFFICIAL OBSERVATION

15. QUESTIONNAIRE METHOD This method requires your clear instructions to the user. A questionnaire can be designed base on the following points: Title: describe the objectives and main contents; Data classification: categories of data that will be used; Data: contents of the data in each category.

18. SYSTEM LIFE CYCLE Conversion Obsolescence Lifetime of a System LIFE CYCLE STAGE System Development using System Development Methodology LIFE CYCLE STAGE System Operation and Support using Information Technology

19. REQUIREMENTS DISCOVERY Given an understand of problems, the systems analyst can start to define requirements. Fact-finding – the formal process of using research, meetings, interviews, questionnaires, sampling, and other techniques to collect information about system problems, requirements, and preferences. It is also called information gathering or data collection.

26. Free-format questionnaire – a questionnaire designed to offer the respondent greater latitude in the answer. A question is asked, and the respondent records the answer in the space provided after the question. Fixed-format questionnaire – a questionnaire containing questions that require selecting an answer from predefined available responses Questionnaires… (cont) Types of Questionnaires